> > > I'd certainly be interested in the ability to play audio in a way
> > > that avoids resampling altogether,
> >
> > If you have a 48kHz file, and your audio device can only do 44100,
> > then you have to resample, no way around it.
> > > similar to what a user can do on FreeBSD with the
> > > following sysctl tweaks:
> > > # sysctl hw.snd.maxautovchans=0 dev.pcm.0.bitperfect=1
> > It's off topis of course, but What is dev.pcm.%d.bitperfect gonna do
> > if the sample rate (or some other characteristics) is not what the device
> > itself supports? As in e.g. $ play -r 12345 -c 3 -n synth 10
On Jan 10 09:36:28, a...@caoua.org wrote:
> chown <your_user_id> /dev/audio*
> rcctl stop sndiod
After doing that,
$ play -V 48000.wav
play: SoX v14.4.2
play INFO formats: detected file format type `wav'
Input File : '48000.wav'
Channels : 2
Sample Rate : 48000
Precision : 16-bit
Duration : 00:00:25.00 = 1200000 samples ~ 1875 CDDA sectors
File Size : 4.80M
Bit Rate : 1.54M
Sample Encoding: 16-bit Signed Integer PCM
Endian Type : little
Reverse Nibbles: no
Reverse Bits : no
Output File : 'default' (sndio)
Channels : 2
Sample Rate : 48000
Precision : 16-bit
Duration : 00:00:25.00 = 1200000 samples ~ 1875 CDDA sectors
Sample Encoding: 16-bit Signed Integer PCM
Endian Type : little
Reverse Nibbles: no
Reverse Bits : no
play INFO sox: effects chain: input 48000Hz 2 channels
play INFO sox: effects chain: output 48000Hz 2 channels
In:15.4% 00:00:03.84 [00:00:21.16] Out:184kk [ ---=|=--- ] Clip:0
$ play -V 44100.wav
play: SoX v14.4.2
play INFO formats: detected file format type `wav'
Input File : '44100.wav'
Channels : 2
Sample Rate : 44100
Precision : 16-bit
Duration : 00:00:25.00 = 1102500 samples = 1875 CDDA sectors
File Size : 4.41M
Bit Rate : 1.41M
Sample Encoding: 16-bit Signed Integer PCM
Endian Type : little
Reverse Nibbles: no
Reverse Bits : no
Output File : 'default' (sndio)
Channels : 2
Sample Rate : 44100
Precision : 16-bit
Duration : 00:00:25.00 = 1102500 samples = 1875 CDDA sectors
Sample Encoding: 16-bit Signed Integer PCM
Endian Type : little
Reverse Nibbles: no
Reverse Bits : no
play INFO sox: effects chain: input 44100Hz 2 channels
play INFO sox: effects chain: output 44100Hz 2 channels
In:25.3% 00:00:06.32 [00:00:18.68] Out:279kk [ =====|===== ] Clip:0
Aborted.
$ aucat -i 44100.wav
default: unsupported audio params
$ aucat -i 48000.wav
default: unsupported audio params
It seems sox negotiates either 48000 or 44100 with sndio
(meaning the sndio library, not the non-running sndiod) and sends that,
but aucat errors out. But the device itself can do 48000 (says audioctl),
so is that a bug in aucat?
Jan
