AES Store

Journal Forum

Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
10 comments

Reflecting on Reflections - June 2014
1 comment

Quiet Thoughts on a Deafening Problem - May 2014
1 comment

Access Journal Forum

AES E-Library

Can Objective Methods Replace Subjective Assessments?

Currently the only reliable method for evaluating the audio quality of low bit-rate audio codecs is by subjective assessments. This is a costly and very time-consuming procedure. Furthermore, existing coding standards are very flexible and allow for large differences in implementation without violating these standards. Thus, evaluations of individual implementations are necessary, but cost and efforts may hamper this. It is desirable that subjective assessments can be replaced, or at least complemented, by an objective measurement method. A number of proposals for objective perceptual models have been described in literature. At present, these methods are not sufficiently validated. In 1994, ITU-R established Task Group 10-4 to recommend a method for objective perceptual measurements of audio equipment. A draft recommendation is expected by the end of 1996. This paper reports on the work in ITU-R Task Group 10-4 and the requirements as outlined by the group. Experiences gained by the Swedish Broadcasting Corporation when using one of the proposed models, PAQM from PTT Netherlands, are also discussed.

Author:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:

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