[LAU] JACK doesn't play nicely with integrated Tiger Lake sound card (sound distorted)

[David W. Jones]

We have three Intel-based laptops of various vintages, from a year old to 15 years old. Their built-in Intel audio hardware's native rate is 48Khz.

I've played 44.1Khz CD audio on all three, via Pulse or JACK, without any distortion.

On January 5, 2022 9:55:36 AM HST, Paul Davis <paul at linuxaudiosystems.com> wrote:
> ALSA will never allow the "wrong" format to be delivered to the device.
> 
> If you select a format the device does not support, ALSA will not
> allow the device configuration step to succeed.
> 
> If the device lies about what formats it supports, well, that's a
> different issue.
> 
> On Wed, Jan 5, 2022 at 12:39 PM <nik at parkellipsen.de> wrote:
> >
> > Well, that was just an example ... but I've played around with intentionally using
> > the "wrong" sample format to make noise music, and it sounds very similar.
> >
> >
> > Paul Davis wrote on 05.01.2022 20:08 (GMT +01:00):
> > > there are almost no audio interfaces that accept F32, let alone require
> > > it.
> > >
> > > On Wed, Jan 5, 2022 at 11:27 AM <nik at parkellipsen.de> wrote:
> > > >
> > > > Yes, that was a typo. It was meant to be 44100.
> > > >
> > > > The codec supports that rate.
> > > >
> > > > But I think it's more about the sample format than the sample rate.
> > > > It really sounds like the card expects F32 but is sent S16_LE, and vice
> > > versa.
> > > >
> > > > Best,
> > > > n
> > > >
> > > >
> > > > Michael Jarosch wrote on 05.01.2022 11:00 (GMT +01:00):
> > > > > Am 05.01.22 um 10:34 schrieb nik at parkellipsen.de:
> > > > > > My typical start options are - jackd -P98 -dalsa -dhw:0 -r44000
> > > -p512
> > > > > -n5
> > > > >
> > > > > That's a typo, right? ;)
> > > > > (44000 instead of 44100)
> > > > >
> > > > > My experience is that modern audio devices work better with a
> > > samplerate
> > > > > of 48000 Hz. Some of them don't even sync to 44100. My ten year old
> > > T410
> > > > > does, fortunately:
> > > > >
> > > > > $ cat /proc/asound/card0/codec#0 |grep rates
> > > > > rates [0x160]: 44100 48000 96000
> > > > > rates [0x560]: 44100 48000 96000 192000
> > > > > rates [0x560]: 44100 48000 96000 192000
> > > > > rates [0x160]: 44100 48000 96000
> > > > > rates [0x160]: 44100 48000 96000
> > > > > rates [0x160]: 44100 48000 96000
> > > > > rates [0x160]: 44100 48000 96000
> > > > > rates [0x160]: 44100 48000 96000
> > > > >
> > > > > Also, n seems high to me. I usually start with lower numbers and
> > > rather
> > > > > play with the periods.
> > > > >
> > > > > greets!
> > > > > Mitsch


---
David W. Jones
gnome at hawaii.rr.com
exploring the landscape of god
http://dancingtreefrog.com

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