| 摘要 |
PROBLEM TO BE SOLVED: To realize a signal level compensating function which is highly reliable and free of a feeling of auditory disorder by combining known functions together. SOLUTION: A demodulated sound signal level decision system assumes any program which should accurately transmit contents such as news to be in a standard state of sound volume and uses a result of a decision on whether a signal is a speech signal. When the signal is a speech signal, the current sound volume is set to standard sound volume, the amplification factor of a reproducer for the broadcast channel is corrected to obtain expected reproduction sound volume, and the correction quantity is stored, thereby automatically correcting the difference in sound volume between broadcast channels. COPYRIGHT: (C)2006,JPO&NCIPI |
