The headphone impedance plot is a measure of the dynamic resistance in ohms of the headphones over the entire audible frequency range.
耳机阻抗剧情是动态抵抗的措施在耳机的欧姆在整个可听见的频率范围。
L. f. noise can be better attenuated so as to obtain good attenuation characteristics over the entire audible frequency range by using active noise reduction technique in the closed-air type earmuff.
在密闭型耳罩中，利用有源降噪技术可以较好地衰减低频噪声以使整个可听声频率范围内获得良好的衰减特性。
The electromagnetic parameter of power transmission include: power frequency electrical field, power frequency magnetic field, radio inference (ri) and audible noise (an).
输电线路的电磁环境参数主要包括工频电场、工频磁场、无线电干扰和可听噪声四个方面。
By setting the first frequency at a frequency above the frequency limit of human hearing, an undesirable audible transformer humming that might otherwise occur is avoided.
通过将第一频率设定为高于人类听觉的频率极限的频率，可避免出现原本可能出现的令人不悦的可听到的变压器嗡嗡声。
Existing predominantly, in the Very Low frequency part of the radio spectrum that corresponds with the audio frequency range, we can experience this activity as audible sound.
尽管这种活动主要存在于无线电声音频率分区的超低频区域，我们还是能够通过听觉来捕捉到它。
Because the ultrasonic wave has the directivity, the audible audio frequency demodulated from the interior of the ultrasonic wave also has the directivity and forms a directional audible sound.
一声频定向换能器，以定向发射超声波给接听者，其中该超声频段部分经空气自解调而还原为原音频信号。
Because the ultrasonic wave has the directivity, the audible audio frequency demodulated from the interior of the ultrasonic wave also has the directivity and forms a directional audible sound.
一声频定向换能器，以定向发射超声波给接听者，其中该超声频段部分经空气自解调而还原为原音频信号。
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