[ogg-dev] How to concatenate Ogg in the browser JS?

Ralph Giles giles at thaumas.net
Fri Nov 16 17:02:48 UTC 2018

On 2018-11-16 7:02 a.m., Vitaly Zdanevich wrote:
> AWS Polly produces Oggs with hardcoded serial numbers as zeros.

Your earlier ogginfo post said the file was created by ffmpeg. There was 
a bug like this in ffmpeg, fixed in 2010. I hope they're not using an 
ffmpeg build that old! Or the low-quality 'vorbis' encoder included with 
the ffmpeg source instead of 'libvorbis'.

It's also possible something about their runtime environment is 
providing bad random number seeds. Either way, it's an issue which 
should be reported.

Pity they don't support Opus. It's quite a bit more efficient with speech.


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