It has been reported elsewhere that tuning the kernel module parameter
nrpacks may have an impact on sound quality with EDO when using a usb
dac.

This can be achieved by:

echo NUMBER > /sys/module/snd_usb_audio/parameters/nrpacks

Please note that if you try this tuning parameter there are two things
to look out for:
1) The kernel we use will limit values of nrpacks to between 1 and 20 -
any values larger than 20 will be silently treated as 20
2) This parameter is only read at the time the usb audio device is
created.  With EDO this occurs while the kernel is booting as we need to
have the device available for the squeezeplay application.  I'm not
convinced at present that we can effectively change this parameter with
EDO in operation.  I'll produce a test kernel to check this.


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