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Post by mkjackn on Jan 27, 2022 9:43:31 GMT
Anyone had any luck reliably detecting trigger signals from the topograf? I notice the ae drum modules do so very well but the 2env does not? Ive got a small transistor detection circuit running which works well with the seq modules, is there anything extra that needs doing to detect the topograph triggers? would an op amp detector work better? Attachments:
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Post by pt3r on Jan 27, 2022 11:15:22 GMT
Have you checked the output level/duration of the topograf? I only checked for triggers via the arduino interrupts.
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Post by mkjackn on Jan 27, 2022 12:22:59 GMT
Have you checked the output level/duration of the topograf? I only checked for triggers via the arduino interrupts. going to try using interrupts instead, good idea. Still, if it's a duration issue, interested why it doesn't trigger the 2env properly, i wonder what the difference in tigger and gate detection in say the drumkit and 2env? |
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Post by pt3r on Jan 27, 2022 13:46:39 GMT
With interrupts you just can check for a level change (i.e. RISING) to consider a trigger, you don't need a specific level during a minimum period like that transistor circuit, i guess. robertlanger might provide you with more insight on how 2ENV and the drum modules detect triggers. |
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Post by keurslagerkurt on Jan 29, 2022 23:09:20 GMT
Have you checked the output level/duration of the topograf? I only checked for triggers via the arduino interrupts. going to try using interrupts instead, good idea. Still, if it's a duration issue, interested why it doesn't trigger the 2env properly, i wonder what the difference in tigger and gate detection in say the drumkit and 2env? I imagine the drumkit using a digital input pin on the chip, while the 2ENV is purely analog I think. So the input circuits are different. I Remember I had the same troubles, but you can change the trigger duration of the topograph with it's settings (you can find it in the quick start guide for the original mutable instruments module). Changing this setting made it trigger the 2env consistently for me! |
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