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 <rhyol...@nettally.com> To: kc6...@cox.net Cc: AMSAT-BB@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" <kc6...@cox.net> Sent 11/30/2009 12:41:37 AM To: rhyol...@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-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of RFI-EMI-GUY Sent: Sunday, November 29, 2009 8:53 PM To: amsat-bb@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 _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb __________ Information from ESET NOD32 Antivirus, version of virus signature database 4647 (20091129) __________ The message was checked by ESET NOD32 Antivirus.http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 4647 (20091129) __________ The message was checked by ESET NOD32 Antivirus.http://www.eset.com ���������� _______________________________________________ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
