Tutorials and Topics - Peabody Computer Music

Tutorial 14Sampling:Playback with loopsIn the tutorial patch, three different buffer~ objects are loaded with AIFF files so that asingle groove~ object can switch between various samples instantly. The message set,followed by the name of a buffer~, refers groove~ to that new buffer~ immediately. (Ifgroove~ always referred to the same buffer~, and we used read messages to change thecontents of the buffer~, some time would be needed to open and load each new file.)Refer groove~ to a different buffer~ with a set message• Click on the preset object to play the samples in different ways.The first preset just functions as an “Off” button. The next three presets play the threebuffer~ objects at normal speed without looping. The rest of the presets demonstrate avariety of sound possibilities using different playback speeds on different excerpts of thebuffered files, with or without looping.• You may want to experiment with your own settings by changing the user interfaceobjects directly.You can control all aspects of the playback by changing the user interface object settingsIf you want to create smooth undetectable loops with groove~, you can use the loopinterpmessage to enable crossfades between the end of a loop and the beginning of the next passthrough the loop to smooth out the transition back to the start point (see the groove~reference page for more information on this message). If the buffer~ contains an AIFF filethat has its own loop points—points established in a separate audio editingprogram—there is a way to use those loop points to set the loop points of groove~.131