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Key	Value
`body`	A hi-hat is filtered noise with a very short fade. There's no tone at all. Take white noise and high-pass it hard, around 6 to 8 kHz. Set the volume envelope's decay to about 30 milliseconds for a closed hat. That's the whole patch. The open hat is the same patch with the decay opened to 250 to 400 milliseconds. On a real kit the closed hat cuts the open one off, so put both on one voice, or in one choke group, so they can't ring together. Classic drum machines used a cluster of detuned square waves instead of noise, which gives a more metallic ring. Try that once the noise version works.
`content_kind`	`text`
`content_ref`	`null`
`course_id`	`course-f16311ba044bf34c9ea3a26a340c0151`
`created_ts_ms`	`1791176778234`
`duration_seconds`	`420`
`id`	`lesn-01053a5b4e7b9e9b183cc471d2f72eb6`
`max_attempts`	`null`
`module_id`	`cmod-2679df2d946e4cc97cc3be6640ef95dd`
`order_index`	`2`
`pass_percent`	`null`
`release_after_days`	`null`
`release_at_ms`	`null`
`requires`	`[]`
`title`	`Hats: only noise`
`updated_ts_ms`	`1791190369950`

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