AmstradCPC6128-hypertext-en-Sinewalker

Volume Envelope
To make the volume vary within the duration of the note, you can specify a volume
envelope using the separate command EN V. You can in fact make a number of
different volume envelopes, and like the SOU N D command, each has its own
reference number. If you have created a volume envelope with a reference number of
1 , and you wish to use it in a SOU N D command, then where the parameter is required, type in 1. Creating a volume envelope will be explained
shortly.
Tone Envelope
To make the tone or pitch vary within the duration ofthe note, you can specify a tone
envelope using the separate command ENT. You can in fact make a numher of
different tone envelopes, and like the SOU N D command, each has its own reference
number. If you have created a tone envelope with a reference number of 1, and you
wish to use it in a SOU N D command, then where the parameter is
required, type in 1. Creating a tone envelope will be explained shortly.
Noise
is the last parameter ofthe SOU N D command. A range of noise is available by
varying the parameter between 1 and 3 1 . Add a parameter of 2 at the
end of the SOU N D command and listen to the effect. Then change the
parameter to 27 and listen to the difference. Type in:
10 sound 1,239,200,15",2
Note the two 'blank' parameters (",) before the parameter of 2. This is
because we haven't created a nor a .
Creating a Volume Envelope
The volume envelope command is EN V. In its simplest form, the command has 4
parameters: The command is typed in as:
ENV , , ,
As before, let's look at the parameters one by one.
Chapter 1 Page 70 Foundation Course