Rejected frame concealment

Details Rejected frame concealment Rejected frame concealment

1994-06-10

1996-11-05

MacDonald, Allen R.

Excavating

395 242, 395 255, 371 30, 371 65, G10L 918, G10L 300

Patent

active

055726224

ABSTRACT:
A method and apparatus for improving the decoding of audio signals is disclosed. In a receiver of a frame based radio communication system, rejected frames are concealed according to a first algorithm if the last accepted frame was a speech frame and according to a second algorithm if the last accepted frame was a frame containing background sounds.

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T. B. Minde et al., "Techniques for Low Bit Rate Speech Coding Using Long Analysis Frames", ICASSP, Minneapolis, USA, 1993.
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"Voice Activity Detection", Recommendation GSM 06.32, ETSI/GSM, 1991.
Georg Plenge, Christfried Weck, and Detlef Wiese, "Combined Channel Coding and Concealment", IEE Colloquium No. 042, pp. 3/3 and 3/6. 1993.
Brian Bryden, Gerald E. Seguin, Jean Conan, Vijay K. Bhargava, and Andre Brind'Amour, "Error Correction/Masking for Digital Voice Transmission Over the Land Mobile Satellite System", IEEE Transactions on Communication, vol. 37, No. 3, p. 312. Mar. 1989.

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