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Post by danbowen on Jan 11, 2021 20:45:57 GMT
Anyone tried the rbss through the quantiser? Will it tame it somewhat?
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Post by admin on Jan 11, 2021 21:15:49 GMT
Anyone tried the rbss through the quantiser? Will it tame it somewhat? Works like a charm! Before going into the quantizer I attenuate the voltage range with the CVTOOL. |
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andy
New Member
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Post by andy on Jan 11, 2021 21:21:08 GMT
Funny you should ask, I was just about to post in another thread. My rbss arrived today and the quantizer just doesn't click with it, every other note comes out distorted as if the voltage falls exactly between two notes and the quantizer can't make up its mind. The output led on the Q flashes fast instead of just blinking. Rbss seems to work with all VCOs when patched directly, but they're all analog so if the cv voltage fluctuation is too small, chances are I am not even noticing it and it becomes obvious only with quantization. Tried sending the signal via art/cv, mixer a, mixer b and even a vca, no success. Hopefully someone can point me to where the dog is buried...was really looking forward to playing with this combo.
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Post by MaxRichardson97 on Jan 11, 2021 21:21:40 GMT
I sometimes get a bit of wobble, but it's definitely still a great fit. I generally feed the RBSS to a mixer with another signal, then quantise the mixed feed - it seems to work slightly better to my ears at least!
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andy
New Member
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Post by andy on Jan 11, 2021 21:52:12 GMT
I sometimes get a bit of wobble, but it's definitely still a great fit. I generally feed the RBSS to a mixer with another signal, then quantise the mixed feed - it seems to work slightly better to my ears at least! Thanks, just tried your suggestion and mixed the output of the rbss with cv from the seq16, then with an envelope,then a slow lfo, still no joy. The quantizer works fine with any other cv source. Right now I wish I had an oscilloscope to see what the rbss is outputting... |
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Post by funbun on Jan 11, 2021 23:04:05 GMT
Well, if you want to "tame" it, you need the 2ATT/CV or the 2CVTOOL. Either of these will limit the range of the rbss. The quantizer will only "snap it" to the western-tempered scale. If you're running analog VCO, It's still going to sound crazy out of tune at full 5 octave range.
Try this instead: rbss < 2ATT/CV or 2 CVTOOL < QUANTIZER < VCO < FILTER, WAVESHAPER or what ever else you're doing.
Use the knob on the 2ATTCV to attenuate the signal to within an octave or so. It will still burble or wobble from time to time, but that happens anytime you're running shift registers.
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namke
wonkystuff
electronics and sound, what's not to like?!
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Post by namke on Jan 11, 2021 23:10:44 GMT
Funny you should ask, I was just about to post in another thread. My rbss arrived today and the quantizer just doesn't click with it, every other note comes out distorted as if the voltage falls exactly between two notes and the quantizer can't make up its mind. The output led on the Q flashes fast instead of just blinking. Rbss seems to work with all VCOs when patched directly, but they're all analog so if the cv voltage fluctuation is too small, chances are I am not even noticing it and it becomes obvious only with quantization. Tried sending the signal via art/cv, mixer a, mixer b and even a vca, no success. Hopefully someone can point me to where the dog is buried...was really looking forward to playing with this combo. Which output are you using from the rbss? CV or audio? I would hope that the CV output would be stable. Do you get the same wobble if you use a quantising scale with fewer notes (e.g. pentatonic instead of chromatic). Hopefully we can sort it out! |
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andy
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Post by andy on Jan 12, 2021 7:17:11 GMT
Use the knob on the 2ATTCV to attenuate the signal to within an octave or so. It will still burble or wobble from time to time, but that happens anytime you're running shift registers. Thanks for the tip, I will try limiting the range of the signal as much as possible and see if this helps. namke , I am using the CV output, tried both the internal and external clocking. I tried the different quantizer scales, with some it is a bit better, but overall none is wobble free. Seems I get 6-7 or more wobbly notes out of 16. funbun mentioned VCO tuning, which made me remember that I have a guitar effects pedal I use sometimes that has a tuner built in, so I might be able to tune a VCO properly by itself and then run the signal from the rbss through the quantizer (with and without attenuation) and into the tuner to see what it will show. As they say, a picture is worth a thousand words. I am at work at the moment, when I go home I will record some sound and video to illustrate the perceived issues. Thanks for the support! |
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andy
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Post by andy on Jan 12, 2021 16:32:47 GMT
attenuate the signal to within an octave or so THIS! funbun, I owe you a pint. Apparently last night I never went below 10 o'clock when tweaking the ATT/CV. namke, I already love this thing to pieces... Sorry to have bothered you all about something that obvious and thanks for the tips, much appreciated! |
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namke
wonkystuff
electronics and sound, what's not to like?!
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Post by namke on Jan 12, 2021 22:54:02 GMT
attenuate the signal to within an octave or so THIS! funbun , I owe you a pint. Apparently last night I never went below 10 o'clock when tweaking the ATT/CV. namke , I already love this thing to pieces... Sorry to have bothered you all about something that obvious and thanks for the tips, much appreciated! Well, it's no bother to me — happy to offer answers either in the forum or through email/PM  Glad that it is useful/fun — it definitely seems to be scratching an itch for a few people! |
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namke
wonkystuff
electronics and sound, what's not to like?!
Posts: 686
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Post by namke on Jan 17, 2021 14:21:48 GMT
Just to follow up on this, I spent this morning investigating and found that there is a high-frequency ‘ripple’ on the rbss output (250kHz) which must be coinciding with the quantiser sampling the cv. I will investigate how I can reduce this ripple in a future revision…
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