★ APPLICATIONS ★ CREATION MUSICAL ★ Sound advice|Popular Computing Weekly) ★ |
| Sound Experiment (Popular Computing Weekly) | Applications Creation Musical |
Colin O'Neill explores the possibilities of sound on the new Amstrad CPC 464 micro The program is a utility which enables the user to explore the complex sound possibilities of the Amstrad. The program is designed to be used in conjunction with the manual, and the variable names used in chapter 6 of the manual have been used as far as possible. However, as the volume envelope parameters are so extensive, the numeric keypad keys 1-9 have been used. The top row controls the first three parameters, the second row the following three, and the third row the third set. The two remaining volume envelope sections are unused, but could easily be added if required. Please note that use of the volume envelope will automatically change the duration of the note. The envelope controls have been kept as simple as possible; entry of the first section of the envelope will automatically set the second as a reverse of the first, the final three sections are unused but could be added if required. To change the parameters, hold down the required key and the up or down arrow key to increase or decrease the values. The note will sound during this procedure so the effect of the change can be monitored. The values of the parameters will be displayed on the screen simultaneously; these can be written down when an interesting sound is generated for subsequent use in other programs. The program makes use of some of the interesting features of Amstrad's Basic, such as windows and While/Wend loops.
|
