[opus] Antw: [EXT] Glitch in the ope_encoder_drain();

[Tristan Matthews]

On Thu, Jun 9, 2022 at 5:23 AM Ulrich Windl <
Ulrich.Windl at rz.uni-regensburg.de> wrote:

> >>> m b <mvetnk at email.com> schrieb am 09.06.2022 um 11:02 in Nachricht
>
> <trinity-ac212bc6-5632-4a70-98a5-65076eac5566-1654765371074 at 3c-app-mailcom-lxa02
> :
> > I found there is some text information at the end of the wave file, that
> > caused the cracking sound in the opus file, now after proper processing
> the
> > raw data, the problem is sovled. Thank you Ulrich for your help!
>
> Glad that my initial suspect was correct ;-)
>

We had the same bug in speexenc some time ago, for WAV files with comments
at the end you'd hear an audible glitch.

Here's the relevant fix in case it's useful to anyone:
https://gitlab.xiph.org/xiph/speex/-/commit/566a73a6c1e28c13979f26732e55c4f3629689e8


Best,
-t


>
> > Sent: Tuesday, June 07, 2022 at 6:30 PMFrom: "Ulrich Windl"
> > <Ulrich.Windl at rz.uni-regensburg.de>To: mvetnk at email.comSubject: Re:
> Antw:
> > [EXT] [opus] Glitch in the ope_encoder_drain();
> >>>> m b <mvetnk at email.com> schrieb am 07.06.2022 um 11:25 in
> >
> Nachricht<trinity-c4b70144-339f-4410-9570-6d06a273a3c9-1654593936399 at 3c-app-m
> > ailcom-lxa10:> ALL the end part of the WAVE is audio raw data, and the
> end of
> > the decoded> Opus is cracking sound. Thank you!Well, I expected the WAV
> to be
> > RAW data; what I wanted to know or see is whether the last sample is at
> zero.>
> > Sent: Tuesday, June 07, 2022 at 2:37 PMFrom: "Ulrich Windl">
> > <Ulrich.Windl at rz.uni-regensburg.de>To: mvetnk at email.com,
> opus at xiph.orgSubject:>
> > Antw: [EXT] [opus] Glitch in the ope_encoder_drain();> How does the end
> of
> > your WAV look like, and how does the end of the decoded> Opus look
> like?(Maybe
> > you can show waveform displays)
>
>
>
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