| 摘要 |
PURPOSE:To perform the analysis of a sound source approximate to an actual sound source by analyzing the sound field in a room by a geometrical sound ray method. CONSTITUTION:A measuring part 1 measures the directivity of the horn of a speaker as a sound source and transfers the data thereof to an input part 2. The part 2 inputs the shape of a hall, sound absorption coefft., the position, direction and directivity of the speaker (measuring data of the part 1), etc. to a calculation part 3. The part 3 performs calculation by a geometrical sound ray method in accordance with said data, determines echo time patterns, reverberation time, etc. and writes the result thereof into a disc 5. The part 4 displays the results thereof. Thus, the sound source analysis approximate to the actual sound source is accomplished. |
