| 摘要 |
Disclosed is a multiband compressor for applying dynamic compression to each of a plurality of bands of an audio signal that has been divided into frequency bands, then applying additive synthesis and outputting thereof; wherein power that is input to or output from each of the plurality of the bands is measured, and frequency bands are set on the basis of differences in power between each of the neighboring bands. Alternatively, power that is input to each of the plurality of bands is measured, a predetermined relative threshold is added to values for which a measured voltage has been smoothed, and a threshold to be given for dynamic compression processing for each of the plurality of bands is set. As a result, a multi-band compressor is provided for which an appropriate volume increase effect can be obtained regardless of what kind of signal is input. |
