Re: Output sample rate

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>> I changed my config like so and restarted alsasound with the same
>> results:
>>
>> .asoundrc:
>>
>> pcm.usb-audio {
>>         type hw
>>         card 0
>>         }
>> pcm.usb-audio_44 {
>>         type plug
>>         slave {
>>                 pcm usb-audio
>>                 rate 44100
>>                 }
>>         }
>>
>> mpd.conf:
>>
>> audio_output {
>>         type                    "alsa"
>>         name                    "USB Monica"
>>         device                  "usb_audio_44"
>> }
>>
>> I also tried .asoundrc with usb_audio instead of usb-audio and
>> mpd.conf with:
>>
>> type "usb-audio_44"
>>
>> Do you see the problem?
>
> If you name the plug usb-audio_44 then your mpd.conf device has to match
> (not usb_audio_44, but usb-audio_44).
>
> First make sure you get sound when you play to the non-plug device
> (usb-audio).

I don't get sound from usb-audio, making sure the name matches.  Could
the .asoundrc syntax be wrong there?

- Grant


> Then set up a plug for 48k as well and if you get sound with the 48k
> plug and not the 44.1k plug then you know that your device either
> cannot hardware clock at 44.1k, or isn't set to clock at 44.1kHz.
>
> If it doesn't work with either plug then maybe the syntax I use isn't
> quite correct for your alsa version.
>
> You can also use better sample rate conversion
> with 'pcm.rate_converter "samplerate_best"'. I've tries this as a
> default in asoundrc (defaults.pcm.rate_converter "samplerate_best") and
> can clearly hear a difference when I allow alsa to rate convert, but it
> doesn't play well with streaming media, maybe it can be put in a plug
> as well, haven't tried that yet.
>
> --
> Chris

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