Re: [tuning] tg77 correction

I made a slight error in the last message re: tg77 retuning.

> 1. The synth.par file needs to be edited. The "tune" section of
instrument
> type 3 need an extra bit (00 or probably 01 for the second internal tuning
> table).

Actually, 01 in this bit would indicate note number 64 to 127.
so, given the following parameter change message:

> 2;sysevent $43 $10 $34 $0B $00 $00 $02 $27 $01 end sysevent

Bit5 is the synths user definable internal tuning table, either 00 or 01
bit 6 is either 00 for notes 0-63 or 01 for notes 64- 127.
bit 7 is the note to retune, even hex value only from 00 to 7E, inclusive
bit 8 is coarse tuning
bit 9 is fine tuning

Darren

Here is the correct text:
>
> !
> ! Type 3
> !
> Yamaha SY77/TG77/SY99/VL-1/VL-7
> 1024.0
> 5120
> 261.6256
> 16384
> 0
> 127
> ! init
> F0 43 10 19 05 03 F7
> ! prefix
> F0 43 10
> ! tune
> 34 0B 00 00
> ! suffix
> F7
>
> 2. Also, Scala does not build the tuning parameter lines properly for
this
> synth.
>
> Scala generates the following tuning messages given my scale and keymap:
>
> 2;sysevent $43 $10 $34 $0B $00 $00 $00 $24 $37 end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $01 $25 $65 end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $02 $27 $01 end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $03 $28 $0D end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $04 $29 $0E end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $05 $2A $04 end sysevent
>
> However, the MIDI parameter change table only uses _even_ hex numbers for
> N2, which is the 7th bit in each line. The above parameter change
messages
> with odd hex numbers in the 7th bit are ignored by the synth. The correct
> code would be as follows:
>
> 2;sysevent $43 $10 $34 $0B $00 $00 $00 $24 $37 end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $02 $25 $65 end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $04 $27 $01 end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $06 $28 $0D end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $08 $29 $0E end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $00 $0A $2A $04 end sysevent
> etc, etc
>
> This would only apply to notes 0 to 63. For notes 64 to 127, N1=01 (6th
> bit), yeilding the following text:
>
> 2;sysevent $43 $10 $34 $0B $00 $01 $00 $24 $37 end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $01 $02 $25 $65 end sysevent
> 2;sysevent $43 $10 $34 $0B $00 $01 $04 $27 $01 end sysevent
> etc, etc
>
> V1 (8th bit) , however, increments by 1. V1 sets the course tuning (note
> number).
>
> Is there a config or parameter file in scala that can be changed to
> accomodate this quirk? Or does the Scala code need to be fixed?
>
> Darren
>
>
>
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