On 22.4.2013 10:31, Pietro Cipriano wrote:

Il 22/04/2013 09:40, Pavel Hofman ha scritto:

...

On 20.4.2013 22:15, Daniel Mack wrote:

...

On 13.02.2013 18:11, Antonio Ospite wrote:

...

Add driver for M2Tech hiFace USB-SPDIF interface and compatible devices.

M2Tech hiFace and compatible devices offer a Hi-End S/PDIF Output Interface, see http://www.m2tech.biz/hiface.html

Just curious: is there a new version of this patch set coming?

I have read users report large latencies (unable to watch movies) of hiFace1 in OSX while reportedly they have not identified any major latency in windows. Perhaps the fixed PCM_PACKET_SIZE

The issue is related to a no controllable buffer dimension, which depends by Audio Core thus present only on OSx. A easy workaround is of to set up a higher output sampling frequency, for instance at 192KHz the delay is no more perceptible, obviously the DAC must be compliant with this setting.

Pietro

Thanks for very fast reponse. So is it possible to reduce the period size in the linux driver? Right now if I calculate correctly it is 4096 bytes / 32bits / 2 channels / 48000 Hz = 10 ms.

Thanks,

Pavel.