I have an Intel device that provides a sample rate only of 44100, but I want
to record a stream at 8000. The hardware device is: hw:0,0,0.
As far as I can tell, this is "easily" doable with a plugin, but I haven't
been able to make it work (this is the first time I've tried to use a plugin).
After a lot of messing around, my .asoundrc file currently looks like this:
--------
pcm.!default {
type hw
card 0
device 0
subdevice 0
}
ctl.!default {
type hw
card 0
device 0
subdevice 0
}
pcm_slave.rate_converter {
pcm default
}
pcm.rate8000 {
type plug
slave {
pcm rate_converter
rate 8000
}
}
-------
and when I try to use this, I get:
n7dr@shack20:~$ arecord -c 2 -d 10 -vvv -D rate8000 -f S16_LE q8000.wav
│ALSA lib
pcm.c:2565:(snd_pcm_open_noupdate) Unknown PCM rate_converter
│arecord: main:828: audio open error: No
such file or directory
n7dr@shack20:~$
I suspect a simple error in the .asoundrc. I hope.
I've tried a lot of variations, attempting to follow examples of plugin use on
various web pages [at least some of which I suspect are out of date], but they
all give errors, so I decided that the best way to get this working is to ask
for help somewhere where people who really understand this stuff hang out :-)
Doc
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