Frequency Translator

Walters · 6th May 2005

What is a Frequency Translator?
1.) It was pitch-changing device

2.) built originally as a feedback avoidance unit

Was invented by Abbey Road technician Keith Atkins.

Does anyone know about this unit more about it

Geoff_T · 6th May 2005

Hi

I don't believe I've heard of a frequency translator as an audio technique... I think that you'll find it a common term nowadays in RF technology where the frequency is the carrier frequency.

http://www.its.bldrdoc.gov/projects/...anslation.html

I think in audio it's more commonly refered to as frequency shifting, as raised in your earlier thread.

That's my best guess though you might also apply the description to a phase lock loop or similar device. For example, many years ago (late 70's, early 80's) I dabbled with ideas on electronic medical devices at home. I had a fairly well equiped work bench and designed an LCD read out pulse monitor. The human pulse is down around 1Hz so I used a phase lock loop to multiply the frequency by ten so that the display had a more useful readout when used to measure pulses per minute. That principle involved frequency multiplication (ie times 10) which is still different from frequency shifting (ie 1000Hz to 1005Hz).

Here's a link to a nifty audio project that uses the same principle...

http://home1.gte.net/res0658s/fatman/4046pll.html

6th May 2005	#1
Walters Gear nut Join Date: Apr 2005 Posts: 142 Thread Starter	Frequency Translator What is a Frequency Translator? 1.) It was pitch-changing device 2.) built originally as a feedback avoidance unit Was invented by Abbey Road technician Keith Atkins. Does anyone know about this unit more about it

6th May 2005	#2
Geoff_T Lives for gear Join Date: Jul 2003 Location: Tujunga Posts: 3,632	Hi I don't believe I've heard of a frequency translator as an audio technique... I think that you'll find it a common term nowadays in RF technology where the frequency is the carrier frequency. http://www.its.bldrdoc.gov/projects/...anslation.html I think in audio it's more commonly refered to as frequency shifting, as raised in your earlier thread. That's my best guess though you might also apply the description to a phase lock loop or similar device. For example, many years ago (late 70's, early 80's) I dabbled with ideas on electronic medical devices at home. I had a fairly well equiped work bench and designed an LCD read out pulse monitor. The human pulse is down around 1Hz so I used a phase lock loop to multiply the frequency by ten so that the display had a more useful readout when used to measure pulses per minute. That principle involved frequency multiplication (ie times 10) which is still different from frequency shifting (ie 1000Hz to 1005Hz). Here's a link to a nifty audio project that uses the same principle... http://home1.gte.net/res0658s/fatman/4046pll.html __________________ Geoff Tanner Aurora Audio International See us on Facebook http://www.facebook.com/auroraaudio http://www.soundonsound.com/sos/may1...off-tanner.htm http://www.auroraaudio.net/ http://www.amazon.com/Window-Past-Ge...8737082&sr=1-9 http://www.grandmasterrecorders.com For quicker responses, please use my email (Geoff at auroraaudio.net) in preference to pm's on these forums.

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