[flac-dev] Support for ultra-high sample rates?

Tor-Einar Jarnbjo tor-einar at jarnbjo.name
Thu Jun 25 13:06:23 UTC 2020


Isn't the FLAC encoder 'tuned' for the compression of audio data at 
common sample rates anyway? Does it make sense to use FLAC to compress 
arbitrary analog data at very high sample rates as opposed to other 
general purpose compression algorithms?

Tor

Am 25.06.2020 um 14:49 schrieb Martijn van Beurden:
> Op di 2 jun. 2020 om 05:59 schreef Con Kolivas <kernel at kolivas.org 
> <mailto:kernel at kolivas.org>>:
>
>     It would be nice if the flac container was
>     extensible to any arbitrary value for research purposes.
>
>
> Probably not the answer that you were hoping for, but because it is 
> only for research purposes, why not store the samplerate outside of 
> the container, or in the comments as metadata? The FLAC encoder 
> doesn't care what samplerate your material is, it just stores it for 
> easy playback. You can store 10MHz information, tell the FLAC encoder 
> it is 48kHz, and add a tag samplerate=10000000  or even 
> samplerate=10MHz, whatever your processing scripts accept.
>
> As you are clearly using FLAC for something it wasn't made for, that 
> doesn't seem like a very big workaround to me?
>
> Kind regards,
>
> Martijn van Beurden
>
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