
Playing music 9
© 1991 Ulf Petersen/Sven Tegethoff PDFied by Alphasys in 2010
forwards/back only works on a per-sequence basis.
11 Loading and managing samples
To be able to use samples in a song, you'll need to load them beforehand. To enter that editor, click
the "ARRANGE"-icon.
To the left, you'll see a listing of all the samples currently loaded. (To a maximum of 15 samples.)
Sample number 0 can't be used, as the value 0 signifies "none".
To insert a digi-sound, just click on the first free entry, (with an empty table that would be entry 1)
then select "INSERT" and fill in the filename. On the original disk, we've included several drum
samples with the ".SMP" extension. If an entry is already in use, all consecutive entries move up one
place, and the new sample is loaded in the selected spot.
With the function "DELETE", a single sample can be removed. "SAVE" gives the oportunity to save a
single sample. "TEST" is in there so you can make sure you actually loaded the right sample in the
spot. Using "TEST" gives a slightly lower output quality in comparison to the quality on playback of
the song.
If a sample is deleted within a song, for example because it's not used anymore in the piece, this
would pose a slight problem, because all the sequences woud have to be changed to reflect the
change in order. No need! The BMC will automaticly change all sample numbers in the Sequencer on
the fly!
The total amount of space taken by samples can't exceed the magic number of $2000 bytes (4096
bytes). The remaining free space for samples is therefore shown on the bottom right side. If a sample
will not fit in the remaining space available, its loading process will be aborted.
All 4-bit samples, saved in the ".COM" format, can be loaded. These samples should have been
created with a 7.7kHz frequency, which boils down to one sample every 2 scanlines.
For ease of use, the whole sample pack can be saved and loaded in one operation. See Disk-
operations for details.
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