The input source is set to the microphone (mic).

输入源被设置为麦克风(mic)。

youdao

MIC input not clipped when loud voice in VoIP call.

当在使用IP电话中大声通话时麦克风音频输入不会中断。

youdao

You can record streaming audio, Mic input, or Line-in input from external devices connected to your PC.

您可以记录流式音频，麦克风输入，或输入从连接到电脑外部设备的输入。

youdao

Additionally, videographers have the ability to capture audio with the onboard microphone or record stereo audio externally using the mic input.

ENGADGET: Nikon unveils lightweight, full-frame D600 DSLR -- hands-on and low-light samples (video)

With its special DJ Effects and DJ Lighting features, as well as its ability to support mic input, an evening of entertainment will never be the same again.

ENGADGET: Samsung, Flo Rida introduce massive Giga Sound MX-FS9000 speakers (update: hands-on video)

The back of the S4 is pretty much what you'd expect: a couple of spare sets of RCA stereo inputs, a mic input, TRS and RCA outputs, a MIDI passthrough, and a footswitch jack if you're into that sort of thing.

ENGADGET: Native Instruments Traktor Kontrol S4 review Alt