Re: meassuring latency of lv2 plugin

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I haven't used the plug-in analysis feature much but it will probably be
useful to record an audio sample in ardour then insert your plugin in that
track. Then add a midi track to record the midi out from your plugin. After
bouncing that midi to a track you will be able to zoom in with the timeline
and compare the audio waveform to the generated midi.

_spencer



On Fri, May 29, 2026, 5:42=E2=80=AFAM <gm-linuxaudio.privatize920@passmail.=
net>
wrote:

> Also good
> On Fri, 2026-05-29 at 13:10 +0200, Fons Adriaensen - fons at
> linuxaudio.org wrote:
> > On Fri, May 29, 2026 at 01:04:05PM +0200, Fons Adriaensen wrote:
> >
> > > [1] E.g. by just outputting a single '1' sample for each
> > > received 'note on', zero otherwise.
> >
> > Or if you are the author of the plugin, just add an audio
> > output doing this (at the same sample offset as the midi
> > message).
> >
> > Ciao,
>

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<div dir=3D"auto">I haven&#39;t used the plug-in analysis feature much but =
it will probably be useful to record an audio sample in ardour then insert =
your plugin in that track. Then add a midi track to record the midi out fro=
m your plugin. After bouncing that midi to a track you will be able to zoom=
 in with the timeline and compare the audio waveform to the generated midi.=
<div dir=3D"auto"><br></div><div dir=3D"auto">_spencer<br><div dir=3D"auto"=
><br></div><div dir=3D"auto"><br></div></div></div><br><div class=3D"gmail_=
quote gmail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, =
May 29, 2026, 5:42=E2=80=AFAM  &lt;<a href=3D"mailto:gm-linuxaudio.privatiz=
[email protected]">gm-linuxaudio.privatize920-OGrP24aSwZHk1uMJSBkQmQ@public.gmane.org</a>&gt; wrote:<b=
r></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border=
-left:1px #ccc solid;padding-left:1ex">Also good<br>
On Fri, 2026-05-29 at 13:10 +0200, Fons Adriaensen - fons at<br>
<a href=3D"http://linuxaudio.org" rel=3D"noreferrer noreferrer" target=3D"_=
blank">linuxaudio.org</a> wrote:<br>
&gt; On Fri, May 29, 2026 at 01:04:05PM +0200, Fons Adriaensen wrote:<br>
&gt; =C2=A0<br>
&gt; &gt; [1] E.g. by just outputting a single &#39;1&#39; sample for each =
<br>
&gt; &gt; received &#39;note on&#39;, zero otherwise.<br>
&gt; <br>
&gt; Or if you are the author of the plugin, just add an audio<br>
&gt; output doing this (at the same sample offset as the midi<br>
&gt; message). <br>
&gt; <br>
&gt; Ciao,<br>
</blockquote></div>

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