Room impulse response simulator using python
Copyright 2003 Douglas R. Campbell
Copyright 2008-2016 Emmanuel Vincent
Copyright 2017 Sunit Sivasankaran
This software is a python version of the stripped-down version of the Roomsim toolbox version 3.3 by Douglas R. Campbell. The matlab function for the stripped down version as well as RIR generation for moving sources can be found here: Roomsimove, http://homepages.loria.fr/evincent/software/Roomsimove.zip
If you find the code useful, please cite the following reference: Room Impulse Response Generator, https://github.com/sunits/rir_simulator_python
One difference between the matlab version and this code is that RT60 value is assumed to be same for all frequencies.
Tested for sampling rate of 16000 Hz.
python roomsimove_single.py config_file source_pos_x source_pos_y source_pos_z output_file
The help options will also give the details
python roomsimove_single.py -h
using config_file
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import roomsimove_single
sim_rir = roomsimove_single.RoomSim.init_from_config_file(config_file)
source_pos = [1, 1, 1]
rir = sim_rir.create_rir(source_pos)
using default values of absorption coeffecients
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import roomsimove_single
room_dim = [4.2, 3.4, 5.2]
room = roomsimove_single.Room(room_dim)
mic_pos = [2, 2, 2]
mic1 = roomsimove_single.Microphone(mic_pos, 1, \
orientation=[0.0, 0.0, 0.0], direction='omnidirectional'):
mic_pos = [2, 2, 1]
mic2 = roomsimove_single.Microphone(mic_pos, 2, \
orientation=[0.0, 0.0, 0.0], direction='cardioid'):
mics = [mic1, mic2]
sampling_rate = 16000
sim_rir = roomsimove_single.RoomSim(sample_rate, room, mics, RT60=300)
source_pos = [1, 1, 1]
rir = sim_rir.create_rir(source_pos)
import fftfilt
import sounfile as sf
# Assuming single channel data
[data, fs] = sf.read(wav_file)
reverb_data = fftfilt.fftfilt(rir,data)