Bill,
Why is delay such a problem in this application? Sure there are
applications where delay is important. But since 125ms is not really
noticeable, unless you are listening to the source, why worry?
Just looking at the mathematics, there are some transforms that can take
a while. A static crash for example take a little while to realize what
it is, subtract it out and then play the audio. And then take a couple
of other algorithms to clear up other interference sources, it can just
take a while to figure out what you are processing. Note than much of
this is not dependent on the mathematics, just the time to realize that
something is happening.
Heck, just transceiver turn-around can approach 125ms.
Ed WA4YIH
toggle quoted message
Show quoted text
-----Original Message-----
From: baranger1@... [mailto:baranger1@...]
Sent: Saturday, May 26, 2001 1:16 PM
To: FT817@...
Subject: [FT817] Re: ADSP and sidetone problems
Wow!
I know from all of my pro audio gear that one of the bigest problems
with DSP gear is latency.
125ms delay is very,very poor.
The goal of most DSP makers is to have it under 10ms. The best is 2 to 5
ms.
Much over 10ms you will feel the delay. Some cheaper music gear comes in
at 50ms.
Each ms of delay equals one foot of distance between you and the
speaker.
At 125ms you are sending with your speaker 125 feet away from you.
I am sure they were hoping no one would ever hear their unit in real
time, like pass a sidetone thru it!
They need to go back and take another look.
73,
Bill W9WCR
Yahoo! Groups Sponsor
<
8:N/A=616083/R=2/*http:/store.yahoo.com/cgi-bin/clink?ydomains+merchant-
ad:dmad/M=201621.1431180.3015684.2/D=egroupmail/S=1700063108:N/A=616083/
R=3/990897339+>
<
8:N/A=616083/R=4/*http:/store.yahoo.com/cgi-bin/clink?ydomains+merchant-
ad:dmad/M=201621.1431180.3015684.2/D=egroupmail/S=1700063108:N/A=616083/
R=5/990897339+>
www.
<
S=1700063108:N/A=616083/rand=760740538>
To unsubscribe from this group, send an email to:
FT817-unsubscribe@... and for a great FAQ ( Frequently Asked
Questions ) see
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service
<> .
