Methods All subjects were tested"PASS"through distortion-product otoacoustic emission (DPOAE), then the behavior acoustictest was made.
方法采用行为测听和耳声发射相结合的方法测听。
2
After a white noise signal has been taken as the input of a standard sound source, a static acoustictest is conducted for a prototype silencer without air flow and at the normal temperature.
采用白噪声信号作为标准声源的输入信号,在常温无气流条件下对消声器实物模型进行了静态放声试验。
3
Test results indicate that the developed fiber optic acoustic sensors are capable of detecting the acoustic signals propagating in transformer oil with high sensitivity and wide bandwidth.