Community

AES Convention Papers Forum

The Effect of Room Acoustics on MP3 Audio Quality Evaluation

Document Thumbnail

The impact of using loudspeaker versus headphone playback on the subjective quality of compressed audio is investigated. It is shown that reverberation and to a lesser extent cross-talk, which both are introduced naturally in loudspeaker playback, can effectively hide coding artifacts. In double blind listening tests subjects had to rate MP3 coded excerpts at various bit-rates. The excerpts were played back over headphones. Reverberation and cross-talk were introduced artificially to simulate loudspeaker playback, so that their impact could be assessed separately. Results show that quality scores of the reverberated excerpts were significantly higher than for the corresponding 'dry' excerpts for 64 kb/s bit-rate while these differences diminished with increasing bit-rate. This indicates that coding artifacts can become less audible in reverberant listening conditions.

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

Click to purchase paper as a non-member or you can login as an AES member to see more options.

No AES members have commented on this paper yet.

Subscribe to this discussion

RSS Feed To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.

AES - Audio Engineering Society