[sdiy] Korg KR-55 drum machine query

[Mattias Rickardsson]

I studied the schematic and my KR-55 internals some decade ago, but didn't
notice these questionable numbers - interesting. Should revisit it.

On Mon, 13 Nov 2023 at 15:43, Richie Burnett <rburnett at richieburnett.co.uk>
wrote:

>
> Do you have access to either a KR-55 or at least some decent samples that
> you could analyse?  The frequencies of the six free-running oscillators
> stand out as fairly prominent spectral lines in the TR-808 cymbal and
> hi-hat
> sounds, (despite all the clipping and filtering that follows the
> oscillators!)
>

Good idea, potentially - but I wouldn't expect these frequencies to be
quite as visible in the audio from the Korgs, since they are ringmodulated
in pairs rather than just added like on Rolands. :-)

/mr
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