Journal Forum

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

The Measurement and Calibration of Sound Reproducing Systems - July 2015

Access Journal Forum

AES E-Library

Problems of Error Masking in Audio Data Compression Systems

Document Thumbnail

This paper notes the failure of spectral masking of coding errors by wanted signals when the error is highly cross-correlated with the signal. This can reduce effective masking thresholds by 30 dB. The existence of such cross-correlation is proved for all Shannon efficient audio data compression systems. At low bit rates, these can exhibit up to 4 dB gain modulation. Stereo directional masking effects can also reduce masking thresholds. An improved cross-spectral class of models for masking, taking account of these effects, is discussed.

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