[LAU] Jack "Force 16 bit"

Moshe Werner moshwe at gmail.com
Wed Jul 27 16:11:00 UTC 2011


Thanks for the quick reply!

Do you have any idea why before I configured Jack with force 16 bit I had
distorted sound when playing back audio in ardour?
Now I'm trying to use rosegarden and got the same problem, but now with
MIDI.
I'm a bit lost here.

On Wed, Jul 27, 2011 at 2:58 PM, Arnold Krille <arnold at arnoldarts.de> wrote:

> Hi,
>
> On Wednesday 27 July 2011 12:42:48 Moshe Werner wrote:
> > I thought I'll try some different settings within Jack, so I set the
> "Force
> > 16 bit" parameter in Jack, while Ardour is still set to "Sample
> Format"=32
> > bit floating point.
> > Now the distortion is gone but I don't know if it was the right thing to
> > do. Anyone knows why this helped me? And more than this, did I do the
> > right thing or have I done something really stupid...
>
> Ardour and jack will always communicate their audio via float (that is
> 32bit
> real numbers). As only very few devices implement that, most devices are
> talked to in integer-numbers. The newer ones are capable of doing 24bit
> integers, some older ones are fixed to 16bit integers. So forcing jack to
> talk
> to the audio-device in 16bit might give you lower quality during playback
> and
> recording but it will not affect the internal quality of the sound
> processing
> done inside jack and ardour and all the apps. And files exported from
> ardour
> will also not be affected by that jack-setting.
>
> Arnold
>
> _______________________________________________
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> Linux-audio-user at lists.linuxaudio.org
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>
>
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