INVESTIGADORES
ACCOLTI MOSTAZO Ernesto Enrique
congresos y reuniones científicas
Título:
Fast and controllable box-shaped room impulse response algorithm
Autor/es:
ACCOLTI, ERNESTO; MIYARA, FEDERICO
Lugar:
Rosario
Reunión:
Congreso; RPIC (Reunión de Trabajo en Procesamiento de la Información y Control); 2009
Institución organizadora:
FCEIA, Universidad Nacional de Rosario
Resumen:
A quite realistic room impulse response (RIR) algorithm has been developed. The underlying model is based on physical properties of RIRs. Some approximations and simplifications based on physical and psychoacoustic principles allow a fast calculation with negligible errors in energy or psychoacoustic parameters. Early reverberation (ER) is calculated by means of the image source method (ISM) until a transition time is reached when the sound field may be considered random. Based on statistical acoustics theory, late reverberation (LR) is modelled from gaussian noise taking into account the frequency-dependent energy decay curve and an ISM-based, smoothed peak density growth. To accomplish a realistic energy balance between ER and LR they are compared during an overlapping interval.
