Automating the mix with MIDI on Tascam DP24 or DP32

Tascam DP24/DP32 allows to drive the front panel with MIDI. Each individual parameter from track channel, audio input or stereo mix can be change with simple CC (Control Change) commands. This is very helpful to automate mixing or to create special effects such as stereo panning.

How to access the parameters?

Selecting the bank. The DP24/DP32 has respectively 24 and 32 audio track channels, grouped into "banks" of 8 channels; the bank must be selected before accessing the individual channel. This is done by sending a 'Bank Select LSB' on MIDI channel 14, followed by the bank number:

Bytes	On DP24	On DP32
0xBD 0x20 0x00	Bank 0	Bank 0
0xBD 0x20 0x01	Bank 1	Bank 1
0xBD 0x20 0x02	Bank 2	Bank 2
0xBD 0x20 0x03	Bank 3	Bank 3
0xBD 0x20 0x04		Bank 4

Selecting the channel. Inside a bank, MIDI channel 1 to 8 is associated with a track channel; MIDI channel 16 is always Stereo Master, no matter which bank is selected.
To control a parameter on an audio channel, the Control Change byte selects the audio channel:

Bank selected	Control Change...	... controls (DP24)	... controls (DP32)
Bank 0	0xB0 to 0xB7	Channel 1 to 8	Channel 1 to 8
Bank 1	0xB0 to 0xB7	Channel 9 to 16	Channel 9 to 16
Bank 2	0xB0 to 0xB7	Channel 17 to 24	Channel 17 to 24
Bank 3	0xB0 to 0xB7	Input A to H	Channel 25 to 32
Bank 4	0xB0 to 0xB7		Input A to H
	0xBF	Stereo Master	Stereo Master

Selecting the parameter. The parameter to control is selected by sending a 'Bank Select MSB', followed by the desired value:

Bytes	Parameter	value
0xBn 0x07 value	Internal level	0 (0x00) → 127 (0x7F)
0xBn 0x0A value	Panning	0 (0x00) = left → 127 (0x7F) = right 64 (0x40) = center
0xBn 0x0B value	Digital Trim	0 (0x00) = -42 dB → 48 (0x30) = +6 dB
0xBn 0x10 value	EQ Low Freq	0 (0x00) → 31 (0x1F): ➥ table below
0xBn 0x11 value	EQ Low Gain	0 (0x00) = -12 dB → 24 (0x18) = +12 dB
0xBn 0x12 value	EQ Mid Freq	0 (0x00) → 63 (0x3F): ➥ table below
0xBn 0x13 value	EQ Mid Gain	0 (0x00) = -12 dB → 24 (0x18) = +12 dB
0xBn 0x14 value	EQ Mid Q	0 (0x00) → 6 (0x06) = 0.25, 0.5, 1, 2, 4, 8, 16
0xBn 0x15 value	EQ High Freq	32 (0x20) → 63 (0x3F): ➥ table below
0xBn 0x16 value	EQ High Gain	0 (0x00) = -12 dB → 24 (0x18) = +12 dB
0xBn 0x17 value	Effect 1 Level	0 (0x00) = -∞ dB → 127 (0x7F) = 0dB
0xBn 0x18 value	Effect 2 Level	0 (0x00) = -∞ dB → 127 (0x7F) = 0dB
0xBn 0x50 value	EQ switch	0 (0x00) = Off, 1 (0x01) = On
0xBn 0x51 value	Effect 1 Position	0 (0x00) = Off, 1 (0x01) = Pre, 2 (0x02) = Post
0xBn 0x51 value	Effect 2 Position	0 (0x00) = Off, 1 (0x01) = Pre, 2 (0x02) = Post

Value	Freq (Hz)	Value	Freq (Hz)	Value	Freq (Hz)	Value	Freq (Hz)
0 (0x00)	32	16 (0x10)	400	32 (0x20)	1.7k	48 (0x30)	5.5k
1 (0x01)	40	17 (0x11)	450	33 (0x21)	1.8k	49 (0x31)	6.0k
2 (0x02)	50	18 (0x12)	500	34 (0x22)	1.9k	50 (0x32)	6.5
3 (0x03)	60	19 (0x13)	600	35 (0x23)	2.0k	51 (0x33)	7.0k
4 (0x04)	70	20 (0x14)	700	36 (0x24)	2.2k	52 (0x34)	7.5k
5 (0x05)	80	21 (0x15)	800	37 (0x25)	2.4k	53 (0x35)	8.0k
6 (0x06)	90	22 (0x16)	850	38 (0x26)	2.6k	54 (0x36)	9.0k
7 (0x07)	100	23 (0x17)	900	39 (0x27)	2.8k	55 (0x37)	10k
8 (0x08)	125	24 (0x18)	950	40 (0x28)	3.0k	56 (0x38)	11k
9 (0x09)	150	25 (0x19)	1.0k	41 (0x29)	3.2k	57 (0x39)	12k
10 (0x0A)	175	26 (0x1A)	1.1k	42 (0x2A)	3.4k	58 (0x3A)	13k
11 (0x0B)	200	27 (0x1B)	1.2k	43 (0x2B)	3.6k	59 (0x3B)	14k
12 (0x0C)	225	28 (0x1C)	1.3k	44 (0x2C)	3.8k	60 (0x3C)	15k
13 (0x0D)	250	29 (0x1D)	1.4k	45 (0x2D)	4.0k	61 (0x3D)	16k
14 (0x0E)	300	30 (0x1E)	1.5k	46 (0x2E)	4.5k	62 (0x3E)	17k
15 (0x0F)	350	31 (0x1F)	1.6k	47 (0x2F)	5.0k	63 (0x3F)	18k