diff --git a/celt/_kiss_fft_guts.h b/celt/_kiss_fft_guts.h
index 637ce2a0f34d06c474f1f55a3cb2d5a4fdddc5c8..0285690d5f6a1e555834866cee1181fdbe6bb94e 100644
--- a/celt/_kiss_fft_guts.h
+++ b/celt/_kiss_fft_guts.h
@@ -11,6 +11,11 @@
        this list of conditions and the following disclaimer in the
        documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
diff --git a/celt/arch.h b/celt/arch.h
index a7cfbe893fbb5a5b11b5e05d47fe2c610c87498f..2061a0a8b4998b9fb1d3a3c9eaba9d8a51458c49 100644
--- a/celt/arch.h
+++ b/celt/arch.h
@@ -18,6 +18,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/bands.c b/celt/bands.c
index 8ff50def0285b09ce2b1499dfdeed5be3ac05ae3..700a6242fef9a6a24ef1f25e40918bca188f2cf4 100644
--- a/celt/bands.c
+++ b/celt/bands.c
@@ -14,6 +14,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/bands.h b/celt/bands.h
index cce16a09ce704487a12c90362746763840e70143..539bcade153a95afbb3edfd4bcd87c0ceecc743a 100644
--- a/celt/bands.h
+++ b/celt/bands.h
@@ -14,6 +14,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/celt.c b/celt/celt.c
index f14c7f80d323636ad431631f2d1273929fa3a253..6e182839e7c44b21c684277ad139f84b43cab3dc 100644
--- a/celt/celt.c
+++ b/celt/celt.c
@@ -14,6 +14,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/celt.h b/celt/celt.h
index da4464ced063ec0697d2c5ffccfab9be38d31071..711d3039db404341d4dc4083765762e2f0a7a573 100644
--- a/celt/celt.h
+++ b/celt/celt.h
@@ -19,6 +19,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/celt_lpc.c b/celt/celt_lpc.c
index d2addbf24b2323e0368242df94605c8a3a46c12d..690cd1c26c9cafed19e312d7dbed12b0eeebf686 100644
--- a/celt/celt_lpc.c
+++ b/celt/celt_lpc.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/celt_lpc.h b/celt/celt_lpc.h
index 2baa77edf8b8226634d726365988a32315f1b55c..782e6b30d77c413e3e6854c6a0359a78323a40bd 100644
--- a/celt/celt_lpc.h
+++ b/celt/celt_lpc.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/cwrs.c b/celt/cwrs.c
index 2c31d6fed0cb11f1f4a46bc364a943f157c03fc7..af91d6235803860d5e27aad6432b342e19270767 100644
--- a/celt/cwrs.c
+++ b/celt/cwrs.c
@@ -14,6 +14,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/cwrs.h b/celt/cwrs.h
index 7dfbd076d1695f2fb300b418bcdeb3a5434c01b7..ab9d0e041ab1be67cf23a7cf85b6e23c27dae9db 100644
--- a/celt/cwrs.h
+++ b/celt/cwrs.h
@@ -14,6 +14,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/dump_modes/dump_modes.c b/celt/dump_modes/dump_modes.c
index 8c07e196bd8e0b2224915262c1ba246162c46d6a..9d74174ceb6e5f1cde6b1cb927642cd276ec3bfe 100644
--- a/celt/dump_modes/dump_modes.c
+++ b/celt/dump_modes/dump_modes.c
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/ecintrin.h b/celt/ecintrin.h
index 3dffa5f95c9f5f8954ecbea00457a303e2948da9..1b56fc0fc4fdcfc98f7d35a22688e53878507eb6 100644
--- a/celt/ecintrin.h
+++ b/celt/ecintrin.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/entcode.c b/celt/entcode.c
index 02ac690be03478d1c497b1fe3a61792ad5e33b1b..5c01922958fb3e92e64606304bcf60281786434d 100644
--- a/celt/entcode.c
+++ b/celt/entcode.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/entcode.h b/celt/entcode.h
index aebecc064756398d83c475b43030e9fa27141490..e803685db232fd36b1efb331101a937b8fff566c 100644
--- a/celt/entcode.h
+++ b/celt/entcode.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/entdec.c b/celt/entdec.c
index 75e3e45a7f530818b4e80dff07bcf60f87da843a..56c282923fb87c60d7dea6e700bc264184f4faf8 100644
--- a/celt/entdec.c
+++ b/celt/entdec.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/entdec.h b/celt/entdec.h
index d8ab3187308828fb65c8503f787bb7fd455228e5..2e79975b2639abf3e494c048fb01161c7cd5ce17 100644
--- a/celt/entdec.h
+++ b/celt/entdec.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/entenc.c b/celt/entenc.c
index a7e34ecef971f486e63bfd011c3bc7b5788a7f4a..bf01b8870fb2822fb3cfe966f6fd2e39ff203bda 100644
--- a/celt/entenc.c
+++ b/celt/entenc.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/entenc.h b/celt/entenc.h
index 796bc4d5727f5bf526daf2bef3157003a9953d55..25bda1e1d3c01b299a2346a4cbf563120e945231 100644
--- a/celt/entenc.h
+++ b/celt/entenc.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/fixed_c5x.h b/celt/fixed_c5x.h
index f0c4291ba921f6f55567fd05eee06952917c0fac..5bf6e99cdb3dff58d5b9d7656d0e989e279745a1 100644
--- a/celt/fixed_c5x.h
+++ b/celt/fixed_c5x.h
@@ -15,6 +15,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/fixed_c6x.h b/celt/fixed_c6x.h
index fae92fd034fae980c75cba5865807b0e5adb1aa2..bb91c471af515d9466f0b087cc734a49900b5252 100644
--- a/celt/fixed_c6x.h
+++ b/celt/fixed_c6x.h
@@ -15,6 +15,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/fixed_debug.h b/celt/fixed_debug.h
index f3d73cfd50d7ee440f30b47ce4c2c5c2225a041f..e629d3958d794a776d8fb4ba6b66b142cc922874 100644
--- a/celt/fixed_debug.h
+++ b/celt/fixed_debug.h
@@ -16,6 +16,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/fixed_generic.h b/celt/fixed_generic.h
index d5ea1219bdb5b340e072b0d6e79a263870a61ea9..eeb3cd6ba89823100f4d32d097876648db2d190f 100644
--- a/celt/fixed_generic.h
+++ b/celt/fixed_generic.h
@@ -17,6 +17,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/float_cast.h b/celt/float_cast.h
index 9095bb6627ee143b831fbc010dd3b5143b3acfb2..56dfa0929a6daca73a16c5af147002139c1c8736 100644
--- a/celt/float_cast.h
+++ b/celt/float_cast.h
@@ -11,6 +11,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/kiss_fft.c b/celt/kiss_fft.c
index f6b909444135a04066f086964b9642cc9862e7fc..535aebb44d670a8b210480b3deb6ed117e565e51 100644
--- a/celt/kiss_fft.c
+++ b/celt/kiss_fft.c
@@ -14,6 +14,11 @@
        this list of conditions and the following disclaimer in the
        documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
diff --git a/celt/kiss_fft.h b/celt/kiss_fft.h
index 66332e3bb95b36a6659c5a8afe5c6ca99d39c406..6c0f5e8b5c9fc9c4dd55bfff97c0c31c611ab86a 100644
--- a/celt/kiss_fft.h
+++ b/celt/kiss_fft.h
@@ -14,6 +14,11 @@
        this list of conditions and the following disclaimer in the
        documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
diff --git a/celt/laplace.c b/celt/laplace.c
index 27e42becb7cc10dad1607d8e0a02ddef2c5e3130..02364cdf082cd21694415bea694a50a310a6ba96 100644
--- a/celt/laplace.c
+++ b/celt/laplace.c
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/laplace.h b/celt/laplace.h
index 46c14b5da5839ff9bc7890b83965b73221fb4225..554e1f6472d792a20c039b53db6a1168b8a6855d 100644
--- a/celt/laplace.h
+++ b/celt/laplace.h
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/mathops.c b/celt/mathops.c
index 30807ec6596fc2fd61f9f821ad2ee7256908917b..130faccf5866ab629522b322f4f52db2de84a5bb 100644
--- a/celt/mathops.c
+++ b/celt/mathops.c
@@ -18,6 +18,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/mathops.h b/celt/mathops.h
index 39287051a2cafc7600a359774b32a8faa82ece60..c53a29323b2aa350fe8e4688fdc16c9da0d169a3 100644
--- a/celt/mathops.h
+++ b/celt/mathops.h
@@ -18,6 +18,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/mdct.c b/celt/mdct.c
index 3193b7ccb7c519981865118bc3098e7c469b836d..4013210b9809dacc792057c6906795c41e4bedd3 100644
--- a/celt/mdct.c
+++ b/celt/mdct.c
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/mdct.h b/celt/mdct.h
index 5ec26d0a9ca4325fe0d7c0fdefd997479a3fc221..93d4c9046adb37fb59a5a36aeeeb54d692a7f8b1 100644
--- a/celt/mdct.h
+++ b/celt/mdct.h
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/mfrngcod.h b/celt/mfrngcod.h
index 809152a59a96407e6a8921e007b291155dd833e2..a50686221e3af2a4024623989ddd1cfd322b9917 100644
--- a/celt/mfrngcod.h
+++ b/celt/mfrngcod.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/modes.c b/celt/modes.c
index ed204d7d9c4184a96c79af2ea9e3f4a888dd7ba2..bde9ecbe02d598a7c5deca154c6a22ff0b122fed 100644
--- a/celt/modes.c
+++ b/celt/modes.c
@@ -14,6 +14,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/modes.h b/celt/modes.h
index c8340f9875c2f590e084c99a9370c9747afea905..c3380ac20e0fa5ad097a00847a7eabeff798c6db 100644
--- a/celt/modes.h
+++ b/celt/modes.h
@@ -14,6 +14,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/opus_custom_demo.c b/celt/opus_custom_demo.c
index f45ba76219b1e77f269938e4bfb30e1fd3860636..2d08f8ade232131c5132b97d4a6b9442ba8d2bfb 100644
--- a/celt/opus_custom_demo.c
+++ b/celt/opus_custom_demo.c
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
    
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/os_support.h b/celt/os_support.h
index 2484f0b2f751d8a859c4d53af9e4296e6e6fbec2..bf891e77abbc1f4f938381aaecde9056201a1ee2 100644
--- a/celt/os_support.h
+++ b/celt/os_support.h
@@ -15,6 +15,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
diff --git a/celt/pitch.c b/celt/pitch.c
index a69e5995d202617927f49540b15e0c35d6822302..d8c6978322dad5848e5bd00f9227e6e69bdc4a6e 100644
--- a/celt/pitch.c
+++ b/celt/pitch.c
@@ -18,6 +18,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/pitch.h b/celt/pitch.h
index 2509d64b42ef33d20ab13a2f4e5c305f788a1e3b..e18ca85ad1c47343b8ee2ef16b6153552bebb9f9 100644
--- a/celt/pitch.h
+++ b/celt/pitch.h
@@ -18,6 +18,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/quant_bands.c b/celt/quant_bands.c
index 5fb038a34276edb3b42e141d6f89520f427bdec7..9fe327056fa58bbe49964c1a48916c47e98a8147 100644
--- a/celt/quant_bands.c
+++ b/celt/quant_bands.c
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/quant_bands.h b/celt/quant_bands.h
index bec2855cf09edc62833a9c04843690acc76fb255..ff26aca045f80dbe23dce6657c29c472cc51c9cd 100644
--- a/celt/quant_bands.h
+++ b/celt/quant_bands.h
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/rate.c b/celt/rate.c
index 32fe9ac684d8c91383d5207c1755d38402b557da..989aef775dcb88eed4087a740f95a9de589e8d96 100644
--- a/celt/rate.c
+++ b/celt/rate.c
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/rate.h b/celt/rate.h
index 8960e3d3bb6cae05b32ae4fc606af55433c9f742..b48595b816c2d5d9771d97945512aa39ed0e9054 100644
--- a/celt/rate.h
+++ b/celt/rate.h
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/stack_alloc.h b/celt/stack_alloc.h
index 68569e2b1256a48633585009eef28a677f1e1f62..f3a99b151d57bfbd20fb1395c0bb59d83c2e67df 100644
--- a/celt/stack_alloc.h
+++ b/celt/stack_alloc.h
@@ -16,6 +16,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/vq.c b/celt/vq.c
index a2a4fd36d2526d5f3099e7bebeade2d3db4aa3f3..16aeb43ffe28de2d3d54aa0fcc004cedbef226f4 100644
--- a/celt/vq.c
+++ b/celt/vq.c
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/celt/vq.h b/celt/vq.h
index 1ceeeeb268f737b8f93314f24aad3dd6503fa480..b0640a5e32773be2f3eadadada61994a14167f2f 100644
--- a/celt/vq.h
+++ b/celt/vq.h
@@ -17,6 +17,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/include/opus.h b/include/opus.h
index f957cca668f30d26eb0629a2c95ef76a015a68b1..46d9aced7b9119d79e8b1faa2aeb54dd423945fb 100644
--- a/include/opus.h
+++ b/include/opus.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/include/opus_custom.h b/include/opus_custom.h
index c1e044df85e46af145d46306a2d594c8eb50eb05..c30964e19f9b40f169e34a8a7edf74bd1ba8c507 100644
--- a/include/opus_custom.h
+++ b/include/opus_custom.h
@@ -19,6 +19,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
    
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/include/opus_defines.h b/include/opus_defines.h
index d89f995cfdc5c5b5cc1989134e8033e604e1b914..fffe58dc91076d67f8943bb306610f07c46de9a7 100644
--- a/include/opus_defines.h
+++ b/include/opus_defines.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/include/opus_multistream.h b/include/opus_multistream.h
index ff33419894bd1129c9f2d5c52dffaa272b235989..10d34ec889fdaeee690a18bde75c1f417dc46709 100644
--- a/include/opus_multistream.h
+++ b/include/opus_multistream.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/include/opus_types.h b/include/opus_types.h
index 3308de89684cc15ec13e8a9f7fa922bdc0f8ecdc..121184882e7da9284e30ccbe5537a296d8023e32 100644
--- a/include/opus_types.h
+++ b/include/opus_types.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/src/opus.c b/src/opus.c
index d6ae7bab24e688901361e9681386d99492fb067f..505ab7f7d1d2d1d1338a205b3e2c757d5795bf4b 100644
--- a/src/opus.c
+++ b/src/opus.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/src/opus_decoder.c b/src/opus_decoder.c
index 3d1c064f5e1a25fcc148906bdca3935d39c518cd..912e4060cb5b37bb7e7fd6d91f2cad9ceebb6970 100644
--- a/src/opus_decoder.c
+++ b/src/opus_decoder.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/src/opus_demo.c b/src/opus_demo.c
index 5a295fd7437de4edf7621064d4c73292b1f75d3c..06f30e1982dcdb262115bf703c249c47fced9fd6 100644
--- a/src/opus_demo.c
+++ b/src/opus_demo.c
@@ -13,6 +13,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/src/opus_encoder.c b/src/opus_encoder.c
index 232180cdd2ba9a156a68fb8eb5a8763127c29f79..d9c9078216a81df7d88626770af7ca80507bb929 100644
--- a/src/opus_encoder.c
+++ b/src/opus_encoder.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/src/opus_multistream.c b/src/opus_multistream.c
index f4e4e770db328c5da3f2fbb29c9ecfa869d6905b..86f30cd621fe097c99984a0aafb01107d9432012 100644
--- a/src/opus_multistream.c
+++ b/src/opus_multistream.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/src/opus_private.h b/src/opus_private.h
index 2f4538aec0473b07cd4eca50e8f4402a32026ce5..675c2c4639901b7415415abec3c9120dd8a65e81 100644
--- a/src/opus_private.h
+++ b/src/opus_private.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/src/repacketizer.c b/src/repacketizer.c
index 3370a873f736d01993e4ff1538bc777a4ca2c980..c31653aae1345ccc44eb905c4cffb2c50253419a 100644
--- a/src/repacketizer.c
+++ b/src/repacketizer.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/src/repacketizer_demo.c b/src/repacketizer_demo.c
index 910f313eacabd88c77999c77c04cfe03214ec51b..cf8e55fcb0807aaaac7e8f06dc0550a1dadb8a16 100644
--- a/src/repacketizer_demo.c
+++ b/src/repacketizer_demo.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/tests/test_opus_api.c b/tests/test_opus_api.c
index 545ef68908283aa14124f7b2480ed209c66585d9..ae68d59bda1058460577a830892fa56d73d0089c 100644
--- a/tests/test_opus_api.c
+++ b/tests/test_opus_api.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/tests/test_opus_common.h b/tests/test_opus_common.h
index d1e6b452918ed0e29c8208fcb7682bf174973b49..93edb5b26a67af2aecaae910964b87c185dc0aa3 100644
--- a/tests/test_opus_common.h
+++ b/tests/test_opus_common.h
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/tests/test_opus_decode.c b/tests/test_opus_decode.c
index a15a31d7c79e1b6d3adb05d4321ac8c32f4a8bdc..bd87dbe557f9d674e2ada3f7cecf4374cb668bfe 100644
--- a/tests/test_opus_decode.c
+++ b/tests/test_opus_decode.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
diff --git a/tests/test_opus_encode.c b/tests/test_opus_encode.c
index 658ab4ca4c6c8c83f8b4763457e1355ebd9793ce..3b1231de7331eec5a222b88db7852e7f68f0e563 100644
--- a/tests/test_opus_encode.c
+++ b/tests/test_opus_encode.c
@@ -12,6 +12,11 @@
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 
+   - Neither the name of Internet Society, IETF or IETF Trust, nor the
+   names of specific contributors, may be used to endorse or promote
+   products derived from this software without specific prior written
+   permission.
+
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR