anechoic room

基本解釋

Noise is measured in anechoic room.
噪音值是在無音室中的測量值。
The method is easy to be implemented and the results of acoustic experiments in anechoic room show that offered method is effective.
首次在同時(shí)估計(jì)多信號(hào)源方向和頻率估計(jì)中應(yīng)用誤差補(bǔ)償技術(shù)。文中方法簡便易行，消聲室聲學(xué)實(shí)驗(yàn)證明了該方法是成功的。
Based on "two-microphone" method, a sound intensity measurement was carried out towards a vehicle four-stroke gasoline engine in a semi-anechoic room.
運(yùn)用聲強(qiáng)測試技術(shù)的雙傳聲器法原理，對一臺(tái)車用汽油發(fā)動(dòng)機(jī)在半消聲室內(nèi)進(jìn)行了聲強(qiáng)測量。

消聲室
Secondly three vacuum cleaners based on different value are selected as testing products and the noise samples are collected in the semi-anechoic room.
其次,以3種不同價(jià)位的吸塵器為研究對象,在半消聲室環(huán)境采集噪聲樣本。
消聲實(shí)驗(yàn)室