Sample Rate Mismatch

Installation & Configuration Linux
#1

Hi. I’m getting an error message now when I try to load any project. A pop-up box says:

Sample Rate Mismatch

This session was created with a sample rate of 88200 Hz, but Ardour is currently running at 48000 Hz. If you load this session the audio will be resampled, which reduces quality.

Do not load session/Load session anyway

and then I get the second pop-up

Session “/home/tibius/Ardour/The Coast (Working) (snapshot The Coast (Louder?))” did not load successfully:
Cannot initialize session/engine: Audio/MIDI Engine is not running or sample-rate mismatches.

—ERROR: Session: Load aborted due to sample-rate mismatch

I am choosing “Do not load session.” I would like these files to load again the way they did before. What should I do?

#2

Instead of “Do not load session.” use “Reconfigure Engine” and change it to 88.2kHz.

…unless you use JACK or pipewire, in which case you’ll have to set those to run at 88.1kHz.

#3

I don’t see a “Reconfigure Engine.” Just the two options “Do not load session/Load session anyway”

Anyway, I tried tinkering and I opened up a fresh file, set it to use ALSA at the correct rate, and now the file opens up and I see all my tracks/plugins etc., but It makes no sound…

#4

Do the meters in the mixer window move? If so, check if master-bus output is connected:

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–

I hazard a guess that you previously used Ardour with JACK/pipewire; and now with a different backend the previous connections no longer apply.

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#5

That fixed it! how did that Master out playback get turned off? I never ever opened that before. Weird.

#6

When you create the session, Ardour auto-connects to the first outputs of the currently used hardware device [1].

When you later pick a different audio system or device, that connection no longer applies, and you have to manually re-connect hardware in/out.

–
[1] Ardour Preferences > Signal Flow > … allows to disable this.

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