Hello, first I'd like to use the occasion and thank the programmers, who is developing Sox, for their amazing work! And here is my question. Sox allows one to generate a tone whose frequency changes from freq1 to freq2: play -n synth 4 sine 200-400 If one needs the tone to oscillate between these frequencies, this can be achieved e.g. with the following: play -n synth 4 sine 200:400 sine 400:200 delay 0 4 remix 1,2 1,2 repeat 999 The tone will oscillate between 200 and 400 Hz with the 4 second period. With even more trickery one can achieve that several tones simultaneously oscillate between different frequencies with *different* periods. That is one tone alternates between frequencies more faster than another. What I cannot figure out how to achieve (and this is my question) is the following: is it possible with Sox to generate a stream where several tones oscillate between different frequencies with different periods **and** these periods are themselves oscillate (that is for each tone the speed of alternating between frequencies constantly changes back and forth between some given boundaries)? Albert. _______________________________________________ Sox-users mailing list Sox-users@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/sox-users
