[LAU] Google TV device w/ AV out

[Patrick Shirkey]

On Mon, July 1, 2013 10:00 pm, Jeremy Jongepier wrote:
> On 07/01/2013 01:50 PM, Patrick Shirkey wrote:
>> This reminded me that if the audio device is communicating over the usb
>> bus it should perform better if the sample rate is divisible by the
>> period
>> size.
>>
>> So if you use 48000 try a period size of -p48 or -p96, etc...
>>
>> Another possible assist is documented here:
>>
>> http://alsa.opensrc.org/Usb-audio#Tuning_USB_devices_for_minimal_latencies
>
> http://lists.linuxaudio.org/pipermail/linux-audio-user/2010-January/066765.html
>


IIUC the potential issues with period sizes with non powers of two are at
the application level. JACK is agnostic about it.

Anyway it's a little spooky that you get better performance with -p64 than
-p128 even in playback only mode.




--
Patrick Shirkey
Boost Hardware Ltd