[digitalradio] Digital voice CODECS

2006-10-09 Thread Andrew O'Brien
I was copying Gerhard OE3GBB on Sunday when he switched from MELP to 
another  codec to help a person that could not use MELP.  The non-MELP 
codec was no where near as good as MELP but still quite good.  I did 
not notice if it took less SNR but will play around today with the 
different codecs.


  
 I was thinking about this today Ed. I'd sacrifice a bit of voice 
qaulity for 
 better SNR performance.
 
 WinDRM defaults to the MELP codec and I was wondering if the SPEEX 
or LP-10 
 offer an improvement in SNR performance?
 
 Tony KT2Q








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Re: [digitalradio] Digital voice CODECS

2006-10-09 Thread Tony
Roger Andy... 

I intend to do the same. I'm QRV on 14236.0 at 1445z

Tony KT2Q


- Original Message - 
From: Andrew O'Brien [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Monday, October 09, 2006 8:08 AM
Subject: [digitalradio] Digital voice CODECS


I was copying Gerhard OE3GBB on Sunday when he switched from MELP to 
 another  codec to help a person that could not use MELP.  The non-MELP 
 codec was no where near as good as MELP but still quite good.  I did 
 not notice if it took less SNR but will play around today with the 
 different codecs.
 
 
  
 I was thinking about this today Ed. I'd sacrifice a bit of voice 
 qaulity for 
 better SNR performance.
 
 WinDRM defaults to the MELP codec and I was wondering if the SPEEX 
 or LP-10 
 offer an improvement in SNR performance?
 
 Tony KT2Q

 
 
 
 
 




Need a Digital mode QSO? Connect to  Telnet://cluster.dynalias.org

Other areas of interest:

The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
DigiPol: http://groups.yahoo.com/group/Digipol  (band plan policy discussion)

 
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