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On Wednesday 01 December 2010 01:11:18 Alex Fiestas wrote:
> This is my list of needs:
> 2-Low latency easy concurrency
>      The time between the "play" function in our application and when
> the sound actually play is important for a lot of applications (KNotify
> for instance), we need to ensure the lower latency possible. Also we
> need to provide an easy way to play more than one sound in parallel
> (KNotify as app example again).

No, neither knotify nor multimedia players nor games or webcam-apps need lo=
w-
latency.

Of course they need a rather short time between api-call and actual playing.
But low-latency is the stuff where the time from soundcard_in-
>processing_in_cpu->soundcard_out takes less then 10ms. If you really need=
=20
this, use jack (www.jackaudio.org) natively and drop any layers between.

What you need is a framework that plays files/media, regardless whether its=
=20
wav, mp3, ogg, flac, mp4, avi, wmv or flv. You also want easy access to web=
cam=20
and soundcard io to allow for phonon to be used in more cases then media=20
players.
But all that doesn't need latencies of 10ms or less. It will all be perfect=
ly=20
well with latencies of 100ms. And you gain a lot in simplicity when you don=
't=20
have to deal with low-latency...

Have fun,

Arnold

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