Roland TD-6 owner manual 147, About tuning, Example, 442.0 Hz

Models: TD-6

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About tuning

*Tuning by sending RPN#1 is only possible in GM mode.

In MIDI, individual Parts are tuned by sending RPN #1 (Channel Fine Tuning) to the appropriate MIDI channel.

In MIDI, an entire device is tuned by either sending RPN #1 to all MIDI channels being used, or by sending a System Exclusive MASTER TUNE (address 00 0A 00 00H).

RPN #1 allows tuning to be specified in steps of approximately 0.012 cents (to be precise, 100/8192 cent). One cent is 1/100th of a semitone. System Exclusive MASTER TUNE allows tuning in steps of 0.1 Hz.

The values of RPN #1 (Channel Fine Tuning) and System Exclusive master tune are added together to determine the actual pitch sounded by each Part.

Frequently used tuning values are given in the following table for your reference. Values are in hexadecimal (decimal in parentheses).

+————————+————————+——————————————+—————————————————————+

Hz in A4

cent

RPN #1

Sys.Ex. 00 0A 00 00

+————————+————————+——————————————+—————————————————————+

445.0

+19.56

4C

43

(+1603)

00 01

02

09

(+50)

444.0

+15.67

4A

03

(+1283)

00 01

01

0F

(+40)

443.0

+11.76

47

44

(+ 964)

00 01

01

05

(+30)

442.0

+ 7.85

45

03

(+ 643)

00 01

00

0B

(+20)

441.0

+ 3.93

42

42

(+ 322)

00 01

00

01

(+10)

440.0

0.00

40

00

(

0)

00 00

0F

07

( 0)

439.0

— 3.94

3D

3D

(— 323)

00 00

0E

0D

(—10)

438.0

— 7.89

3A

7A

(— 646)

00 00

0E

03

(—20)

+————————+————————+——————————————+—————————————————————+

<Example>

In GM mode, set the tuning of MIDI channel 3 to A4 =

442.0 Hz

Send RPN#1 to MIDI channel 3. From the above table, the value is 45 03H.

B2

64 00

MIDI ch.3, lower byte of RPN parameter number

: 00H

(B2)

65 01

(MIDI ch.3) upper byte of RPN parameter number

: 01H

(B2)

06 45

(MIDI ch.3) upper byte of parameter value

: 45H

(B2)

26 03

(MIDI ch.3) lower byte of parameter value

: 03H

(B2)

64 7F

(MIDI ch.3) lower byte of RPN parameter number

: 7FH

(B2)

65 7F

(MIDI ch.3) upper byte of RPN parameter number

: 7FH

MIDI Implementation

Appendices

147

Page 147
Image 147
Roland TD-6 owner manual 147, About tuning, Example, 442.0 Hz