1 Topic by Alfonrock (edited by Alfonrock 2023-01-24 17:56:38)

  • Registered: 2011-08-04
  • Posts: 8

Topic: Much higher CPU usage in Ableton using RME Fireface VS Mac Speakers

Hey Guys,
I was hoping someone could help me out with this..

In my live performance set, if I select "Macbook Pro Speakers" as my audio output device, the average CPU meter will fall in the 30% range. However, if I select "Fireface UC Mac" as the audio output device, the average CPU meter will rise into the 40-45% range!

-I only have selected the Ins and Outs that I use.

-I have updated the Fireface driver and flash.

Shouldn't this be the other way round? or at least have a little less CPU usage with the audio interface selected?

Using MacBook Pro (16-inch, 2019)
MacOS Monterey v. 12.2
The interface is connected to my Mac through a USB A to USB C converter.


Thanks for your help!

2 Reply by MC

  • MC
  • MC
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  • From: Germany/Thailand
  • Registered: 2007-04-06
  • Posts: 24,823

Re: Much higher CPU usage in Ableton using RME Fireface VS Mac Speakers

Selecting whatever I/Os does not help - the underlying system will always work with all input and output channels that the interface offers. So the internal soundcard with its 2 or so channels always has an advantage.

Regards
Matthias Carstens
RME

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