G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 19/02 (2006.01) G10L 21/02 (2006.01) G10L 9/10 (1995.01)
Patent
CA 2144268
A signal encoding system A1 includes a bark spectrum calcu- lating device 2 for calculating a bark spectrum as a parameter based on an auditory model, a bark spectrum encoding device 3 for encoding the bark spectrum, a sound source calculating device 4 and a sound source encoding device 5. The bark spectrum calculat- ing device 2 includes a power spectrum calculating device 6, a critical band integrating device 7, an equal loudness compensat- ing device 8 and a loudness converting device 9. These devices are formed by engineering the functions and effects which are similar to those of the auditory model. The decoding process perform the conversion in the opposite direction. As a result, the signals can be encoded and decoded through less calculation in a manner well matching the human auditory characteristics. When speech signals are to be encoded, it can be realized through less calculation and memory while suppressing noise components other than the speech signal.
Gowling Lafleur Henderson Llp
Mitsubishi Denki Kabushiki Kaisha
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