Monitor multiple tracks at once

ThaCrow · Post by **ThaCrow** » Sat Aug 27, 2016 4:07 am

I am running Ubuntu 16.04 using a Scarlett 18i8 USB interface.

I can record with 3 mics and playback all with no issue however I can only monitor 1 mic. Is there a way to monitor 3?

Post by **steve** » Sat Aug 27, 2016 9:05 am

Audacity can only monitor up to two separate channels at a time.
As you are on Linux, if you use Jack Audio System you could add meters to any number of channels using "Meterbridge" and QJackCtl.

Here's a screenshot showing this type of setup with 4 channel recording and independent metering of each input channel.

: 4-channel-recording.png (154.29 KiB) Viewed 583 times

ThaCrow · Post by **ThaCrow** » Mon Aug 29, 2016 5:13 am

You wouldn't happen to want to post the terminal commands on how to do this would you?

Post by **steve** » Mon Sep 05, 2016 9:28 am

To get four meters as in my previous post you would use something like:

Code: Select all

meterbridge -t vu alsa_pcm:capture_1 alsa_pcm:capture_2 alsa_pcm:capture_3 alsa_pcm:capture_4

There's not much documentation for meterbridge, but the website is here: http://plugin.org.uk/meterbridge/

I used QjackCtl to connect the meters, and to connect Audacity use the device toolbar.
Tip: When launching the applications, launch Audacity last, otherwise you will need to "rescan audio devices" (http://manual.audacityteam.org/man/tran ... tml#rescan)

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Monitor multiple tracks at once

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