Input Overload; Tone Generator; Matching Audio Levels With Offset - Shure AD3 User Manual

Input Overload

The Tx Overload message appears when the audio input experiences a high­level signal. The audio LED turns red as an addi­
tional indicator of an overload. Reduce the input signal or enable the input pad to remove the overload condition.
Tip: To enable the input pad, navigate to Audio > Pad and select ­12 dB.

Tone Generator

The transmitter contains an internal tone generator that produces a continuous audio signal. The tone is helpful when conduct­
ing a sound check or for troubleshooting the audio signal chain. The level of the tone is adjustable from -60 dB to 0 dB and the
frequency can be set to 400 Hz or 1000 Hz.
Tip: Always start with the level set to -60 dB to avoid overloading speakers or headphones.
1. From the Audio menu select Tone Gen.
2. Set the frequency to 400 Hz or 1000 Hz.
3. Select Level and use the arrow buttons adjust the value between -60 dB and 0 dB.
Turn off the tone by selecting Off from the menu or by cycling the transmitter power.

Matching Audio Levels with Offset

When linking two or more transmitters to a receiver, there may be a difference in volume levels between microphones or instru­
ments. If this occurs, use the Offset function to match the audio levels and eliminate audible volume differences between trans­
mitters. If using a single transmitter, set Offset to 0 dB.
1. Turn on the first transmitter and perform a sound check to test the audio level. Turn off the transmitter when finished.
2. Turn on the second transmitter and perform a sound check to test the audio level. Repeat for any additional transmit­
ters.
3. If there is an audible difference in the sound level between the transmitters, navigate to the Offset menu (Audio >
Offset) in the transmitter to increase or decrease the Offset in realtime to match the audio levels.
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