User Manual

Multiple Zoom devices on Windows

If you're on Windows and you want to use multiple pedals of the same family (for instance two MS-70CDRs and one MS-50G), you need to enable the WinRT MIDI API in your browser. In Chrome, this can be done in "experimental settings" by opening this URL (copy and paste it into the address field of your browser): chrome://flags/#use-winrt-midi-api

Most web browsers on Windows use the old Win32 MIDI API. With this API, only one device of the same family/generation can be connected at a time. So you can use one MS-70CDR and one MD-70CDR+, but not two MS-70CDRs or one MS-70CDR and one MS-50G.

Note that the WinRT MIDI API is considered experimental in Chrome for Windows. If Chrome starts having problems detecting your Zoom pedals properly, you might have to restart the browser.

MIDI mapping for Zoom pedals

For the original MS pedals (MS-70CDR, MS-50G), mapping of MIDI CCs to effect parameters only works smoothly for the first three effect slots. For the remaining three effect slots, changing the effect parameters will trigger a patch reload, which will result in audio being muted for a brief moment.

For the MS+ pedals (MS-70CDR+, MS-60B+, MS-50G+) the MIDI CC mapping works for all effect slots.

CC	Target
2	Effect 1 on/off
3	Effect 1 parameter 1
4	Effect 1 parameter 2
5	Effect 1 parameter 3
6	Effect 1 parameter 4
7	Effect 1 parameter 5
8	Effect 1 parameter 6
9	Effect 1 parameter 7
10	Effect 1 parameter 8
11	Effect 1 parameter 9
12	Effect 1 parameter 10
13	Effect 1 parameter 11
14	Effect 1 parameter 12
17	Effect 2 on/off
18	Effect 2 parameter 1
19	Effect 2 parameter 2
20	Effect 2 parameter 3
21	Effect 2 parameter 4
22	Effect 2 parameter 5
23	Effect 2 parameter 6
24	Effect 2 parameter 7
25	Effect 2 parameter 8
26	Effect 2 parameter 9
27	Effect 2 parameter 10
28	Effect 2 parameter 11
29	Effect 2 parameter 12
33	Effect 3 on/off
34	Effect 3 parameter 1
35	Effect 3 parameter 2
36	Effect 3 parameter 3
37	Effect 3 parameter 4
38	Effect 3 parameter 5
39	Effect 3 parameter 6
40	Effect 3 parameter 7
41	Effect 3 parameter 8
42	Effect 3 parameter 9
43	Effect 3 parameter 10
44	Effect 3 parameter 11
45	Effect 3 parameter 12
48	Effect 4 on/off
49	Effect 4 parameter 1
50	Effect 4 parameter 2
51	Effect 4 parameter 3
52	Effect 4 parameter 4
53	Effect 4 parameter 5
54	Effect 4 parameter 6
55	Effect 4 parameter 7
56	Effect 4 parameter 8
57	Effect 4 parameter 9
58	Effect 4 parameter 10
59	Effect 4 parameter 11
60	Effect 4 parameter 12
63	Effect 5 on/off
64	Effect 5 parameter 1
65	Effect 5 parameter 2
66	Effect 5 parameter 3
67	Effect 5 parameter 4
68	Effect 5 parameter 5
69	Effect 5 parameter 6
70	Effect 5 parameter 7
71	Effect 5 parameter 8
72	Effect 5 parameter 9
73	Effect 5 parameter 10
74	Effect 5 parameter 11
75	Effect 5 parameter 12
78	Effect 6 on/off
79	Effect 6 parameter 1
80	Effect 6 parameter 2
81	Effect 6 parameter 3
82	Effect 6 parameter 4
83	Effect 6 parameter 5
84	Effect 6 parameter 6
85	Effect 6 parameter 7
86	Effect 6 parameter 8
87	Effect 6 parameter 9
88	Effect 6 parameter 10
89	Effect 6 parameter 11
90	Effect 6 parameter 12