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Post by funbun on Mar 16, 2020 16:55:06 GMT
I understand that S&H needs a clock or LFO input, but why does it need a noise source instead of a VCO?
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Post by slowscape on Mar 16, 2020 17:12:07 GMT
I thought it worked with any input It just samples the input when the trigger is positive, and then allows you to tap into that sampled value in the future.
I'm not s&h expert though. I still haven't found a solid use for it personally. |
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Post by MikMo on Mar 16, 2020 17:15:13 GMT
The sample and hold basically just takes a snapshot of the voltage level present on the input when it relieves a clock signal.
You could sample any signal.
The reason to sample a noise source is that it will give you random voltages at the input, that you can use as control voltages.
So if you sample and hold noise and use the output as CV to a VCO you will get random frequencies.
Mikael
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Post by NightMachines on Mar 16, 2020 17:22:39 GMT
Having a freely patchable sample input makes the module more versatile. Patching white noise into the input generates a (quasi) random, stepped CV output to the beat of the clock/trigger input signal. This is great to add some randomness to any modulation that is synced to a beat. Use an attenuator to reduce the S&H strength before mixing it with other CV. For example many filters have two CV inputs for cutoff modulation, so you can always add an attenuated S&H signal to add more variety or a natural/human factor.
When you patch an LFO into the S&H’s sample input, you get less random stepped CV. You can even re-sample sequencer CV with a S&H at a different rate than the sequencer is running, which can be fun.
Another cool use for a S&H is as a sample rate reducer, like you find in a bit crusher effect. Send an audio signal into the sample input and a fast square wave LFO or slow square wave VCO into the trigger input. Depending on the triggering LFO/VCO speed, the audio signal gets more or less “crushed”.
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Post by slowscape on Mar 16, 2020 20:23:34 GMT
NightMachines Thanks sooo much for your answer! Looking forward to trying these things
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Post by funbun on Mar 16, 2020 21:25:38 GMT
Oh, I get it! The sample in sample and hold is actually sampling! I assume that the tracking in track and hold is tracking the changes in CV, sort of like motion picture instead of still pictures?
Also if you ran a S&H through a quantizer or strings, wouldn't that constitute a generative patch?
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Post by slowscape on Mar 16, 2020 22:49:51 GMT
Yes a quantizer would definitely help make randomness in s&h sound more uniform and "generative"! I always thought s&h was useless without it, but after night machines examples, I see it can be used for a more human feel. I'm very excited about this idea!
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Post by NightMachines on Mar 16, 2020 23:05:25 GMT
Oh, I get it! The sample in sample and hold is actually sampling! I assume that the tracking in track and hold is tracking the changes in CV, sort of like motion picture instead of still pictures? Also if you ran a S&H through a quantizer or strings, wouldn't that constitute a generative patch? Correct. A track and hold lets a signal pass through unchanged until it receives a gate (or loses a gate signal). Then it will hold the current input signal level. S&H through a quantizer will indeed generate melodies, which are great for “solos” or additional melodies on top of composed ones. Yes a quantizer would definitely help make randomness in s&h sound more uniform and "generative"! I always thought s&h was useless without it, but after night machines examples, I see it can be used for a more human feel. I'm very excited about this idea! Yeah! Definitely try it on everything, but don’t forget that attenuator. Works nicely with envelopes with modulation inputs too (2ENV), or a trigger delay (TRIP, which will be released soon-ish I guess) or the MM-DIV’s rotate input. |
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Post by funbun on Mar 16, 2020 23:07:19 GMT
Yeah, I'm working on a S&H patch called the Power Station as I often fish below the hydro electric dam and wonder what it's like working in the power station there.
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Post by admin on Mar 16, 2020 23:16:16 GMT
Oh, I get it! The sample in sample and hold is actually sampling! I assume that the tracking in track and hold is tracking the changes in CV, sort of like motion picture instead of still pictures? Also if you ran a S&H through a quantizer or strings, wouldn't that constitute a generative patch? Hi, please check out the documentation on the Wiki with a link to my video on how to use the S&H. I only made one small mistake in the video in which I explained that the S&H would work like a sequential switch which it doesn't ... it samples and outputs that sample at the same time. wiki.aemodular.com/pmwiki.php/AeManual/SAMPLEHOLDA lot of work has gone into the documentation on the Wiki although it's still a work in progress. Please check it out for all modules and let me know if you find any mistakes or anything is missing or unclear. |
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Post by funbun on Mar 16, 2020 23:30:10 GMT
Definitely need that since I plan to do a lot of Steve Reich like phase melody type stuff. |
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Lugia
Wiki Editors
Ridiculously busy...ish.
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Post by Lugia on Mar 17, 2020 2:23:43 GMT
Note that you don't have to use just ONE sample and hold...you can take a few of them, plus some extra clock manipulation widgets, and brew up an analog shift register. Canons for DAYS!!!
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Post by slowscape on Mar 17, 2020 16:38:14 GMT
NightMachines had some time yesterday, patched something up real quick and I’ll be posting a video today or tomorrow, you can get some super cool sounds with the technique 👍👍
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Post by MikMo on Mar 17, 2020 18:17:41 GMT
Definitely need that since I plan to do a lot of Steve Reich like phase melody type stuff. I would love to hear some of that! |
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Post by rodney on Mar 21, 2020 5:01:38 GMT
If you use your sequencer CV output as the sample input source then trigger it from Triq16 module, it will send out the current note to something else. It's nice for deriving a base line using some of the notes from your sequence. If one of them is re-setting at a different number of steps, the bass notes chosen will shift each time you repeat.
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