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mungewell / zoom-zt2

Python script to install/remove effects from the Zoom G1Four pedal
MIT License
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Additional categories: IR and SND-RET (G11) #56

Open nomadbyte opened 1 year ago

nomadbyte commented 1 year ago

It appears that the G11 (G6/B6 likely too) model references additional effect categories:

cat-id cat-xid cat-name notes
26 0x1a SND-RET Send/Return
27 0x1b IR Impulse Response

The IR category name is tentative, as the category is only referenced in patch file as part of effect-id. E.g:

IR:0x1b000042
IR:0x1b000013
 8 PDL:DYN:AMP:IR :IR :DYN:DLY:REV:---:--- "007.MS RoomMic"

I could not locate any .ZD2 files which have such effect ids, see also #55. Usually IR modules chained after AMP, but may follow other modules, including another IR modules. The official G11 patch-list doc shows IR modules in the patch chains with some settings, but without any references to file. It's possible that the IR "modules" are generated internally per given IR waveform.

There are 43 IR modules listed across the G11 standard patches:

0x1b000011
0x1b000012
0x1b000013
0x1b000015
0x1b000018
0x1b00001b
0x1b00001e
0x1b000021
0x1b000024
0x1b000025
0x1b000026
0x1b000027
0x1b000028
0x1b00002d
0x1b00002f
0x1b000030
0x1b000032
0x1b000033
0x1b000036
0x1b000039
0x1b00003b
0x1b00003c
0x1b00003e
0x1b00003f
0x1b000040
0x1b000042
0x1b000043
0x1b000046
0x1b000048
0x1b000049
0x1b00004c
0x1b00004d
0x1b00004f
0x1b000052
0x1b000055
0x1b0000d8
0x1b0000dc
0x1b0000e2
0x1b0000ec
0x1b0000ef
0x1b0000f0
0x1b0000f7
0x1b0000fb

As for the SND-RET, this is an internal category and contains the following modules:

file size ver category fxmodid name
FX_LOOP1.ZD2 3486 1.00 SND-RET 0x1a000010 FxLoop 1
FX_LOOP2.ZD2 3486 1.00 SND-RET 0x1a000011 FxLoop 2
STFXLOOP.ZD2 3486 1.00 SND-RET 0x1a000012 St.FxLoop
SEND1.ZD2 3486 1.00 SND-RET 0x1a000013 Send 1
SEND2.ZD2 3486 1.00 SND-RET 0x1a000014 Send 2
STSEND.ZD2 3486 1.00 SND-RET 0x1a000015 St.Send
RETURN1.ZD2 3486 1.00 SND-RET 0x1a000016 Return 1
RETURN2.ZD2 3486 1.00 SND-RET 0x1a000017 Return 2
STRETURN.ZD2 3486 1.00 SND-RET 0x1a000018 St.Return
mungewell commented 1 year ago

Nice information.

One thing I didn't know before was that the 2 returns can be combined to create a stereo pair. I'm sure the Synth world would like to know about that... G11_external_stereo

nomadbyte commented 1 year ago

The SND-RET effects (IR as well) must be tied to the hardware (G11/G6/B6), so I would not expect these effects to function on G1/B1/A1 FOUR nor G5n/G3n/B3n, as these lack the dedicated send/return jacks.

At least I won't be trying it, saving a chance of locking the device up...

However, the G11 is compatible with G5n-targeting ZD2 effects.

mungewell commented 1 year ago

Of course the Send/Returns will need the hardware on the device, just mentioned as the MS-70CDR is the only Zoom effect unit with stereo inputs. This lets you pass stereo into the G11.

The G2Four also (apparently) has IR capability.