Quick Start Guide

Last Update: 1/4/21

Applications Manual for Sound Recording with iOS

Our Meter check and Level testing (see Section 7) reveal the following:

The meter scale calibration is a tapered log scale, which is very useful for monitoring the recording level. The two red

segments indicate a 3dB range, which borders on the maximum level before distortion. The yellow segments show the

signal level between -12 and -3 where the normal level peaks should register. The green segments show the levels below

-12dB where the average signal levels should lie.

-24 -18 -12 -6 -3 0dB

This App’s audio processing is very linear with no signal compression. The table shows the playback output signal tracks

the input exactly and conforms to the level displayed by the meters when making the recording.

The Audio Gain control is calibrated from 0% to 100%. We measured the actual gain/attenuation in dB with a reference

of 0dB at the center or 50%. As you can see there is a wide range of adjustment. We recommend you stay within plus or

minus 12dB to avoid distortion.

Motiv Mic Gain

Scale 0% 20% 40% 50% 60% 80% 100%

Gain dB -30 -20 -10 0 +10 +20 +30