声频的 meaning in Chinese

audifier audio

Professional digital audio applications employing pulse - code modulation - preferred sampling frequencies
采取脉冲代码调制的专业数字声频的应用.优选取样频率
Telecommunications - digital processing of program audio signals - algorithm for 15 - khz audio at 384 kbit s using 14 11 bit coding
电信.声频信号程序的数字处理.使用14 11位编码以384k位秒速率传输15k赫兹声频的算法