Journal Forum

Sound Board: High-Resolution Audio - October 2015

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
1 comment

Access Journal Forum

AES E-Library

Broad-Band Acoustic Noise Reduction using a Novel Frequency Depended Parametric Wiener Filter. Implementations using Filter-bank, STFT and Wavelet Analysis/Synthesis Techniques.

Document Thumbnail

Equivalent masking noise estimation could be introduced in conventional broad-band acoustic noise reduction, to provide a new class of modified techniques. The psycho-acoustical facts exploited in this paper, result to a frequency depended parametric Wiener filter. A discussion of classical spectral subtraction, and a proof of equivalence under certain conditions to Wiener filtering, is given first. The concept of parametric Wiener filter is then examined, and a frequency dependence based on the model of pure tones masked by broad-band noise, is introduced. Filter-bank, STFT and wavelet implementations of the new approach, are finally compared to classical spectral subtraction for background noise reduction in old 78 rpm music disk recordings and noisy speech tape recordings.

AES Convention: Paper Number:
Publication Date:

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.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society