Re: [LAU] asoundrc

On 01/04/2016 08:15, Ffanci Silvain wrote:
> Ben Edwards, Apr 1 2016:
> ...
>> I need to use a slave.
> Yes, but I haven't seen it like that, if it works though...
>>
>> Is this correct?
>>
>> pcm_slave.sl3 {
>> pcm "hw:1,0"
>> format S16_LE
>> channels 2
>> rate /44100 /
>> }
>> pcm.complex_convert {
>> type plug
>> slave sl3
>> }
> Don't put the slashes around your sample rate. I'd normally put all
> the sl3 code inside your complex_converter, where you said:
> slave sl3
> I would have written:
> slave {
> pcm "hw:1,0,0"
> ...
> }

So made ~/.asoundrc

    pcm_slave.sl3 {
        pcm "hw:1,0"
        channels 2
        rate 44100
    }

    pcm.complex_convert {
        type plug
        format S16_LE
        slave sl3
    }

but got

    pi@email-addr-hidden:~ $ arecord -t wav -r 44100 -c 2 -f S16_LE -D
    complex_convert mon.wav
    ALSA lib pcm_plug.c:1261:(_snd_pcm_plug_open) Unknown field format
    arecord: main:722: audio open error: Invalid argument

;(.

| Not sure exactly what S16_LE. Cant find a list of the formats. Or is
this the format of the card, not the format I want.
> S16_LE = signed 16bit Little Endian, which is what you want. Take a
> look at the manpage for arecord:
> man arecord
> then search for s16_le:
> /s16_le
> you will come to a full list of accepted bit depth/sample formats of
> ALSA.
>>
>> Not against using jack but only if I have to. It seems more complex
>> and I am very new to al this.
> If you have to work with the asoundrc, JACK will be easier on every
> modern system, that I know off. It will take care of different bit
> depth automatically. Maybe give it a try at some point. If you like
> graphical user interfaces qjackctl is a good companion to look at
> connections and/or make them yourself.

Its headless but I could ssh -X I guess. Ime just trying to get it to
work/take the path or least resistance. Don't mind taking a couple of
hours working this out but I do find the documentation for Linux stuff
makes my head spin, and I worked in It for over 15 years. Ime
basically now a creative, I do video production mainly. figured if I
could do it without installing extra framework that would be good. I
help at a local volunteer run venue/performance space,
http://cubecinema.com/ (Server offline currently as it is hosted onside
and power is down due to electrics needing total overall). This is what
i am trying to sort out this stuff for and trying to find time to do
it. OK, ime a bit lazy, my boss when I did IT said this was a good
thing, it means you try to find the easiest way of doing stuff;). I
wish I had a day or too to work fully through docs but its difficult to
find the time.

Regards,
Ben

> ...
>
> Ta-ta
> ----
> Ffanci
> * Homepage: https://freeshell.de/~silvain
> * Twitter: http://twitter.com/ffanci_silvain
> * GitHub: https://github.com/fsilvain

-- 
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Received on Fri Apr 1 16:15:01 2016