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SETTING UP AUDIO LOOPBACK IN LINUX DEBIAN HOW TO

use the Tools/Advanced Tools/Audio Calibration signal in MC.

if using an external signal, you now need to play the signal by either.

Choose "REW speaker cal signal" (if MC is configured with an audio input) or "Use an external signal" (if MC has no audio input) then click OK.

Configure MC and REW for loopback as per one of the choices below and with no DSP applied in MC.

To do this we need a working loopback method (as per below) then do the following:

It will generally be useful to calibrate this against some known level.įor example, lets say we want -20dBFS pink noise to measure 83dB in REW. REW measures against an absolute SPL rather than a relative level. Install REW from (note that the beta version is the generally recommended version to use) Windows users can choose between two input methods:ĪSIO is typically preferred if the hardware supports it, this usually means you are using a pro audio interface.Įxamples will be given using both methods. Linux and MacOS users will need JRiver to play the test signal using REW's external sweep feature as described in the the ALSA loopback method ASIO vs WDM The ability to route external audio input through JRiver is only implemented on Windows.

SETTING UP AUDIO LOOPBACK IN LINUX DEBIAN HOW TO

This page describes how to do this using freely available tools. The ability to measure the output from Media Center is therefore an extremely useful thing to be able to do.

2.4.3 Configure REW to record from the loopback deviceĭSP Studio has a lot of options which interact with each other and it can be easy to make small mistakes that negatively impact sound quality.

2.4.2 Configure MC to output to the loopback device.

2.1.2 Calibrating the Measurement Level.