wavpack (export) support?

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wavpack (export) support?

Permanent link to this post Posted by ledestin » Thu Feb 23, 2017 10:16 am

importing wavpacks with audacity is working fine, but is it also possible to export to .wv?
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Re: wavpack (export) support?

Permanent link to this post Posted by steve » Thu Feb 23, 2017 11:32 am

Depending on your build of FFmpeg, it may be possible to export as wavepack by using "Custom FFmpeg Export Options". See: http://manual.audacityteam.org/man/cust ... tions.html

I'm using the default Debian 8 version of FFmpeg, and wavepack export is not supported here. You may have better luck with less "free" distributions such as Ubuntu, or you could try building FFmpeg from sourcecode (be careful if you do that, it's easy to break other audio applications if you have conflicting dependencies).
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Re: wavpack (export) support?

Permanent link to this post Posted by ledestin » Thu Feb 23, 2017 12:31 pm

it works. thank you.

however, when i export a 32bit float wave as wavpack (raw backup), the resulting wv property only shows 16bit unlike wavpack encoded 32bit float exports? isnt there way to preserve the rawfile specs entirely?
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Re: wavpack (export) support?

Permanent link to this post Posted by steve » Thu Feb 23, 2017 12:47 pm

If you have a command-line Wavepack encoder installed, then you could use Audacity's "Exporting to an External Program" option: http://manual.audacityteam.org/man/expo ... ogram.html
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Re: wavpack (export) support?

Permanent link to this post Posted by ledestin » Fri Feb 24, 2017 12:07 pm

steve wrote:If you have a command-line Wavepack encoder installed

sure, i have it installed. but i am struggeling with the wavpack commandline to get it working properly in audacity.

has anyone succeeded in doing so?
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Re: wavpack (export) support?

Permanent link to this post Posted by steve » Fri Feb 24, 2017 3:36 pm

On further digging it seems this isn't going to work.
The "external program" option uses STDIN which is limited to 16-bit.
It looks like the only option available for 32-bit float wavpack is to export from Audacity as 32-bit float WAV (or AIFF) and then use another application (such as the wavpack CLI encoder) to convert to WV.
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Re: wavpack (export) support?

Permanent link to this post Posted by ledestin » Fri Feb 24, 2017 4:15 pm

ok, i see. is there plans to integrate wavpack and make it avaiable in audacity in the near future?

or is there an alternative codec that will preserve 32bit float wave specs at the moment?
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Re: wavpack (export) support?

Permanent link to this post Posted by steve » Fri Feb 24, 2017 6:18 pm

ledestin wrote: is there plans to integrate wavpack and make it avaiable in audacity in the near future?

Not that I'm aware of.
ledestin wrote:or is there an alternative codec that will preserve 32bit float wave specs at the moment?

Just the uncompressed formats, though FLAC supports 24-bit, which is still better quality than any sound card or hi-fi.
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Re: wavpack (export) support?

Permanent link to this post Posted by ledestin » Sat Feb 25, 2017 1:15 pm

ok, thank you.
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