音频输入模块示例-输入

#! /usr/bin/python3.7

import hilens
import wave

def run():
    # 构造本地音频文件采集器并将解码后数据保存到wav文件
    cap = hilens.AudioCapture("\tmp\test.aac")
    # 构造本地麦克风采集器
    cap2 = hilens.AudioCapture(sample_rate=hilens.AUDIO_SAMPLE_RATE_16000, bit_width=hilens.AUDIO_BIT_WIDTH_16, nSamples=1000, sound_mode=hilens.AUDIO_SOUND_MODE_MONO) 
    wav = wave.open("test.wav", "wb")
    wav.setnchannels(2) # 设置通道数为2
    wav.setsampwidth(2) # 设置采样率为16Bit
    wav.setframerate(44100) #设置采样率
    for i in range(100): # 读取500帧数据并写到文件（约12S）
        data = cap.read(5)
        wav.writeframes(data.tobytes())
    wav.close() # 当前目录生成test.wav音频文件，可用常见播放器打开

if __name__ == '__main__':
    hilens.init("hello") 
    run()
    hilens.terminate()