I don't know how to do that anymore, if I ever did. I've used Jack for
years. In general it works for me but it is a bit finicky.

   As I say, software plugins in a real-time data path aren't something I
ever do anymore. If I really think I need a compressor when recording it's
going to be hardware which has its limitations as per that specific
hardware device. However careful recording with good levels shouldn't ever
be a noise floor issue so I just record softer and boost as necessary. I
use Mixbus, the for-pay version of Ardour. I have general workflow
templates that make getting set up easy, and frankly I'm recording so
seldomly anymore that I'm not even current with much of Linux audio
anymore. The alsa-users list used to be a very lively list. Today it's
terribly quiet. Probably everyone who could help you is either off in a
forum somewhere or winding down like me in retirement.

   Not sure any of this helps but as I say this list is so quiet I wasn't
sure you'd get any answers.

Good luck,

On Fri, Jul 9, 2021 at 11:03 AM Kevin P <> wrote:

> Thank you for your kind reply, Mark.
> The suggestions you gave me are surely helpful, and I will study in
> deep some of the things you mentioned.
> I agree with you that applying a compressor as part of post-production
> would be the most efficient way of having the audio recorded the way I
> want.
> I am looking at jack too, i'll eventually install pipewire-jack as I
> am already running on pipewire, I'll look up for jack-compatible
> plugins.
> I'd still like to try implementing this with plain ALSA though, just
> to learn and experiment with it.
> Let me know if you know how to do it this way too!
> Il giorno ven 9 lug 2021 alle ore 00:17 Mark Knecht
> <> ha scritto:
> >
> >
> >
> >
> > On Thu, Jul 8, 2021, 6:27 AM Kevin P <> wrote:
> > >
> > > Hello everyone,
> > > I own a Scarlett Solo 3rd gen USB audio board, and I would like to use
> > > a compressor
> > > plugin from the package "alsa-plugins", Arch Linux. The goal is to
> > > apply this effect
> > > to my voice when I'm recording, always.
> > <SNIP>
> > >
> > > I'm not quite sure this is correct, though. The compressor plugin I'd
> > > like to use is
> > > named "dysonCompress", it should be shipped with alsa-plugins package.
> > > I could not
> > > find documentation I could understand about this.
> > > Any help would be greatly appreciated :)
> > >
> >
> > In time critical applications like recording vocals you may find the
> latency through software plugins to simply be unacceptable as it can really
> throw off your sense of timing. Most important when recording is to not
> have the technology get in the way of the performance.
> >
> > Should you really want to try it live then I would go with Jack and
> simply route the scarlett's output, once inside the machine, through
> whatever compressor you want to try and push the Alsa buffer size down as
> far as you can without creating xruns.
> >
> > In my experience though, especially when beginning, I think you're
> better off recording the vocal raw and then applying the compressor after
> the fact in DAW.
> >
> > A lot of this depends on your monitoring chain. I Generally find that an
> uncompressed vocal sent through a cheap hardware reverb in the monitor
> chain is a great way to approach the problem of getting a good dry vocal on
> disk. Once the vocal is on disk you can compress it anyway you want. At
> that point it's just numbers.
> >
> > HTH,
> > Mark
> >
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