| 摘要 |
PROBLEM TO BE SOLVED: To adjust an output level in consideration of the input/output characteristic of each speaker in an audio system realizing sound with presence by the use of plural speakers. SOLUTION: In a level adjusting device adjusting the output level of each speaker by outputting a test tone from the plural speakers, the output waveform of the test tone is provided with an inclined part (a) where the output level varies at the either time of starting or finishing the output of the test tone or at both times of starting and finishing the output of the test tone, and with a fixed part (b) where the output level is fixed. |
