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Hello. Me again. Have you tried to encode piano solo? Noticed high bitrate Opus gave? And there's also artefact at 15kHz which wasn't in the original audio. Visible with Spek program. Download FLAC and Opus both files, new link: http://www.filedropper.com/example_3 FLAC full: 1084 kbps; FLAC solo: 465 kbps. with --bitrate 160: Opus full: 158 kbps; Opus solo: 190 kbps. Included also Spek

using iTunes i've noticed that AAC is very good at re-encoding own lossy sound. let's test Opus! neroaacenc.exe -q 0.75 -if 000.wav -of 001.m4a neroaacdec.exe -if 001.m4a -of aac001.wav wavdiff.exe 000.wav aac001.wav Comparing 000.wav - aac001.wav... Max diff: -17.3867dB RMS diff: -33.0851dB Mean diff: -32.4582dB opusenc.exe --bitrate 512 "000.wav" 001.opus opusdec.exe 001.opus

On 7 Nov 2017 13:36, Lucas Clemente Vella <lvella at gmail.com> wrote: 2017-11-07 11:10 GMT-02:00 encrupted anonymous <sergeinakamoto at gmail.com<mailto:sergeinakamoto at gmail.com>>: did another test of many. NeroAAC q=1 @400kbps and Vorbis q=10 @412kbps shared 2nd place. OPUS @330 kbps - 3rd place. LAME MP3 q=0 @320 kbps - 1st place. ---JPEG file attached--- Please disable speech synthezation in OPUS for 96 kbps and...

On Fri, Nov 16, 2018 at 7:40 PM ongaku zettai <sergeinakamoto at gmail.com> wrote: > Hello. > i have over 30GB of Opus music and noticed that > solo instrumentals and solo vocals uses more bitrate > than full-mixes. > Here's example where Opus 1.3 used 190 kbps for > piano solo and 159 kbps for full-mix. > (--bitrate 160 --music)...

Hello! Trying to compile, build, install and run Opus. My config: Ubuntu console (Windows 10 app). First problem, configure says openssl is missing. My system says that i have openssl already. Which openssl does it need? Using aptitude, i've installed everything with openssl name in it. That's tons of files and gigabytes of data. But it worked somehow. Second problem, flac-1.3.2 -

did another test of many. NeroAAC q=1 @400kbps and Vorbis q=10 @412kbps shared 2nd place. OPUS @330 kbps - 3rd place. LAME MP3 q=0 @320 kbps - 1st place. ---JPEG file attached--- Please disable speech synthezation in OPUS for 96 kbps and up. I don't want my music sound like from a phone speaker! Or what is the problem? Modern codec at high bitrates should produce nearly bit-exact sound, not

Opus is specifically designed to survive tandeming but you need to keep the frames aligned and not mess with the gain, which your tools probably do not do. On Thu, Nov 16, 2017 at 10:58 PM, encrupted anonymous < sergeinakamoto at gmail.com> wrote: > using iTunes i've noticed that AAC is > very good at re-encoding own lossy sound. > let's test Opus! > > neroaacenc.exe -q 0.75 -if 000.wav -of 001.m4a > neroaacdec.exe -if 001.m4a -of aac001.wav > wavdiff.exe 000.wav aac001.wav > Comparing...

help compiling Opus! i'm stuck at opusfile. configure says i don't have openssl package installed but Debian 9.4 thinks i do. this Debian only have Opus 1.2-alpha2 package, so i need to compile Opus by myself. seems even Debian developers having trouble compiling latest versions of Opus, what chances do i have to succeed? -------------- next part -------------- An HTML attachment was

On Nov 17 20:37:21, sergeinakamoto at gmail.com wrote: > Hello. Me again. > Have you tried to encode piano solo? > Noticed high bitrate Opus gave? > Download FLAC and Opus both files, > new link: > http://www.filedropper.com/example_3 > FLAC full: 1084 kbps; > FLAC solo: 465 kbps. > with --bitrate 160: &gt...

Good morning. I've ran a test against MP3 format. Code: (first convert tested audio file to 16 bit 48khz with sox.exe if needed) lame.exe -b 320 48khzfilein.wav -o fileout.mp3 lame --decode fileout.mp3 -o fileout.mp3.wav opusenc.exe --bitrate 320 48khzfilein.wav fileout.opus opusdec.exe fileout.opus fileout.opus.wav wavdiff.exe 48khzfilein.wav fileout.mp3.wav -diff fileout.mp3.delta.wav

1) thanks, i've installed libssl1.0-dev and compling process continued. 2) compiled opus passing --disable-shared to configure b/c shared cannot find library (i'm new to Linux) 3) compiled opus 1.3-beta-40 successfully! it is faster than 32 bit Windows version! -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello. i have over 30GB of Opus music and noticed that solo instrumentals and solo vocals uses more bitrate than full-mixes. Here's example where Opus 1.3 used 190 kbps for piano solo and 159 kbps for full-mix. (--bitrate 160 --music) Download example piano solo 15MB: https://mega.nz/#!wLBz3AZT!YmqQMkAGqc4kGHumNWZAfB7Cmcf4vFlHpT6IiiAVCNA FLAC uses 2 times less bitrate for solo than full-mix

tracked down the spectogram atrefact source; it comes from the resampler. so it's not really a bug, just a nuisance. let's hope in the future Opus will be able to save bitrate on simple audio parts as all other lossy and lossless codecs do. i think opus decreasing bitrate only when it thinks that audio is too complex for human to hear difference. that's a bad attitude.

> Message: 4 > Date: Sat, 17 Nov 2018 18:43:40 -0800 > From: "Timothy B. Terriberry" <tterribe at xiph.org> > To: opus at xiph.org > Subject: Re: [opus] Impossible two bugs in Opus > > ongaku zettai wrote: > > i think opus decreasing bitrate only when it thinks that audio > > is too complex for human to hear difference. that's a bad attitude.