[LAD] Cli sound file player requirements

Filipe Coelho falktx at falktx.com
Mon May 10 01:31:18 CEST 2021

On 10/05/21 00:20, John Murphy wrote:
> On Sun, 9 May 2021 19:07:37 +0100 Filipe Coelho wrote:
>> On 09/05/21 14:55, John Murphy wrote:
>>> I need a command line sound file player which I can somehow control,
>>> while playing, to go immediately to a new position in the same file
>>> and keep playing without missing a beat. And a way to pause/continue.
>> If you have JACK running and carla installed (or any host that supports
>> lv2) you can use its audiofile plugin.
>> Simply run:
>> $ /usr/lib/carla/carla-bridge-native internal "~/Music/nyan.wav" audiofile
>> Edit the filename of the music file as needed. You can also use the
>> midifile plugin to load MIDI files.
>> Play on/off and seek is controlled with jack transport, so you can use
>> jack_transport CLI tool.
> That looks easy to try and it runs OK without much complaint:
> $ /usr/lib/carla/carla-bridge-native internal "~/Wed-tune.wav" audiofile
> libjack.so.0 loaded successfully!
> Previous plugin state in '/home/john/Audio File.carxs' is non-existent,
> will start from default state
> But no sound. It shows up as a Readable Client with the right name,
> which I connect to playback_1 and _2 (and ebumeter), but nothing
> (with Jack transport running).

I ran this before writing to the mailing list, so for sure it works here.

Might be you have v2.2 or even older version of Carla, passing the 
filename like that requires v2.3

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