I used cbr and other 7.1ch files and the results are the same. You mean the clipping of the output PCM? Anyway, enjoy the patch, I'm not sure I'll have time to work on a more permanent (one that I'd push to trunk) one till next weekend. http://ffmpeg.org/pipermail/ffmpeg-devel/2013-May/143216.html Ouch, I forgot a file. Anyone knows what's faac's rationale? The sound is the intro of Fatboy Slim - Kalifornia. Stack Overflow for Teams is a private, secure spot for you and The S/N was significantly better on all L, R, M, and S, and the difference was more pronounced on the tonal tracks than the transient blocks. Right now, the implementation is just a POC. Just doing some regression ABX testing, since the objective (PSNR) A/B script pointed out some seemingly significant regressions (until now I couldn't confirm anyone with ABX but I'm not done testing yet). I'm close to posting v9b, hopefully a version that can be sliced and committed (if v7 was acceptable v9b should be as well). rev 2020.11.13.38000, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide. ABR with -aac_coder anmr I have tested 75156-gfd8b90f. Thanks, nice to know someone's using the encoder. Detailed information about the FDK AAC library (not FFmpeg specific) can be found at HydrogenAudio Knowledgebase: Fraunhofer FDK AAC. I have some nice improvements for VBR half-baked, just making sure there are no regressions. I'll try again when I have a chance though. Anyway, looking forward to hearing about the results of those tests. See /usr/share/doc/ffmpeg/README.Debian.gz. Stream #0.0: Video: mpeg4, yuv420p, 320×240 [PAR 1:1 DAR 4:3], I started a blind listening test of -c:a aac and -c:a libfdk_aac at 64k, 96k, and 128kbps. That's a different (harder) problem. Other than that, @klaussfreire, if the patch was to be applied to master, you could split this patch to at least two patches. Can the infinite loop problem on the git head be solved? It's a problem, hopefully fixed in the next v6 patch. Now the faad decode and the low bitrate encodes above are properly working on x86. Patience. FFmpeg native aac encoder outputs horrible sound around 256kbps or more on particular samples. I noticed that same -q:a results in almost half of the size of the -q:a in v4. Did it improve? Could you describe in that example what you feel is inferior compared to abr? Also, "-aac_ms" is not boolean as indicated but can be set to '-1' which means it will be automatically used when there will be an encoding gain. The encoded versions I mean, not the differences. @Kamedo2 Just to make sure, the problem described in your recent edit to GuidelinesHighQualityAudio is fixed in v8g, right? Fixes CID1257803, CID1257797, CID1257789, CID1257786, Actually no, since swb_size_1024/128 contain 13 elements each, so any value above 12 will trigger the OR conditions.
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