摘要
在实验基础上创造性地开发了一种从耳机口到麦克风口的音频连接装置,以"直接线路传输"实现音频信号从音源设备到识别设备的无损传输。该方案从音源耳机口提取音频信号经衰减和阻抗匹配后输入到识别端手机的麦克风端口供手机"听歌识曲"app软件识别。与现经喇叭外放的"电-声-拾音-电"方案比较,该方案是"电-电"直接线路传输,不需外放喇叭,避免环境噪音干扰,解决了喇叭外放"听歌识曲"识别不准的问题。该装置线路简洁、实用性强、操作方便、适用范围广,可用于各类音频设备的耳机口和麦克风间无损音频传输和转录,也可用于网络音乐公司生产硬件配合软件销售。
On the basis of experiments,an audio connection device with sound signal attenuation and impedance matching between the headphone port and the microphone port is developed for music recognition App.It implements lossless transmission of audio signal from sound source device to recognition device by"direct line connection".Compared with the current"signal-sound-adapterization-signal"transmission,this"signal-signal"transmission has simple circuit,easy operation and wide application range for lossless audio transmission and transcription between various audio device through headphone and microphone ports.It also can be used for internet music companies to produce hardware cooperated with software sales.
作者
黄韶煊
Huang Shaoxuan(Guangzhou Guangdong,510000)
出处
《电子测试》
2019年第2期82-84,共3页
Electronic Test
关键词
耳机口
音频
手机
听歌识曲
headphone port
audio
mobile phone
music recognition
