Re: Do we want LV2 and jack-midi?

Hi All,

Pipewire claims to be a replacement for both jack and pulseaudio and

provides drop-in replacements for programs that expect either to be

present. It also claims to be low-latency. My distro (Fedora) moved to

Pipewire a few updates ago and I hardly noticed. I usually route fluidsynth

through alsa so I haven't tried rg via Pipewire but I'll give the pulseaudio

drop-in a tryout. If, as it claims, pw is to be the standard Linux 
sound/media

server (it does video too), then I guess rg should have a good look at it...

I have no view on LV2.

Regards,

Chuck Elliot.


On 6/6/22 2:45 PM, Lorenzo Sutton wrote:
> Hi all,
>
> As a new release approaches, I think one of the latest threads about 
> synths, jack (midi) etc. re-prompts the longstanding questions:
>
> 1. do we want LV2 in Rosegarden?
> 2. do we want Jack-MIDI?
>
> IMHO (and with an updated perspective compared to my opinions in the 
> past):
>
> 1. I think on the one hand this would be great because LV2 is the 
> current de-facto standard on Linux and would open up many 
> possibilities if integrated natively.
> The key question, though, is: would it make sense to support LV2 if 
> then user's aren't able to 'generate' (i.e. save as, say, a WAV file), 
> the final result of their musical masterpiece made in Rosegarden?
> I'm thinking of software like Ardour, Qtractor and LMMS (the latter 
> notably also not supporting LV2 yet), which are potentially 
> self-contained in that you add/use plugins, and when done export to a 
> final audio file.
> If Rosegarden were to support LV2 it should also support audio export 
> of the final result, otherwise it would mostly generate user frustration.
> Self-contained in audio is a double-edged sword which easy becomes 
> obsolete when relying on plugins which will eventually be 
> un-maintained or become incompatible (this applies also outside the 
> Linux ecosystem - think RTAS or DirectX).
>
> 2. jack-midi feels like a higher priority. Why? Because it would allow 
> to e.g. connect to jack-midi applications like Carla (multi-format 
> plugin host) or Ardour (to name a couple) and better support 
> modularity within the current Linux ecosystem where it seems that ALSA 
> Midi is considered to be deprecated. True there is a2j but that's 
> really a bit of a work-around.
>
> My two (user-oriented) cents and would be interesting to hear other 
> opinions.
>
>
> Lorenzo.
>
>
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