| 摘要 |
PURPOSE:To keep the sound volume level of reproducing sound constant without attaching an additional circuit by normalizing the sound volume level of sound data stored in a storage means based on a detection result by a sound volume level detecting means. CONSTITUTION:A recording/reproducing machine 1 makes sound into digital data, and records it on sound memory 4 as the sound data Di. A level detector 2 reads out the sound data Di at every prescribed area via the recording/ reproducing machine 1, and detects the maximum level in the area, and outputs it to a normalization processing machine 3 setting it as the maximum level value Dx, and the normalization processing machine 3 performs the normalization of the sound data Di inputted from the recording/reproducing machine 1 based on a prescribed upper limit level value Ds decided in advance and the maximum level value Dx inputted from the level detector 2. In such a way, it is possible to keep the sound volume level constant when the reproduction of recorded sound data is performed. |
