Performance Evaluation Issues in Real-Time Parallel Signal Processing and Control

1997 ◽  
Vol 42 (1) ◽  
pp. 67-74 ◽  
Author(s):  
M.O. Tokhi ◽  
M.A. Hossain ◽  
M.J. Baxter ◽  
P.J. Fleming
Keyword(s):  
Signal Processing ◽  
Performance Evaluation ◽  
Real Time ◽  
And Control ◽  
Parallel Signal Processing

Composing Vocal Distortion: A Tool for Real-Time Generation of Roughness

2019 ◽  
Vol 42 (4) ◽  
pp. 26-40 ◽  
Author(s):  
Marta Gentilucci ◽  
Luc Ardaillon ◽  
Marco Liuni
Keyword(s):  
Signal Processing ◽  
Real Time ◽  
Amplitude Modulation ◽  
Software Tool ◽  
Parametric Control ◽  
Opera Singers ◽  
And Control ◽  
Manipulation And Control

This article presents the results of collaboration between a composer and researchers in the context of vocal roughness and composing for voice. Our research focused on parametric control of distortion. Specifically, we present a software device that supports the manipulation and control of vocal roughness in real time, using a method based on amplitude modulation and filtering. The compositional interest in working with classically trained opera singers and with vocal distortion led us to initiate research in the signal-processing domain. Our goal was to develop a tool that could facilitate the production of distorted sounds without direct effort on the part of the singer. In this way, the singer can perform a nondistorted or lightly distorted sound, and the software tool will generate or magnify the distortion in real time.

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