Note
Click here to download the full example code
Cochlear modelsΒΆ
Example of the use of the cochlear models (DRNL
,
DCGC
and TanCarney
) available in the library.
from brian2 import *
from brian2hears import *
simulation_duration = 50*ms
set_default_samplerate(50*kHz)
sound = whitenoise(simulation_duration)
sound = sound.atlevel(50*dB) # level in rms dB SPL
cf = erbspace(100*Hz, 1000*Hz, 50) # centre frequencies
param_drnl = {}
param_drnl['lp_nl_cutoff_m'] = 1.1
param_dcgc = {}
param_dcgc['c1'] = -2.96
figure(figsize=(10, 4))
for i, (model, param) in enumerate([(DRNL, param_drnl),
(DCGC, param_dcgc),
(TanCarney, None)]):
fb = model(sound, cf, param=param)
out = fb.process()
subplot(1, 3, i+1)
title(model.__name__)
imshow(flipud(out.T), aspect='auto', extent=(0, simulation_duration/ms, 0, len(cf)-1))
xlabel('Time (ms)')
if i==0:
ylabel('CF (kHz)')
yticks([0, len(cf)-1], [cf[0]/kHz, cf[-1]/kHz])
else:
yticks([])
tight_layout()
show()
Total running time of the script: ( 0 minutes 2.613 seconds)