On Tue, Nov 24, 2009 at 10:15:05AM +0100, Florian Faber wrote: > >> So I will plug this into my ethernet and have < 1ms latency? :) > > Given the fact that AD/DA converters introduce more then one ms latency(*) > > already: No. > > That depends on the converter and the sample frequency. Fast converters > can go as low as 5 samples conversion latency. It's not the AD/DA conversion that introduces most of the delay. At 44.1 or 48 kHz the antialiasing filters are the main cause of delay. A linear phase filter with a transition band of 1khz (e.g. unity gain up to 21 kHz and near zero at 22 kHz) must have a delay of around 1/1kHz or 1 ms. Short delays are possible at 96 kHz, where you can have full gain up to say 28 kHz going down to zero at 48 kHz. That's a range of 20 kHz, corresponding to 0.05 ms. It's one of the few advantages of higher sample rates (but only if you don't use the full band- width). Ciao, -- FA Io lo dico sempre: l'Italia è troppo stretta e lunga. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
