def chirp(self,time,start,stop,decay):
return N.sin(
2. * N.pi * (
norm_frequency(stop)
+ (
norm_frequency(start-stop)
* N.exp(-1. * time / norm_time(decay))
)
) * time
)
def gaussian(self,time,decay):
return N.exp(
-1. * N.power(time / norm_time(decay), 2)
)
def envelope(self,time,decay):
return N.exp(-1. * time / norm_time(decay))