Home » Archimedes archive » Acorn User » AU 1998-02 B.adf » Regulars » RTR/!SuperWah/!Help

RTR/!SuperWah/!Help

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

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Filename: RTR/!SuperWah/!Help
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File contents
Super Wah Wah V1.0 Copyright Mike Cook - Musbury Consultants all rights 
reserved 

Tel. 01706 216701
5 Helmshore Rd,
Haslingden,
Rossendale,
Lancs.
BB4 4BG

A Wah Wah pedal is an effects pedal used with a guitar.

This application allows you to control a 7 band stereo Graphics Equaliser 
from a pedal. You can control the Graphics Equaliser dynamically as you play.

The pedal is a pot attached to the IIC bus.

Use the sliders to program up a pattern then you can save it for future use.

It can produce a stereo effect from a money source as the left and right side 
can be controlled separately.

This requires the hardware described in the July 97 issue of Acorn User.

As well as that described in Feb. 1998.

The slider frequencies from left to right are:-63Hz, 160Hz, 400Hz, 1KHz, 
2.5KHz, 6.3KHz, 16KHz 

IMPORTANT - The interface must be powered up before being plugged into the computer.
            If it is not, then there will be audio noise as the sliders are moved,      
            and the mixer chip will lock up and draw a lot of current and get very
            HOT.

LMC835     can be supplied for �17.00 inc. VAT & P&P from the above address.
           Cheques payable to Musbury Consultants.

The Music Fanzine "This is not TV" is available for �2.00 inc. P&P from the above address.
00000000  53 75 70 65 72 20 57 61  68 20 57 61 68 20 56 31  |Super Wah Wah V1|
00000010  2e 30 20 43 6f 70 79 72  69 67 68 74 20 4d 69 6b  |.0 Copyright Mik|
00000020  65 20 43 6f 6f 6b 20 2d  20 4d 75 73 62 75 72 79  |e Cook - Musbury|
00000030  20 43 6f 6e 73 75 6c 74  61 6e 74 73 20 61 6c 6c  | Consultants all|
00000040  20 72 69 67 68 74 73 20  0a 72 65 73 65 72 76 65  | rights .reserve|
00000050  64 20 0a 0a 54 65 6c 2e  20 30 31 37 30 36 20 32  |d ..Tel. 01706 2|
00000060  31 36 37 30 31 0a 35 20  48 65 6c 6d 73 68 6f 72  |16701.5 Helmshor|
00000070  65 20 52 64 2c 0a 48 61  73 6c 69 6e 67 64 65 6e  |e Rd,.Haslingden|
00000080  2c 0a 52 6f 73 73 65 6e  64 61 6c 65 2c 0a 4c 61  |,.Rossendale,.La|
00000090  6e 63 73 2e 0a 42 42 34  20 34 42 47 0a 0a 41 20  |ncs..BB4 4BG..A |
000000a0  57 61 68 20 57 61 68 20  70 65 64 61 6c 20 69 73  |Wah Wah pedal is|
000000b0  20 61 6e 20 65 66 66 65  63 74 73 20 70 65 64 61  | an effects peda|
000000c0  6c 20 75 73 65 64 20 77  69 74 68 20 61 20 67 75  |l used with a gu|
000000d0  69 74 61 72 2e 0a 0a 54  68 69 73 20 61 70 70 6c  |itar...This appl|
000000e0  69 63 61 74 69 6f 6e 20  61 6c 6c 6f 77 73 20 79  |ication allows y|
000000f0  6f 75 20 74 6f 20 63 6f  6e 74 72 6f 6c 20 61 20  |ou to control a |
00000100  37 20 62 61 6e 64 20 73  74 65 72 65 6f 20 47 72  |7 band stereo Gr|
00000110  61 70 68 69 63 73 20 45  71 75 61 6c 69 73 65 72  |aphics Equaliser|
00000120  20 0a 66 72 6f 6d 20 61  20 70 65 64 61 6c 2e 20  | .from a pedal. |
00000130  59 6f 75 20 63 61 6e 20  63 6f 6e 74 72 6f 6c 20  |You can control |
00000140  74 68 65 20 47 72 61 70  68 69 63 73 20 45 71 75  |the Graphics Equ|
00000150  61 6c 69 73 65 72 20 64  79 6e 61 6d 69 63 61 6c  |aliser dynamical|
00000160  6c 79 20 61 73 20 79 6f  75 20 70 6c 61 79 2e 0a  |ly as you play..|
00000170  0a 54 68 65 20 70 65 64  61 6c 20 69 73 20 61 20  |.The pedal is a |
00000180  70 6f 74 20 61 74 74 61  63 68 65 64 20 74 6f 20  |pot attached to |
00000190  74 68 65 20 49 49 43 20  62 75 73 2e 0a 0a 55 73  |the IIC bus...Us|
000001a0  65 20 74 68 65 20 73 6c  69 64 65 72 73 20 74 6f  |e the sliders to|
000001b0  20 70 72 6f 67 72 61 6d  20 75 70 20 61 20 70 61  | program up a pa|
000001c0  74 74 65 72 6e 20 74 68  65 6e 20 79 6f 75 20 63  |ttern then you c|
000001d0  61 6e 20 73 61 76 65 20  69 74 20 66 6f 72 20 66  |an save it for f|
000001e0  75 74 75 72 65 20 75 73  65 2e 0a 0a 49 74 20 63  |uture use...It c|
000001f0  61 6e 20 70 72 6f 64 75  63 65 20 61 20 73 74 65  |an produce a ste|
00000200  72 65 6f 20 65 66 66 65  63 74 20 66 72 6f 6d 20  |reo effect from |
00000210  61 20 6d 6f 6e 65 79 20  73 6f 75 72 63 65 20 61  |a money source a|
00000220  73 20 74 68 65 20 6c 65  66 74 20 61 6e 64 20 72  |s the left and r|
00000230  69 67 68 74 20 73 69 64  65 20 0a 63 61 6e 20 62  |ight side .can b|
00000240  65 20 63 6f 6e 74 72 6f  6c 6c 65 64 20 73 65 70  |e controlled sep|
00000250  61 72 61 74 65 6c 79 2e  0a 0a 54 68 69 73 20 72  |arately...This r|
00000260  65 71 75 69 72 65 73 20  74 68 65 20 68 61 72 64  |equires the hard|
00000270  77 61 72 65 20 64 65 73  63 72 69 62 65 64 20 69  |ware described i|
00000280  6e 20 74 68 65 20 4a 75  6c 79 20 39 37 20 69 73  |n the July 97 is|
00000290  73 75 65 20 6f 66 20 41  63 6f 72 6e 20 55 73 65  |sue of Acorn Use|
000002a0  72 2e 0a 0a 41 73 20 77  65 6c 6c 20 61 73 20 74  |r...As well as t|
000002b0  68 61 74 20 64 65 73 63  72 69 62 65 64 20 69 6e  |hat described in|
000002c0  20 46 65 62 2e 20 31 39  39 38 2e 0a 0a 54 68 65  | Feb. 1998...The|
000002d0  20 73 6c 69 64 65 72 20  66 72 65 71 75 65 6e 63  | slider frequenc|
000002e0  69 65 73 20 66 72 6f 6d  20 6c 65 66 74 20 74 6f  |ies from left to|
000002f0  20 72 69 67 68 74 20 61  72 65 3a 2d 36 33 48 7a  | right are:-63Hz|
00000300  2c 20 31 36 30 48 7a 2c  20 34 30 30 48 7a 2c 20  |, 160Hz, 400Hz, |
00000310  31 4b 48 7a 2c 20 0a 32  2e 35 4b 48 7a 2c 20 36  |1KHz, .2.5KHz, 6|
00000320  2e 33 4b 48 7a 2c 20 31  36 4b 48 7a 20 0a 0a 49  |.3KHz, 16KHz ..I|
00000330  4d 50 4f 52 54 41 4e 54  20 2d 20 54 68 65 20 69  |MPORTANT - The i|
00000340  6e 74 65 72 66 61 63 65  20 6d 75 73 74 20 62 65  |nterface must be|
00000350  20 70 6f 77 65 72 65 64  20 75 70 20 62 65 66 6f  | powered up befo|
00000360  72 65 20 62 65 69 6e 67  20 70 6c 75 67 67 65 64  |re being plugged|
00000370  20 69 6e 74 6f 20 74 68  65 20 63 6f 6d 70 75 74  | into the comput|
00000380  65 72 2e 0a 20 20 20 20  20 20 20 20 20 20 20 20  |er..            |
00000390  49 66 20 69 74 20 69 73  20 6e 6f 74 2c 20 74 68  |If it is not, th|
000003a0  65 6e 20 74 68 65 72 65  20 77 69 6c 6c 20 62 65  |en there will be|
000003b0  20 61 75 64 69 6f 20 6e  6f 69 73 65 20 61 73 20  | audio noise as |
000003c0  74 68 65 20 73 6c 69 64  65 72 73 20 61 72 65 20  |the sliders are |
000003d0  6d 6f 76 65 64 2c 20 20  20 20 20 20 0a 20 20 20  |moved,      .   |
000003e0  20 20 20 20 20 20 20 20  20 61 6e 64 20 74 68 65  |         and the|
000003f0  20 6d 69 78 65 72 20 63  68 69 70 20 77 69 6c 6c  | mixer chip will|
00000400  20 6c 6f 63 6b 20 75 70  20 61 6e 64 20 64 72 61  | lock up and dra|
00000410  77 20 61 20 6c 6f 74 20  6f 66 20 63 75 72 72 65  |w a lot of curre|
00000420  6e 74 20 61 6e 64 20 67  65 74 20 76 65 72 79 0a  |nt and get very.|
00000430  20 20 20 20 20 20 20 20  20 20 20 20 48 4f 54 2e  |            HOT.|
00000440  0a 0a 4c 4d 43 38 33 35  20 20 20 20 20 63 61 6e  |..LMC835     can|
00000450  20 62 65 20 73 75 70 70  6c 69 65 64 20 66 6f 72  | be supplied for|
00000460  20 a3 31 37 2e 30 30 20  69 6e 63 2e 20 56 41 54  | .17.00 inc. VAT|
00000470  20 26 20 50 26 50 20 66  72 6f 6d 20 74 68 65 20  | & P&P from the |
00000480  61 62 6f 76 65 20 61 64  64 72 65 73 73 2e 0a 20  |above address.. |
00000490  20 20 20 20 20 20 20 20  20 20 43 68 65 71 75 65  |          Cheque|
000004a0  73 20 70 61 79 61 62 6c  65 20 74 6f 20 4d 75 73  |s payable to Mus|
000004b0  62 75 72 79 20 43 6f 6e  73 75 6c 74 61 6e 74 73  |bury Consultants|
000004c0  2e 0a 0a 54 68 65 20 4d  75 73 69 63 20 46 61 6e  |...The Music Fan|
000004d0  7a 69 6e 65 20 22 54 68  69 73 20 69 73 20 6e 6f  |zine "This is no|
000004e0  74 20 54 56 22 20 69 73  20 61 76 61 69 6c 61 62  |t TV" is availab|
000004f0  6c 65 20 66 6f 72 20 a3  32 2e 30 30 20 69 6e 63  |le for .2.00 inc|
00000500  2e 20 50 26 50 20 66 72  6f 6d 20 74 68 65 20 61  |. P&P from the a|
00000510  62 6f 76 65 20 61 64 64  72 65 73 73 2e 0a        |bove address..|
0000051e