8th European Conference on Speech Communication and Technology

Geneva, Switzerland
September 1-4, 2003


Speech Recognition Over Bluetooth Wireless Channels

Ziad Al Bawab, Ivo Locher, Jianxia Xue, Abeer Alwan

University of California at Los Angeles, USA

This paper studies the effect of Bluetooth wireless channels on distributed speech recognition. An approach for implementing speech recognition over Bluetooth is described. We simulate a Bluetooth environment and then incorporate its performance, in the form of packet loss ratio, into the speech recognition system. We show how intelligent framing of speech feature vectors, extracted by a fixed-point arithmetic front-end, together with an interpolation technique for lost vectors, can lead to a 50.48% relative improvement in recognition accuracy. This is achieved at a distance of 10 meters, around the maximum operating distance between a Bluetooth transmitter and a Bluetooth receiver.

Full Paper

Bibliographic reference.  Bawab, Ziad Al / Locher, Ivo / Xue, Jianxia / Alwan, Abeer (2003): "Speech recognition over bluetooth wireless channels", In EUROSPEECH-2003, 1233-1236.