阿邓 在 2004-3-12 8:08:16 发表的内容
madog哥建议用的吸音器，海阳哥用纸箱钻洞里面放吸音绵都是处理低频驻波的好办法，而且是“立竿见影”的。
只需要知道是那个频段有峰。 |
It is best to use a spectrum analyser but if you have a test CD with a
sweep frequencies from 20Hz to 20,000Hz, then play it with moderate
volume.
It usually start with 20Hz, you listen carefully which low frequency has the
highest sound pressure, then that is the standing wave.
In practice, there are few frequencies of standing, some are foundamental
frequency, others are harmonic. You should note that down on piece of
paper for reference thee to built the bass absorbers which the most effective locations are putting them in the corner of a room.
