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 Kyma Forum
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 spectral shift | multipy freqs by a val > 1
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| Author | Topic: spectral shift | multipy freqs by a val > 1 | |
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johannes Member |
posted 25 November 2014 04:54
 
maybe a obvious thing: i just made some experiments with spectral shifting and stumbled over this: when i try to multiply the right leg by a value greater than 1, the signal (before feeding it into the product module) seems to be clipped at 1. why is it ? thanks for your help, [This message has been edited by johannes (edited 25 November 2014).] [This message has been edited by johannes (edited 25 November 2014).] IP: Logged | |
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gustl Member |
posted 25 November 2014 07:36
It's not that obvious, I had the same problem but luckily Pete helped me out You can't have values higher than -1,1 between modules. But you can work around this: In your constant use 0.25 + !Shift, then use a gain module after the product to multiply it by 4. This way you first multiply the freqs by 0.25 + !Shift and multiply them by 4 afterwards. When !Shift is 0 you get your original frequencies, higher values shift up, lower values shift down. Best, IP: Logged | |
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cristian_vogel Member |
posted 02 December 2014 04:51
You can also use default*!shift in the Frequency scale field of the SpectrumInRam, which will scale the base frequency of the partials with no limitations IP: Logged | |
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johannes Member |
posted 03 December 2014 03:45
thanks for the hints, i like to shift the partials individually using a transfer function. actually there is already a sound somewhere in the kyma library that works like grm's freqwarp plugin ( using xy panel for the frequency-mapping). cant find the sound. can anybody point me to the sound in the lib? thanks, johannes IP: Logged | |
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johannes Member |
posted 05 December 2014 04:18
ok, i found the sound. its called "warp pitches in spectrum" and can be found in the spectral processing- analyzed folder (in the kyma sound lib). well, iam not sure if i fully understand how the inputOutputCharacteristic module i.e. the compression curve effects the partials here. thanks for help, [This message has been edited by johannes (edited 05 December 2014).] IP: Logged | |
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SSC Administrator |
posted 05 December 2014 08:45
What are the values of the Inputs in the InputOutputCharacteristic? Are the first ones negative? IP: Logged | |
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johannes Member |
posted 05 December 2014 09:08
i use the original numbers from the "warp pitches in spectrum" sound. so yes, in both inputoutputcharacteristic modules the first number of the input is a -1. btw. i dont know if this is by intention: in the upper part of the sound the ramp ranges from 0 to 1 (while the name of the oscillator suggest its a fullramp) [This message has been edited by johannes (edited 05 December 2014).] IP: Logged | |
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gustl Member |
posted 07 December 2014 02:54
I haven't opened the Sound yet, but from what I've read I think the left (negative) part of the curve is warping the negative frequency values. Since there are none, it doesn't change anything.. Best, G IP: Logged |
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