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!Spectre/!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.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

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Filename: !Spectre/!Help
Read OK:
File size: 03ED bytes
Load address: 0000
Exec address: 0000
File contents
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           !Spectre 1.03 (17 Oct 1990)
               � Warner H. Hepping
-------------------------------------------------

Spectre does a rough, but extremely fast power
spectrum estimation in a window.
It currently only produces a meaningfull output
in four-voice mode!

The analysis is performed using an optimised
Fast Fourier Transformation over 64 points.
After that a two-sided power estimate is
performed.

Clicking adjust in the window changes the fore-
ground colour of the graph!                

Just check it out with the ST Module Player!

/-----------------------------------------------\
|    All research and coding in assembler by    |
|                W.H.Hepping                    |
|               Kochstraat 128                  |
|              9728 KH Groningen                |
|               The Netherlands                 |
\-----------------------------------------------/

=================================================
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*
00000030  3d 0a 20 20 20 20 20 20  20 20 20 20 20 21 53 70  |=.           !Sp|
00000040  65 63 74 72 65 20 31 2e  30 33 20 28 31 37 20 4f  |ectre 1.03 (17 O|
00000050  63 74 20 31 39 39 30 29  0a 20 20 20 20 20 20 20  |ct 1990).       |
00000060  20 20 20 20 20 20 20 20  a9 20 57 61 72 6e 65 72  |        . Warner|
00000070  20 48 2e 20 48 65 70 70  69 6e 67 0a 2d 2d 2d 2d  | H. Hepping.----|
00000080  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
000000a0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 0a 0a 53  |-------------..S|
000000b0  70 65 63 74 72 65 20 64  6f 65 73 20 61 20 72 6f  |pectre does a ro|
000000c0  75 67 68 2c 20 62 75 74  20 65 78 74 72 65 6d 65  |ugh, but extreme|
000000d0  6c 79 20 66 61 73 74 20  70 6f 77 65 72 0a 73 70  |ly fast power.sp|
000000e0  65 63 74 72 75 6d 20 65  73 74 69 6d 61 74 69 6f  |ectrum estimatio|
000000f0  6e 20 69 6e 20 61 20 77  69 6e 64 6f 77 2e 0a 49  |n in a window..I|
00000100  74 20 63 75 72 72 65 6e  74 6c 79 20 6f 6e 6c 79  |t currently only|
00000110  20 70 72 6f 64 75 63 65  73 20 61 20 6d 65 61 6e  | produces a mean|
00000120  69 6e 67 66 75 6c 6c 20  6f 75 74 70 75 74 0a 69  |ingfull output.i|
00000130  6e 20 66 6f 75 72 2d 76  6f 69 63 65 20 6d 6f 64  |n four-voice mod|
00000140  65 21 0a 0a 54 68 65 20  61 6e 61 6c 79 73 69 73  |e!..The analysis|
00000150  20 69 73 20 70 65 72 66  6f 72 6d 65 64 20 75 73  | is performed us|
00000160  69 6e 67 20 61 6e 20 6f  70 74 69 6d 69 73 65 64  |ing an optimised|
00000170  0a 46 61 73 74 20 46 6f  75 72 69 65 72 20 54 72  |.Fast Fourier Tr|
00000180  61 6e 73 66 6f 72 6d 61  74 69 6f 6e 20 6f 76 65  |ansformation ove|
00000190  72 20 36 34 20 70 6f 69  6e 74 73 2e 0a 41 66 74  |r 64 points..Aft|
000001a0  65 72 20 74 68 61 74 20  61 20 74 77 6f 2d 73 69  |er that a two-si|
000001b0  64 65 64 20 70 6f 77 65  72 20 65 73 74 69 6d 61  |ded power estima|
000001c0  74 65 20 69 73 0a 70 65  72 66 6f 72 6d 65 64 2e  |te is.performed.|
000001d0  0a 0a 43 6c 69 63 6b 69  6e 67 20 61 64 6a 75 73  |..Clicking adjus|
000001e0  74 20 69 6e 20 74 68 65  20 77 69 6e 64 6f 77 20  |t in the window |
000001f0  63 68 61 6e 67 65 73 20  74 68 65 20 66 6f 72 65  |changes the fore|
00000200  2d 0a 67 72 6f 75 6e 64  20 63 6f 6c 6f 75 72 20  |-.ground colour |
00000210  6f 66 20 74 68 65 20 67  72 61 70 68 21 20 20 20  |of the graph!   |
00000220  20 20 20 20 20 20 20 20  20 20 20 20 20 0a 0a 4a  |             ..J|
00000230  75 73 74 20 63 68 65 63  6b 20 69 74 20 6f 75 74  |ust check it out|
00000240  20 77 69 74 68 20 74 68  65 20 53 54 20 4d 6f 64  | with the ST Mod|
00000250  75 6c 65 20 50 6c 61 79  65 72 21 0a 0a 2f 2d 2d  |ule Player!../--|
00000260  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
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00000290  20 20 20 20 41 6c 6c 20  72 65 73 65 61 72 63 68  |    All research|
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000002b0  73 73 65 6d 62 6c 65 72  20 62 79 20 20 20 20 7c  |ssembler by    ||
000002c0  0a 7c 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |.|              |
000002d0  20 20 57 2e 48 2e 48 65  70 70 69 6e 67 20 20 20  |  W.H.Hepping   |
000002e0  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000002f0  20 7c 0a 7c 20 20 20 20  20 20 20 20 20 20 20 20  | |.|            |
00000300  20 20 20 4b 6f 63 68 73  74 72 61 61 74 20 31 32  |   Kochstraat 12|
00000310  38 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |8               |
00000320  20 20 20 7c 0a 7c 20 20  20 20 20 20 20 20 20 20  |   |.|          |
00000330  20 20 20 20 39 37 32 38  20 4b 48 20 47 72 6f 6e  |    9728 KH Gron|
00000340  69 6e 67 65 6e 20 20 20  20 20 20 20 20 20 20 20  |ingen           |
00000350  20 20 20 20 20 7c 0a 7c  20 20 20 20 20 20 20 20  |     |.|        |
00000360  20 20 20 20 20 20 20 54  68 65 20 4e 65 74 68 65  |       The Nethe|
00000370  72 6c 61 6e 64 73 20 20  20 20 20 20 20 20 20 20  |rlands          |
00000380  20 20 20 20 20 20 20 7c  0a 5c 2d 2d 2d 2d 2d 2d  |       |.\------|
00000390  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
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*
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