Home » Archimedes archive » Archimedes World » AW-1991-03.adf » !AWMar91/Goodies/PD/!ReadMe

!AWMar91/Goodies/PD/!ReadMe

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.

Tape/disk: Home » Archimedes archive » Archimedes World » AW-1991-03.adf
Filename: !AWMar91/Goodies/PD/!ReadMe
Read OK: ✔
File size: 109E bytes
Load address: FFFFFF42
Exec address: E05A34AC
File contents
                                  !DSEdit
                                  -------

                             By Jason Williams
                             -----------------

Any sound file (DSEdit or SoundSynth icons) can be loaded by double-clicking
it's file icon. Any file at all can be loaded by dragging it onto the DSEdit
icon.

If you click anywhere along the 'Piano keyboard' display, the speed of the
sound will be changed in proportion to where you clicked, and the sound will
be played. Three red lines appear on this 'keyboard' at the approximate
speed-setting positions for sounds sampled at 7.5kHz, 11kHz, and 22kHz,
which are the most common.

Double-clicking or dragging the file icon of a "SoundSynth" sound will load
the sound into DSEdit, and convert it into DSEdit format (by EORing with
128) This will leave the Soundsynth header (of approx 500 bytes) on the
start of the sound, so you will have to manually delete this to remove the
'click' heard when playing the sound.

After you have clicked in a sound's display window, the window will become
highlighted (the title bar will turn yellow). Now, several shortcuts are
available as follows:
  SPACE       will play the selected part of the sound
  RETURN      will play the entire sound
  DELETE or � will delete the selected part of the
              sound
  Page up     will increase the volume of the sound
              (=Amplify by 150%)
  Page down   will decrease the volume
              (=Amplify by 75%)
  Copy        will select the entire sound

It is possible to merge two sounds in the following ways: (The sound being
merged starts at the start of the selected area, and continues to the end of
the INSERTED sound)

* Insert the sound
  (This splits the destination sound into two
   portions, and inserts the merging sound between
   these portions)
* Overwrite one sound with the other
  (This replaces the bytes of one sound with the sound
  being merged)
* Add the bytes of the two sounds together
  (This can result in the sound becoming too loud, so
  use the following option instead:)
* Average the bytes together
  (This averages the two sounds together, which
  generally lowers the volume. The effect is to mix
  the two sounds as if they were both being played at
  once.)    

To do this, double-click the file icon for the first sound to load it into
DSEdit, select the area you wish to affect,then drag the file icon of the
second sound into the window of the first sound. A dialogue window will
appear- Select the type of merge you wish to perform, and click 'OK'.
Clicking 'cancel[ will abort the operation.

------------------------------------------------------

Also, several bugs have been removed since v0.93:
  
All options that are currently unimplemented are now shaded grey on the menu.

"Add constant" and "Make silence" now work (I had confused the two writeable
menu items, so the numbers coming out were incompatible!)

If more room is NOT needed to extend a sound by the required amount (e.g. to
insert 128 bytes, etc.), the allocation now works! (This seems to have fixed
the sound merging, too)

The WimpSlot allocation has been reduced from the developmental 160kB to the
actually needed 96kB!

Please note: This program is not guaranteed to work as expected. In fact, I
can practically guarantee that it will crash (locking up the computer
entirely) at some time! Usually, this only happens when insufficient memory
is available in the RMA for an operation to be carried out, so I suggest you
check the free memory before trying to load big sound files!

Note also that because sounds are loaded into the RMA area, if you run any
applications or load any modules while any sounds are loaded, the RMA space
left when the sound windows are closed may not be recoverable... in other
words, your RMA will gradually fill with empty bits of memory that can't be
reclaimed! This will eventually cause the system to grind to a halt. The
only way to fix this is to CTRL-Break (Reset the system), so I advise that
to prevent this becoming necessary, you only run apps when there are no
sound windows open.


This program is PD, but � Copyright '90 Jason Williams. I make no guarantees
as to it's performance: Use it at your own risk!

00000000  0a 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |.               |
00000010  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000020  20 20 20 21 44 53 45 64  69 74 0a 20 20 20 20 20  |   !DSEdit.     |
00000030  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000040  20 20 20 20 20 20 20 20  20 20 20 20 20 2d 2d 2d  |             ---|
00000050  2d 2d 2d 2d 0a 0a 20 20  20 20 20 20 20 20 20 20  |----..          |
00000060  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000070  20 20 20 42 79 20 4a 61  73 6f 6e 20 57 69 6c 6c  |   By Jason Will|
00000080  69 61 6d 73 0a 20 20 20  20 20 20 20 20 20 20 20  |iams.           |
00000090  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
000000a0  20 20 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |  --------------|
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00000a40  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
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00000bf0  61 74 69 6f 6e 20 6e 6f  77 20 77 6f 72 6b 73 21  |ation now works!|
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00000c50  62 65 65 6e 20 72 65 64  75 63 65 64 20 66 72 6f  |been reduced fro|
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00000ca0  6f 74 65 3a 20 54 68 69  73 20 70 72 6f 67 72 61  |ote: This progra|
00000cb0  6d 20 69 73 20 6e 6f 74  20 67 75 61 72 61 6e 74  |m is not guarant|
00000cc0  65 65 64 20 74 6f 20 77  6f 72 6b 20 61 73 20 65  |eed to work as e|
00000cd0  78 70 65 63 74 65 64 2e  20 49 6e 20 66 61 63 74  |xpected. In fact|
00000ce0  2c 20 49 0a 63 61 6e 20  70 72 61 63 74 69 63 61  |, I.can practica|
00000cf0  6c 6c 79 20 67 75 61 72  61 6e 74 65 65 20 74 68  |lly guarantee th|
00000d00  61 74 20 69 74 20 77 69  6c 6c 20 63 72 61 73 68  |at it will crash|
00000d10  20 28 6c 6f 63 6b 69 6e  67 20 75 70 20 74 68 65  | (locking up the|
00000d20  20 63 6f 6d 70 75 74 65  72 0a 65 6e 74 69 72 65  | computer.entire|
00000d30  6c 79 29 20 61 74 20 73  6f 6d 65 20 74 69 6d 65  |ly) at some time|
00000d40  21 20 55 73 75 61 6c 6c  79 2c 20 74 68 69 73 20  |! Usually, this |
00000d50  6f 6e 6c 79 20 68 61 70  70 65 6e 73 20 77 68 65  |only happens whe|
00000d60  6e 20 69 6e 73 75 66 66  69 63 69 65 6e 74 20 6d  |n insufficient m|
00000d70  65 6d 6f 72 79 0a 69 73  20 61 76 61 69 6c 61 62  |emory.is availab|
00000d80  6c 65 20 69 6e 20 74 68  65 20 52 4d 41 20 66 6f  |le in the RMA fo|
00000d90  72 20 61 6e 20 6f 70 65  72 61 74 69 6f 6e 20 74  |r an operation t|
00000da0  6f 20 62 65 20 63 61 72  72 69 65 64 20 6f 75 74  |o be carried out|
00000db0  2c 20 73 6f 20 49 20 73  75 67 67 65 73 74 20 79  |, so I suggest y|
00000dc0  6f 75 0a 63 68 65 63 6b  20 74 68 65 20 66 72 65  |ou.check the fre|
00000dd0  65 20 6d 65 6d 6f 72 79  20 62 65 66 6f 72 65 20  |e memory before |
00000de0  74 72 79 69 6e 67 20 74  6f 20 6c 6f 61 64 20 62  |trying to load b|
00000df0  69 67 20 73 6f 75 6e 64  20 66 69 6c 65 73 21 0a  |ig sound files!.|
00000e00  0a 4e 6f 74 65 20 61 6c  73 6f 20 74 68 61 74 20  |.Note also that |
00000e10  62 65 63 61 75 73 65 20  73 6f 75 6e 64 73 20 61  |because sounds a|
00000e20  72 65 20 6c 6f 61 64 65  64 20 69 6e 74 6f 20 74  |re loaded into t|
00000e30  68 65 20 52 4d 41 20 61  72 65 61 2c 20 69 66 20  |he RMA area, if |
00000e40  79 6f 75 20 72 75 6e 20  61 6e 79 0a 61 70 70 6c  |you run any.appl|
00000e50  69 63 61 74 69 6f 6e 73  20 6f 72 20 6c 6f 61 64  |ications or load|
00000e60  20 61 6e 79 20 6d 6f 64  75 6c 65 73 20 77 68 69  | any modules whi|
00000e70  6c 65 20 61 6e 79 20 73  6f 75 6e 64 73 20 61 72  |le any sounds ar|
00000e80  65 20 6c 6f 61 64 65 64  2c 20 74 68 65 20 52 4d  |e loaded, the RM|
00000e90  41 20 73 70 61 63 65 0a  6c 65 66 74 20 77 68 65  |A space.left whe|
00000ea0  6e 20 74 68 65 20 73 6f  75 6e 64 20 77 69 6e 64  |n the sound wind|
00000eb0  6f 77 73 20 61 72 65 20  63 6c 6f 73 65 64 20 6d  |ows are closed m|
00000ec0  61 79 20 6e 6f 74 20 62  65 20 72 65 63 6f 76 65  |ay not be recove|
00000ed0  72 61 62 6c 65 2e 2e 2e  20 69 6e 20 6f 74 68 65  |rable... in othe|
00000ee0  72 0a 77 6f 72 64 73 2c  20 79 6f 75 72 20 52 4d  |r.words, your RM|
00000ef0  41 20 77 69 6c 6c 20 67  72 61 64 75 61 6c 6c 79  |A will gradually|
00000f00  20 66 69 6c 6c 20 77 69  74 68 20 65 6d 70 74 79  | fill with empty|
00000f10  20 62 69 74 73 20 6f 66  20 6d 65 6d 6f 72 79 20  | bits of memory |
00000f20  74 68 61 74 20 63 61 6e  27 74 20 62 65 0a 72 65  |that can't be.re|
00000f30  63 6c 61 69 6d 65 64 21  20 54 68 69 73 20 77 69  |claimed! This wi|
00000f40  6c 6c 20 65 76 65 6e 74  75 61 6c 6c 79 20 63 61  |ll eventually ca|
00000f50  75 73 65 20 74 68 65 20  73 79 73 74 65 6d 20 74  |use the system t|
00000f60  6f 20 67 72 69 6e 64 20  74 6f 20 61 20 68 61 6c  |o grind to a hal|
00000f70  74 2e 20 54 68 65 0a 6f  6e 6c 79 20 77 61 79 20  |t. The.only way |
00000f80  74 6f 20 66 69 78 20 74  68 69 73 20 69 73 20 74  |to fix this is t|
00000f90  6f 20 43 54 52 4c 2d 42  72 65 61 6b 20 28 52 65  |o CTRL-Break (Re|
00000fa0  73 65 74 20 74 68 65 20  73 79 73 74 65 6d 29 2c  |set the system),|
00000fb0  20 73 6f 20 49 20 61 64  76 69 73 65 20 74 68 61  | so I advise tha|
00000fc0  74 0a 74 6f 20 70 72 65  76 65 6e 74 20 74 68 69  |t.to prevent thi|
00000fd0  73 20 62 65 63 6f 6d 69  6e 67 20 6e 65 63 65 73  |s becoming neces|
00000fe0  73 61 72 79 2c 20 79 6f  75 20 6f 6e 6c 79 20 72  |sary, you only r|
00000ff0  75 6e 20 61 70 70 73 20  77 68 65 6e 20 74 68 65  |un apps when the|
00001000  72 65 20 61 72 65 20 6e  6f 0a 73 6f 75 6e 64 20  |re are no.sound |
00001010  77 69 6e 64 6f 77 73 20  6f 70 65 6e 2e 0a 0a 0a  |windows open....|
00001020  54 68 69 73 20 70 72 6f  67 72 61 6d 20 69 73 20  |This program is |
00001030  50 44 2c 20 62 75 74 20  a9 20 43 6f 70 79 72 69  |PD, but . Copyri|
00001040  67 68 74 20 27 39 30 20  4a 61 73 6f 6e 20 57 69  |ght '90 Jason Wi|
00001050  6c 6c 69 61 6d 73 2e 20  49 20 6d 61 6b 65 20 6e  |lliams. I make n|
00001060  6f 20 67 75 61 72 61 6e  74 65 65 73 0a 61 73 20  |o guarantees.as |
00001070  74 6f 20 69 74 27 73 20  70 65 72 66 6f 72 6d 61  |to it's performa|
00001080  6e 63 65 3a 20 55 73 65  20 69 74 20 61 74 20 79  |nce: Use it at y|
00001090  6f 75 72 20 6f 77 6e 20  72 69 73 6b 21 0a        |our own risk!.|
0000109e

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