I'm looking for an object that would accept a signal and a number and transpose the signal by that amount. Ideally, I'd also like to find one that would add a number to the frequency of a signal (to predictably generate beat frequencies when the original signal and the modified one are combined), though I realize that this might be a lot more difficult.
I've looked where I need to look, and poked around at creating them, but haven't succeeded in finding them or getting them to happen. Any clues?
Joseph Zitt hat gesagt: // Joseph Zitt wrote:
I'm looking for an object that would accept a signal and a number and transpose the signal by that amount. Ideally, I'd also like to find one that would add a number to the frequency of a signal (to predictably generate beat frequencies when the original signal and the modified one are combined), though I realize that this might be a lot more difficult.
I've looked where I need to look, and poked around at creating them, but haven't succeeded in finding them or getting them to happen. Any clues?
Steve Harris wrote a LADSPA pitchScale plugin available at http://www.plugin.org.uk/ that transposes signals using FFTs.
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Also see "52.ssb.modulation.pd" (for a true frequency shifter) and 56.delay.pitchshift.pd for a transposer .. you can use them in series to get any linear modification of frequencies, like f -> af+b.
cheers Miller
On Wed, Dec 12, 2001 at 11:48:44AM +0100, Frank Barknecht wrote:
Joseph Zitt hat gesagt: // Joseph Zitt wrote:
I'm looking for an object that would accept a signal and a number and transpose the signal by that amount. Ideally, I'd also like to find one that would add a number to the frequency of a signal (to predictably generate beat frequencies when the original signal and the modified one are combined), though I realize that this might be a lot more difficult.
I've looked where I need to look, and poked around at creating them, but haven't succeeded in finding them or getting them to happen. Any clues?
Steve Harris wrote a LADSPA pitchScale plugin available at http://www.plugin.org.uk/ that transposes signals using FFTs. -- __ __ Frank Barknecht ____ ______ ____ __ trip\ \ / /wire ______ / __// __ /__/ __// // __ \ / / __ \ ___\ / / / ____/ / / / // ____// /\ \ ___\____ \ /_/ /_____/ /_/ /_//_____// / \ \_____\_____
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Frank Barknecht -
Joseph Zitt -
Miller Puckette