[amsat-bb] Re: Auto-Tune

[John Heath]

Hi Joe,
I didn't know about auto tuners used by musicians.
About 5 years ago I had a similar idea for tuning the Doppler without computer control.
Thought it would be a neat feature inside a transciever so sent the idea  to Yaesu Japan but got no reply.
73 John G7HIA




________________________________
From: Joe Leikhim <rhyolite at nettally.com>
To: kc6uqh at cox.net
Cc: AMSAT-BB at amsat.org
Sent: Monday, 30 November, 2009 14:08:45
Subject: [amsat-bb] Re: Auto-Tune

The Auto-Tune software used by musicians, apparently can determine the spectral center of human voice and lock it to a particular musical "key". If the same software were to be modified to identify when the pitch moved beyond a preset point (IF passband), then the receiver frequency could be automatically slewed by CIV or CAT serial commands. Imagine a standalone DSP like the Timewave having this feature.
-----Original Message-----
From: "Art McBride" <kc6uqh at cox.net>
Sent 11/30/2009 12:41:37 AM
To: Rhyolite at NETTALLY.COM
Subject: RE: [amsat-bb] Auto-TuneJoe,
You have the IF pass band to consider. 
AFC on FM works well, commercially SSB receivers were designed to lock on to
a -16dB pilot carrier but, Amateur radios do not have that option for either
mode. Your Auto-Tune Idea could work on CW as long as it could also
increment the receiver LO to keep the signal inside the IF pass-band.
Art,
KC6UQH  
-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of RFI-EMI-GUY
Sent: Sunday, November 29, 2009 8:53 PM
To: amsat-bb at amsat.org
Subject: [amsat-bb] Auto-Tune
I have been having a debate with my son about the overuse of Auto-Tune 
in music. Personally, I find it irritating. Then it occurred to me that 
I had proposed on this BB a long time ago that it would be nifty to have 
a DSP (Like  Timewave DSP-599) that would correct for doppler. Has 
anyone tried Auto-Tune to correct doppler on a linear transponder?
-- 
Joe Leikhim K4SAT
"The RFI-EMI-GUY"C
"Use only Genuine Interocitor Parts" Tom Servo  ;-P
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