5 Jan
2022
5 Jan
'22
9:57 p.m.
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(a)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(a)parkellipsen.de> wrote:
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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(a)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
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