Re: [RE] Compatibility with 802 and why the study group is not yet a task force
At 08:50 12/04/2005 +0100, Arthur Marris wrote:
[snip]
>iii) You need to come up with a quantitative requirement for jitter and
>relative latency and justify it. I saw the figure of 10us mentioned on
>the Yahoo mailing list. This is ridiculously tight. An 802.3 voter who
>is experienced in VOIP pointed out to me that even 1ms is too tight when
>you consider that sound only travels one foot in a millisecond. Once you
>have this requirement nailed a lot else will fall into place.
However, the requirements for
(a) performers listening over headphones to a mix that includes their own voice and
(b) forming a stereo or surround image from speakers that are individually (and independently) connected to the network
are more stringent than those for voice telephony.
John Grant
___ ___ ___ ___ ___ ___ ___ ___ ___
| || || || | | || || || || |
| N || i || n || e | | T || i || l || e || s |
|___||___||___||___| |___||___||___||___||___|
Nine Tiles Networks Ltd, Cambridge, England
+44 1223 862599 and +44 1223 511455
http://www.ninetiles.com