Journal Forum

Synthetic Reverberator - January 1960
3 comments

Sound Board: High-Resolution Audio - October 2015
4 comments

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015
2 comments

Access Journal Forum

AES E-Library

Evaluation of Quality for Audio Encoding at Low Bit Rates

Document Thumbnail

Recent progress in high quality digital audio encoding at low bit rates is presented. Encoding at 3 bits/sample gives very high subjective quality, but poor performance when the signal-to-noise ratio is measured. A new parameter for quality evaluation of digital encoding schemes is proposed: The segmental Noise-to-Mask Ratio (NMR) simulates the masking functions in the human ear as known from psychoacoustics. Results are presented for several encoding algorithms.Recent progress in high quality digital audio encoding at low bit rates is presented. Encoding at 3 bits/sample gives very high subjective quality, but poor performance when the signal-to-noise ratio is measured. A new parameter for quality evaluation of digital encoding schemes is proposed: The segmental Noise-to-Mask Ratio (NMR) simulates the masking functions in the human ear as known from psychoacoustics. Results are presented for several encoding algorithms.

Author:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=4996

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 $33 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