极化声响器 Polarized Sounder

传声器频率响应 [电子] frequency response of microphone

声响探测器 aural detector ; acoustic probe

声响应答器 acoustictransponder set ; acoustic transponder ; acoustic transponder set

音响发声器 sounder

立体声混响效果器 eaReckon EAReverb VST ; EH XO Cathedral ; EH Cathedral

声响信号器 sound signalling device ; acoustic signalling system

声响指示器 audible indicator ; HA ; squealer

声响报警器 acoustic alarm