applause2 - Luajit-based synthesizer based on a stream algebra

Age	Commit message (Collapse)	Author	Files	Lines
2015-04-20	resample() and toplot() methods	Robin Haberkorn	1	-0/+49

2015-04-20	added bit-crusher effect	Robin Haberkorn	1	-0/+6

2015-04-20	filters: handle input streams shorter than the frequency stream	Robin Haberkorn	1	-18/+24

2015-04-20	filtering: handle frequency streams short than the input stream	Robin Haberkorn	1	-4/+16

2015-04-20	added filter streams adapted from ChucK and revised wave form functions	Robin Haberkorn	1	-19/+373
	* LPF, HPF, BPF, BRF filters are 2nd order Butterworth filters. Derived verbatim from ChucK's implementation. This can probably be optimized by caching the tan/cos functions. Also, they do not yet handle frequency streams shorter than the stream to filter. * Basic wave forms are now Stream methods to allow concatenative style of FM synthesis (or LFOs). To generate e.g. a sine wave with constant frequency, you can still write Stream.SinOsc(440); or tostream(440):SinOsc()
2015-04-11	stop garbage collector temporarily during play()	Robin Haberkorn	1	-1/+16
	This improves the real-time properties of sample generation since it avoids CPU spkikes. On the other hand, this may not be ideal as playing a long streams could have non-constant space requirements now. A proper solution would probably involve calling the garbage collector incrementally during the play() loop.
2015-04-11	added custom interactive Lua interpreter for evaluating applause expressions	Robin Haberkorn	4	-1/+307
	* implements Stream:play() using Jack as the audio backend
2015-04-09	additional useful stream operations	Robin Haberkorn	1	-13/+54

2015-04-07	replaced co-routine based implementation with closures	Robin Haberkorn	1	-72/+153
	* this improves performance by 10 times (both lua5.1 and luajit) * also, when using luajit, there appears to be little peformance loss when using stream compositions instead of maps (which are sometimes even slower!?)
2015-04-07	initial commit based on coroutines	Robin Haberkorn	1	-0/+462