This paper presents the results of measurements of speech intelligibility in the digital telecommunication channels with delta modulation coding. Our research included comparative subjective measurements carried out with a traditional intelligibility test and objective measurements utilizing automatic speech recognition procedures. The experiments were performed for various codecs and channel capacities and with white additive noise introduced in the digital channel between the coder and decoder. The results indicated that for a reliable evaluation of speech transmission quality, the type of codec, its mode of operation and transmission conditions should be known.
Authors:
Basciuk, Kazimierz; Brachmanski, Stefan; Olaczek, Andrzej
Affiliation:
Wroclaw University of Technology,Poland
AES Convention:
106 (May 1999)
Paper Number:
4954
Publication Date:
May 1, 1999
Subject:
Signal Processing
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.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
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.