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Other Lossy Codecs / Re: exhale - Open Source USAC encoder
Last post by C.R.Helmrich -AiZ, do the FFmpeg decoding glitches disappear when you use a lower preset? That may hint at the cause of that issue.
2012, that's interesting! Indeed, coding anything beyond 20 kHz is kind of silly, so I activated full-bandwidth coding only with preset 9 (after all, some may expect full audio bandwidth from a preset claiming "archival quality").
Note, though, that I added some fine-tunings going beyond simply pumping more bits into the encodings. Also, only very very few coding bits are actually spent above 20 kHz. You can verify that by looking at the spectrograms of the decoded - original difference waveforms.
Some more results from my side: current bitrate peak with HA sample Closer to God (edit), ca. 353 kbps with high-rate preset 9. Will update this post later.
Chris