| 摘要 |
PROBLEM TO BE SOLVED: To prevent voice from being interrupted. SOLUTION: When an extension device is configured comprising a CPU 152 for extension-processing of compressed data, the extension device is provided with a measuring means 203 for measuring a load of the CPU, and a decoding means 204 for extending the compressed data but being able to partly omit the contents of the extension processing thereafter according to a measurement result by the above measuring means during the extension processing period, and the contents of the processing by the above decoding means is partly omitted based on the measurement result by the above measuring means, and thus, the load of the above CPU is reduced, thereby prevents the voice from being interrupted.
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