Sine wave output, low distortion and high stability, frequency range over with whole audio range.
正弦波输出,失真小,稳定性好,频率范围覆盖整个音频范围。
2
Because the ultrasonic wave has the directivity, the audible audiofrequency 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。
3
The paper is mainly deals with the structure and function of DSP chip, function of ADSP-2101 performed in control system of Audio-frequency spectral, received wave form of full wave …