[haiku-bugs] Re: [Haiku] #9438: Mixer not resampling very well
- From: "jua" <trac@xxxxxxxxxxxx>
- Date: Wed, 10 Feb 2016 00:55:21 -0000
#9438: Mixer not resampling very well
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Reporter: Pete | Owner: nobody
Type: bug | Status: reopened
Priority: normal | Milestone: R1
Component: Add-Ons/Media/Mixer | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking: 9704
Has a Patch: 0 | Platform: All
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Comment (by jua):
but most audio apps (not only Haiku ones) out there are expecting float
to be the native format
I guess you mean DAWs and such, which support complex signal processing
chains, so that they indeed use float/double/etc formats internally to
avoid unnecessary losses along the chain. That's most certainly useful.
However, an even more common audio application is playback: play an
mp3/wav/flac/etc file from disk. In that case, the samples will generally
be integer-based. And as said on the ML, sound cards expect integers too.
If you introduce a conversion to float and back to int anywhere between
the file and the sound card, you degrade the playback quality. Sure, most
people won't care (enthusiasts do). But since unnecessary conversions are,
well, unnecessary, and easily avoided, I think we should not add
preventable signal degradation. (Assuming the case that no resampling is
needed here.)
we can still add a field in the mixer settings to change the internal
format to something different than float
Being able to just connect any format to the mixer and make it
automatically choose the best is a simpler (for the user!) and nicer
solution. It would be annoying for users to have to switch this back and
forth.
--
Ticket URL: <
https://dev.haiku-os.org/ticket/9438#comment:20>
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