Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015
Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
The Measurement and Calibration of Sound Reproducing Systems - July 2015
Frequency-Domain Processors for Efficient Removal of Noise and Unwanted Audio Events
Filtering heavily polluted audio signals with low-cut, high-cut or notch filters helps only if the spectrum of disturbances does not overlap the desired signal. Unfortunately, this is rarely the case in real situations. Therefore using frequencydomain methods is the only way to achieve dramatic improvements when cleaning up noisy signals. Spectral denoising works well in the case of broadband, smoothly changing noise, however, the situation become hopeless when the noise character changes abruptly and the S/N ratio is around zero decibels. We present a unique tool, reNOVAtor, working in 3D domain (time, frequency, amplitude) allowing efficient removal of tenacious disturbances. An intuitive manmachine interface allows localization, identification, and very precise removal of unwanted audio events. Special functions like automatic detection of clicks, tones, and harmonics significantly accelerate the workflow. A special difference function allows monitoring of the signal portion being removed.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.