文件列表:

Roomsimove (0, 2010-04-01)
Roomsimove\cardioid.mat (49303, 2010-03-10)
Roomsimove\roomsimove.m (2945, 2010-03-10)
Roomsimove\source_config.txt (154, 2010-03-10)
Roomsimove\roomsimove_apply.m (1977, 2010-03-10)
Roomsimove\room_sensor_config.txt (870, 2010-03-10)
Roomsimove\omnidirectional.mat (33112, 2010-03-10)
Roomsimove\RT60toA.m (1207, 2010-04-01)
Roomsimove\roomsimove_single.m (13296, 2010-07-04)

SIMULATION OF MOVING SOURCES This software is designed to simulate the recording of a moving source by one or more microphones in a reverberant room. To compute the signal x recorded at the microphones defined in room_sensor_config.txt when a source emits the signal s sampled at fs Hz while moving along the piecewise linear path defined in source_config.txt, type [time,HH]=roomsimmove('room_sensor_config.txt','source_config.txt',fs); x=roomsimove_apply(time,HH,s,fs); Examples of room/microphone configurations and source paths are given in room_sensor_config.txt and source_config.txt respectively. Moving room impulse responses are obtained by linear interpolation of static room impulse reponses computed at discrete points over the path. A theoretical justification of this approach along with some error bounds is given in roomsimove.m. SIMULATION OF STATIC SOURCES The static room impulse reponses are computed by roomsimove_single.m, which is a stripped-down version of the Roomsim toolbox version 3.3 by Douglas R. Campbell previously available at http://media.paisley.ac.uk/~campbell/Roomsim/ Differences with Roomsim version 3.3: - three or more sensors allowed - faster implementation - distance and air attenuation applied to all image sources whatever their distance and modeled by a variable filter length (usually shorter) - no low-pass filter included in the fractional delay filters - no check of sensor/source positions (must be in the room and distant from at least 5 cm) - no check of simulation time or memory overflow Default parameters: humidity=40 temperature=20 (corresponding to c=343m/s) order=-1 (default reflection order) H_length=-1 (default filter length) air_F=1 (air attenuation) dist_F=1 (distance attenuation) Fc_HP=20 (high-pass filter above 20Hz) smooth_F=1 (fractional delay filters) alpha_F=1 (surface opacity = reflectivity) LICENSE Copyright 2008 Emmanuel Vincent for all software Copyright 2003 Douglas R. Campbell for roomsimove_single.m only This software is distributed under the terms of the GNU Public License version 3 (http://www.gnu.org/licenses/gpl.txt)

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