Adventures In Audio with Audio Masterclass
Recording SoftWare for Blind people. Can anybody Please help?

Mic and line input


A microphone delivers a signal of 1 mV up to around 1 V (in extreme conditions).

The microphone preamplifier is specially designed to amplify this as necessary
up to around 1 V on peaks and deliver a low noise signal to the following circuitry.

The amount of gain is set using the Gain control.

The microphone input will supply 48 V phantom power to the microphone.

The line input accepts signals of around 100 mV to 1 V and provides amplification
as necessary.

On some consoles, there is no gain control on the line input.

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The phase button inverts the signal.

The filter cuts low frequencies below around 100 Hz.

The pad button attenuates the signal, usually by 20 dB.

David Mellor



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David Mellor