Output latency

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Hi all,

can anyone give me an explanation why the blocking delay of a soundcard appears twice using the ALSA driver ? E.g. with 48 kHz at 128 samles / frame I understand that the capturing process requires 2,6 ms to actually fill one block of audio samples (= blocking delay of 2,6 ms).

However, so far I havn't understood why the devices requires another 2,6 ms latency for the playout : If a captured buffer of 128 sampels is already there why can't the device use each of its samples successively and play it out directly ?

Thanks in advance for clarification

-- A l e x

-- 
Alexander Carôt
Email : Alexander@xxxxxxxx
Tel.: +49 (0)177 5719797



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