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Bc2000 (for the BCF2000 & BCR2000)

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Re: Tweaking Yamaha FB-01 with BCR2000

2010-07-07 by Royce

Hi

> I’m trying to program my BCR2000 to tweak Yamaha FB-01 sound generator.
> FB-01 recognizes a sysex messages only.
I'm not sure this is true. I had a quick look at the Midi spec (yuou can download it at Yamaha) and looks lik eyou can use controllers to also change stuff

> To do my job I found a PC patch editor for FB-01 â€" I plugged FB-01 to my computer: it works well, no problem here.
> To find what kind of sysex messages a PC patch editor sends to Yamaha, I observed a sent data of PC patch editor with the SysEx window of BC Editor.
> I noticed that most of the time, the same Parameter N° is shared by two, three, or four orders: in my example, the parameter #57 is shared by “Sustain level” and “Release rate” orders.

This is true of many early synths when memory was very costly.
Two or more parameters were packed into a single byte
0xxx xyyy  where xxxx was one parameter and yyy was another.

Unfortunately with the BC you can't access the value of another parameter (say Sustain Level) to add it to the new value of Release Rate, and then output the resulting byte

Royce

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