search for: replaygain_reference_loud

Hi has anyone looked at adding R128gain code to metaflac so we can select to use this calculation for RP tags rather than replay gain? Best regards -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/flac-dev/attachments/20140615/1c1ca9c9/attachment.htm

>The use of R128 also raises the question about "REPLAYGAIN_REFERENCE_LOUDNESS" >tag. Currently flac/metaflac writes "REPLAYGAIN_REFERENCE_LOUDNESS=89.0 dB" >but doesn't use it when decoding (it seems that nothing uses this tag). >R128 defines reference level differently, so this tag makes little sense for >it. IMHO it's better not to wr...

...bur128/) - >"libebur128 is a library that implements the EBU R 128 standard for >loudness normalisation. All source code is licensed under the MIT license"; >foobar2000 uses it to calculate ReplayGain values. > > > >The use of R128 also raises the question about "REPLAYGAIN_REFERENCE_LOUDNESS" >tag. Currently flac/metaflac writes "REPLAYGAIN_REFERENCE_LOUDNESS=89.0 dB" >but doesn't use it when decoding (it seems that nothing uses this tag). >R128 defines reference level differently, so this tag makes little sense for it. >IMHO it's better not to wr...

...t;b) According to http://wiki.xiph.org/OggOpus#Comment_Header >there should be no REPLAYGAIN_*** tags in Opus files; Opus uses >R128_TRACK_GAIN tag. If some audio player reads Opus tags then it should >be aware of the difference between ReplayGain and R128. But this doesn't >require REPLAYGAIN_REFERENCE_LOUDNESS tag. > > The Opus replaygain spec is fundamentally broken, so let's ignore that for now. It is discussed ad nauseam elsewhere, but isn't going to change any time soon. I agree any replaygain reference loudness tag should only apply to other REPLAYGAIN* tags, although placing R12...

...had expected the album values to be the maximum of those of the tracks. By the way, i guess the REPLAY_GAIN_TRACK is the gain required to reach the REFERENCE_LOUDNESS. # flac --replay-gain *.wav # for f in *.flac; do echo "\n$f"; metaflac --export-tags-to= - $f; done e512100f_00.flac REPLAYGAIN_REFERENCE_LOUDNESS=89.0 dB REPLAYGAIN_TRACK_GAIN=-8.58 dB REPLAYGAIN_TRACK_PEAK=0.99996948 REPLAYGAIN_ALBUM_GAIN=-8.31 dB REPLAYGAIN_ALBUM_PEAK=0.99996948 e512100f_01.flac REPLAYGAIN_REFERENCE_LOUDNESS=89.0 dB REPLAYGAIN_TRACK_GAIN=-8.62 dB REPLAYGAIN_TRACK_PEAK=0.99996948 REPLAYGAIN_ALBUM_GAIN=-8.31 dB REPLAYGA...

...lease tell me if i am right -- if the "REPLAYGAIN_ALBUM_*" values are supposed to be the maximum (or minimum) of the REPLAYGAIN_TRACK_* values over all tracks. # flac --replay-gain *.wav # for f in *.flac; do echo "\n$f"; metaflac --export-tags-to= - $f; done e512100f_00.flac REPLAYGAIN_REFERENCE_LOUDNESS=89.0 dB REPLAYGAIN_TRACK_GAIN=-8.58 dB REPLAYGAIN_TRACK_PEAK=0.99996948 REPLAYGAIN_ALBUM_GAIN=-8.31 dB REPLAYGAIN_ALBUM_PEAK=0.99996948 e512100f_01.flac REPLAYGAIN_REFERENCE_LOUDNESS=89.0 dB REPLAYGAIN_TRACK_GAIN=-8.62 dB REPLAYGAIN_TRACK_PEAK=0.99996948 REPLAYGAIN_ALBUM_GAIN=-8.31 dB REPLAYGA...

Copy additional filter values from Foobar2000 as found in <http://code.google.com/p/sirens2/source/browse/trunk/libwavpack-4.32.psp/wvgain.c?r=32> to allow metaflac to perform gain analysis on high sample rate audio. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/flac-dev/attachments/20120107/018c821b/attachment-0001.htm

...tps://github.com/jiixyj/libebur128/) - "libebur128 is a library that implements the EBU R 128 standard for loudness normalisation. All source code is licensed under the MIT license"; foobar2000 uses it to calculate ReplayGain values. The use of R128 also raises the question about "REPLAYGAIN_REFERENCE_LOUDNESS" tag. Currently flac/metaflac writes "REPLAYGAIN_REFERENCE_LOUDNESS=89.0 dB" but doesn't use it when decoding (it seems that nothing uses this tag). R128 defines reference level differently, so this tag makes little sense for it. IMHO it's better not to write this tag whe...

...nts the EBU R 128 >> standard for >> loudness normalisation. All source code is licensed under the >> MIT license"; >> foobar2000 uses it to calculate ReplayGain values. >> >> >> >> The use of R128 also raises the question about >> "REPLAYGAIN_REFERENCE_LOUDNESS" >> tag. Currently flac/metaflac writes >> "REPLAYGAIN_REFERENCE_LOUDNESS=89.0 dB" >> but doesn't use it when decoding (it seems that nothing uses >> this tag). >> R128 defines reference level differently, so this tag makes >> little sen...

...channels: 2 bits-per-sample: 16 total samples: 8800596 MD5 signature: 9e471211972413ceb8febcdc77ef9d68 METADATA block #1 type: 4 (VORBIS_COMMENT) is last: false length: 439 vendor string: Lavf57.83.100 comments: 14 comment[0]: REPLAYGAIN_ALGORITHM=ITU-R BS.1770 comment[1]: REPLAYGAIN_REFERENCE_LOUDNESS=-18.00 comment[2]: REPLAYGAIN_TRACK_GAIN=8.53 dB comment[3]: REPLAYGAIN_TRACK_PEAK=0.218024 comment[4]: REPLAYGAIN_ALBUM_GAIN=-0.03 dB comment[5]: REPLAYGAIN_ALBUM_PEAK=0.695334 comment[6]: encoder=Lavf57.83.100 comment[7]: ARTIST=Hirilorn comment[8]: TITLE=Return of...

...block #1 type: 3 (SEEKTABLE) is last: false length: 18 seek points: 1 point 0: sample_number=0, stream_offset=0, frame_samples=4096 METADATA block #2 type: 4 (VORBIS_COMMENT) is last: false length: 223 vendor string: reference libFLAC 1.2.0 20070715 comments: 5 comment[0]: REPLAYGAIN_REFERENCE_LOUDNESS=89.0 dB comment[1]: REPLAYGAIN_TRACK_GAIN=-12.88 dB comment[2]: REPLAYGAIN_TRACK_PEAK=1.00000000 comment[3]: REPLAYGAIN_ALBUM_GAIN=-12.88 dB comment[4]: REPLAYGAIN_ALBUM_PEAK=1.00000000 METADATA block #3 type: 1 (PADDING) is last: true length: 7 $ Regards, Scott

...channels: 2 bits-per-sample: 16 total samples: 8800596 MD5 signature: 9e471211972413ceb8febcdc77ef9d68 METADATA block #1 type: 4 (VORBIS_COMMENT) is last: false length: 439 vendor string: Lavf57.83.100 comments: 14 comment[0]: REPLAYGAIN_ALGORITHM=ITU-R BS.1770 comment[1]: REPLAYGAIN_REFERENCE_LOUDNESS=-18.00 comment[2]: REPLAYGAIN_TRACK_GAIN=8.53 dB comment[3]: REPLAYGAIN_TRACK_PEAK=0.218024 comment[4]: REPLAYGAIN_ALBUM_GAIN=-0.03 dB comment[5]: REPLAYGAIN_ALBUM_PEAK=0.695334 comment[6]: encoder=Lavf57.83.100 comment[7]: ARTIST=Hirilorn comment[8]: TITLE=Return of...

...9;s a good idea. b) According to http://wiki.xiph.org/OggOpus#Comment_Header there should be no REPLAYGAIN_*** tags in Opus files; Opus uses R128_TRACK_GAIN tag. If some audio player reads Opus tags then it should be aware of the difference between ReplayGain and R128. But this doesn't require REPLAYGAIN_REFERENCE_LOUDNESS tag. > While adding the option for R128 gain into metaflac (and/or flac) would > certainly be useful, I consider that scheme to be poorly suited to music > playback. I certainly wouldn't want it to be imposed, or even the default. As > the original, and still far more wides...

If I use flac to encode with the --replay-gain option, I get a warning about the --no-padding option... "NOTE: --replay-gain may leave a small PADDING block even with --no-padding" ...even though I'm not using --no-padding. And the file does end up with a small padding block, so changing tags is slow. I'd fixed this bug in my own copy of flac 1.1.4, but forgot to submit the

...taflac output of the flac file: % metaflac --block-number=2 --list bs.1770/test.flac METADATA block #2 type: 4 (VORBIS_COMMENT) is last: false length: 351 vendor string: reference libFLAC 1.3.0 20130526 comments: 9 comment[0]: REPLAYGAIN_ALGORITHM=ITU-R BS.1770 comment[1]: REPLAYGAIN_REFERENCE_LOUDNESS=-18.00 comment[2]: REPLAYGAIN_TRACK_GAIN=-11.84 dB comment[3]: REPLAYGAIN_TRACK_PEAK=1.220055 comment[4]: REPLAYGAIN_TRACK_RANGE=11.01 dB comment[5]: REPLAYGAIN_ALBUM_GAIN=-11.84 dB comment[6]: REPLAYGAIN_ALBUM_RANGE=11.01 dB comment[7]: REPLAYGAIN_ALBUM_PEAK=1.220...