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Length error on low-bitrate #31

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dofuuz opened this issue Apr 15, 2025 · 2 comments
Open

Length error on low-bitrate #31

dofuuz opened this issue Apr 15, 2025 · 2 comments
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dofuuz commented Apr 15, 2025

speex_length_bug.zip

To reproduce,

speexenc --bitrate 12000 10744.wav 10744.spx
speexdec 10744.spx 10744_decoded.wav

Original wav has 84651 samples, but decoded wav has 84811 samples.

It does not happen when --bitrate 15000.

I checked that both WB and UWB mode has same problem.

Is this bug, or normal behavior?
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tmatth commented Apr 16, 2025

Interesting, I'm looking into it.

@tmatth tmatth self-assigned this Apr 16, 2025
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tmatth commented Apr 17, 2025

@rillian pointed out the fact that there's a 160 sample difference may give some hints here.

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