| 摘要 |
The present invention relates to a received speech signal processing apparatus suitable for use in a mobile communication terminal such as a portable telephone. The received speech signal processing apparatus (5) is arranged to include a frequency band partitioning unit (8) for partitioning a received speech signal into a plurality of frequency bands in the frequency domain and a received speech signal compressing unit (9) for effecting a compression processing on respective speech signal components involved in respective frequency bands at a ratio differing depending on the respective received speech signal which is partitioned into a plurality of frequency bands. Since the compression processing is effected on the received speech signal at the compression ratio suitable for each frequency band, an articulate speech can be reproduced from the received speech signal.
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