[speex-dev] sampling rate

Ryan dl ryandl2003 at yahoo.com
Tue Oct 22 18:29:38 PDT 2002



It seems to work ok with the same audible quality as a
standard sampling rate. Is there any way to test this?
Will superimposing an inverse wave over the origional
produce a meaningfull result? Thanks for your time,

Ryan de Leeuw

<p><p>>Sorry for the delay. I've been doing a couple tests
>and what I'd suggest 
>is encoding using the narrowband (8 kHz normally)
>mode even though your 
>data is at 11.025 kHz. It won't work for wav input
>(for now) but it will 
>work for raw audio. Note that your mileage may vary
>depending on the 
>input. There may be some noise in the high (~5 kHz)
>band, mostly is 
>there is lots of energy in the low-band (you may want
>to slightly 
>high-pass). This is because it's sometimes hard to
>encode audio when 
>there's a high energy difference (80-100 dB) between
>low frequencies and 
>high frequencies. 
>
>
>        Jean-Marc 
>
>
>
>-- 
>Jean-Marc Valin, M.Sc.A.
>LABORIUS (http://www.gel.usherb.ca/laborius)
>Université de Sherbrooke, Québec, Canada

<p><p><p>__________________________________________________
Do you Yahoo!?
Y! Web Hosting - Let the expert host your web site
http://webhosting.yahoo.com/
--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to 'speex-dev-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.



More information about the Speex-dev mailing list