Subject: RE: [AVT] precise synchronization

From: "Boatright, Robert" <[email-masked]>
Date: Thu, 26 Oct 2006 07:42:57 -0600

John Lazzaro wrote:
> -----Original Message-----
> From: lazzaro [mailto:[email-masked]] 
> Sent: Wednesday, October 25, 2006 9:32 PM
> To: [email-masked]
> Cc: lazzaro
> Subject: [AVT] Re: avt Digest, Vol 30, Issue 23
>
> ...
> All the mics are picking up the sound of every drum a little bit ...
> and so you really want the audio as tightly synchronized as possible,
> down to the audio sample if you can (@96 kHz, we're talking  
> microseconds).
> ... 

To complete with legacy analog quality, pro audio networks must preserve
both sample and intra-sample coherency for both sources and sinks. At 96
kHz, an audio sample is already ~10 uS. To drive down latency, 192 kHz
apps are becoming more common - that means a sample rate of ~5 uS. Pro
audio needs sub-microsecond synchronization for digital audio networks.

--------------------------------------------
Robert Boatright - Harman Pro
rboatright at harman dot com
--------------------------------------------

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