Line Level to Microphone Level

When connecting an iPhone or iPad to an audio mixer.

First, the voltage levels do not match.

Voltage Levels

Level TypedBVolts
Line Level (0VU)+4dBu1.228 volts RMS
Line Level Consumer-10dBV0.316 volts RMS
Instrument Level-20 dBu
Microphone Level-60dBV to -40 dBV0.001 to 0.01V volts RMS
  • 0dB is 1V RMS
  • 0dBV is 0.775V RMS

Attenuation Links

Passive Attenuators
https://www.electronics-tutorials.ws/attenuators/attenuator.html

Stereo line level to mono microphone level
https://electronics.stackexchange.com/questions/87787/stereo-line-level-to-mono-microphone-level

Line level signal to microphone input adapter
https://www.epanorama.net/circuits/line_to_mic.html

All About Pads
http://www.uneeda-audio.com/pads/

Using iPad/iPhone headphone jack for audio input

\https://gmondada.wordpress.com/2017/03/28/using-ipadiphone-headphone-jack-for-audio-input/

Scroll to Top