Meaning of Error message

Installation & Configuration Linux
#1

Good afternoon
Please can you tell me what this error message means:

2023-06-06T16:06:44 [INFO]: AlsaAudioBackend: adjusted output channel count to match device.
2023-06-06T16:06:44 [INFO]: AlsaAudioBackend: adjusted input channel count to match device.
2023-06-06T16:06:44 [INFO]: Scanning folders for bundled LV2s: /opt/Ardour-7.4.0/lib/LV2
2023-06-06T16:06:48 [INFO]: harvid version: 901
2023-06-06T16:06:49 [INFO]: Loading menus from /opt/Ardour-7.4.0/etc/ardour.menus
2023-06-06T16:06:50 [INFO]: Loading user ui scripts file /home/mel/.config/ardour7/ui_scripts
2023-06-06T16:06:50 [INFO]: Loading plugin order file /home/mel/.config/ardour7/plugin_metadata/plugin_order
2023-06-06T16:06:50 [INFO]: Loading history from /home/mel/Music/Audio/searching/searching.history
2023-06-06T16:07:17 [ERROR]: AudioClock::sample_duration_from_bbt_string() called with BBT mode but without session!
2023-06-06T16:07:17 [ERROR]: AudioClock::sample_duration_from_bbt_string() called with BBT mode but without session!
2023-06-06T16:07:17 [INFO]: Loading user ui scripts file /home/mel/.config/ardour7/ui_scripts
2023-06-06T16:07:17 [INFO]: Loading plugin order file /home/mel/.config/ardour7/plugin_metadata/plugin_order
2023-06-06T16:07:17 [INFO]: Loading history from /home/mel/Music/Audio/didBefore/didBefore.history
2023-06-06T16:07:17 [INFO]: didBefore: no history file “/home/mel/Music/Audio/didBefore/didBefore.history” for this session.
2023-06-06T16:07:46 [ERROR]: AudioClock::sample_duration_from_bbt_string() called with BBT mode but without session!
2023-06-06T16:07:46 [ERROR]: AudioClock::sample_duration_from_bbt_string() called with BBT mode but without session!
2023-06-06T16:07:46 [INFO]: Loading user ui scripts file /home/mel/.config/ardour7/ui_scripts
2023-06-06T16:07:46 [INFO]: Loading plugin order file /home/mel/.config/ardour7/plugin_metadata/plugin_order
2023-06-06T16:07:50 [INFO]: Loading history from /home/mel/Music/Audio/dontWannabe/dontWannabe.history
2023-06-06T16:22:10 [ERROR]: AudioClock::sample_duration_from_bbt_string() called with BBT mode but without session!
2023-06-06T16:22:10 [ERROR]: AudioClock::sample_duration_from_bbt_string() called with BBT mode but without session!
2023-06-06T16:22:10 [INFO]: Loaded custom session defaults.
2023-06-06T16:22:10 [INFO]: Loading user ui scripts file /home/mel/.config/ardour7/ui_scripts
2023-06-06T16:22:10 [INFO]: Loading plugin order file /home/mel/.config/ardour7/plugin_metadata/plugin_order
2023-06-06T16:22:10 [INFO]: Loading history from /home/mel/Music/Audio/VPO/VPO.history
2023-06-06T16:22:10 [INFO]: VPO: no history file “/home/mel/Music/Audio/VPO/VPO.history” for this session.

This is a blank brand new session using the default template.
The system is
Ardour 7.4.0 on AVL21.3
Hardware:
2017 Lenovo thinkstation
Lexicon Alpha audio interface
KingKorg synth as midi controller

Many thanks

#2

You can ignore those. Ardour 7.5 will not produce these messages anymore.

Tech Details:

When one of the clock-displays uses Bar|Beat|Tick, the value can only be calculated when the Tempo is known. There are however various clock-displays that can exist without a valid session. e.g. you can close a session, and the main editor window still persists.

It can also happen during initial session load, when one of the clocks uses music-time and is rendered before the session load completed.

#3

Thanks very much Robin
I’m trying to get my whole system as stable as possible as lately I have had many crashes and It affects my work and motivation.
I’m waiting on a new usb card so the audio interface can be on its own, and trying to find out if my existing audio interfaces (roland ua22 and lexicon alpha) are uac compliant enough or if I have to buy another one.
So being able to understand the messages is important to me.
Thank you again for all your help

#4

That is understandable. If you still have some patience it might be worth to report a bug about the crash https://ardour.org/debugging_ardour

#5

I have a Lexicon Lambda, it works fine. I had an Alpha at one point which I gave to someone else, but from memory I think it worked just as well as the Lambda (although obviously more limited with just one mic amp and no phantom power available).

#6

Thanks Chris
That’s helpful information

#7

Thanks Robin
I have been using Ardour for more than 10 years now and fully intend to get
to the bottom of it all
Do I need to always use a (nightly) debug version to get crash info? Or is
that more likely to crash?

#8

The debug version has debug info included in the binary, which makes it easier for the developers to see where in the actual source code the problem is.

And you should use the nightlies, if possible, to make sure that your bug still exists and hasn’t been fixed in the recent versions.

#9

Thanks Peder
I will download a new nightly today

#10

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