Re: [Rosegarden-user] Focusrite Scarlett 2i2 USB audio interface

2015-09-03 Thread Abrolag 
For what it's worth, I've been using a Komplete Audio KA6 for some time with
no problems at all. It is USB2 class compliant and 'just works' (tm)

It has 6 channels in and 6 out, one pair being SPDIF. Also 2 of the inputs are
combined XLR/jack Mic/Instrument ones. All the analog I/O is balanced.

Finally there is a switchable headphone monitor.


-- 
W J G

--
Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
Get real-time metrics from all of your servers, apps and tools
in one place.
SourceForge users - Click here to start your Free Trial of Datadog now!
http://pubads.g.doubleclick.net/gampad/clk?id=241902991=/4140
___
Rosegarden-user mailing list
Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe
https://lists.sourceforge.net/lists/listinfo/rosegarden-user

Re: [Rosegarden-user] Focusrite Scarlett 2i2 USB audio interface

2015-09-03 Thread Holger Marzen 
On Wed, 2 Sep 2015, D. Michael McIntyre wrote:

> I came up with the Focusrite Scarlett 2i2 after spending a few hours 
> researching my options.  It was reported working as far back as 2012, 
> and nothing since then gave me pause.  I like their attitude toward 
> Linux, which seems to be, in a nutshell, "We don't support Linux, but if 
> anybody is writing a driver for Linux, here are some technical details 
> for you."
> 
> http://us.focusrite.com/usb-audio-interfaces/scarlett-2i2
> 
> I haven't done any real work with the interface yet, but my first 
> impressions are really positive.  I plugged it in, and it worked.

It's absolutely reliable. I use it via jackd all the time, even when
listening to music or watching videos. I configured pulseaudio to use
jacks, so everything works. The 2i2 runs for hours and hours without
making trouble (like my old M-Audio Fast Track Pro which started
cyloning).

But the 2i2 doesn't have a mixer. No problem, I hear you say, we have
jack_mixer. Yes, we have, but how do we tell all the jack-clients to
connect to the mixer's input instead of system:playback?

Don't cry in despair, there is a solution: jack.plumbing
If jack.plumbing is active and its ruleset is carefully crafted, then
the magic can happen and jack.plumbing disconnects jack-clients from
system:playback and connects them to jack_mixer.

Take this ~/.jack_mixer

-- snip --







-- snap --

And then take this ~/.jack.plumbing

-- snip --
(connect"alsa-jack\..*jackP\..*:out_000" "jack_mixer:ALSA L")
(connect"alsa-jack\..*jackP\..*:out_001" "jack_mixer:ALSA R")
(disconnect "alsa-jack\..*jackP\..*:out_.*" "system:playback_.*")

(connect"Clementine:out_jackaudiosink-.*_1" "jack_mixer:JACK L")
(connect"Clementine:out_jackaudiosink-.*_2" "jack_mixer:JACK R")
(disconnect "Clementine:out_jackaudiosink-.*" "system:playback_.*")

(connect"Qtractor:Master/out_1" "jack_mixer:JACK L")
(connect"Qtractor:Master/out_2" "jack_mixer:JACK R")
(disconnect "Qtractor:Master/out_.*" "system:playback_.*")

(connect"rosegarden:master out L" "jack_mixer:JACK L")
(connect"rosegarden:master out R" "jack_mixer:JACK R")
(disconnect "rosegarden:master out .*" "system:playback_.*")

(connect"MPlayer.*:out_0" "jack_mixer:ALSA L")
(connect"MPlayer.*:out_1" "jack_mixer:ALSA R")
(disconnect "MPlayer.*:out_.*" "system:playback_.*")

(connect"PortAudio:out_.*[02468]" "jack_mixer:JACK L")
(connect"PortAudio:out_.*[13579]" "jack_mixer:JACK R")
(disconnect "PortAudio:out_.*" "system:playback_.*")

(connect"PulseAudio.*:front-left"  "jack_mixer:PULSE L")
(connect"PulseAudio.*:front-right" "jack_mixer:PULSE R")
(disconnect "PulseAudio.*:front-.*" "system:playback_.*")

(connect "jack_mixer:MAIN L" "system:playback_1")
(connect "jack_mixer:MAIN R" "system:playback_2")
-- snap --

Start jack_mixer, start jack.plumbing and let the magic work :)

The next time uncle Holger will tell you how you can move and resize
windows automagically (even to workspaces) with gdevilspie and devilspie
:)

Regards
Holger

--
Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
Get real-time metrics from all of your servers, apps and tools
in one place.
SourceForge users - Click here to start your Free Trial of Datadog now!
http://pubads.g.doubleclick.net/gampad/clk?id=241902991=/4140
___
Rosegarden-user mailing list
Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe
https://lists.sourceforge.net/lists/listinfo/rosegarden-user

Re: [Rosegarden-user] Focusrite Scarlett 2i2 USB audio interface

2015-09-02 Thread Blaise Alleyne 
On 02/09/15 05:53 PM, D. Michael McIntyre wrote:
> I came up with the Focusrite Scarlett 2i2 after spending a few hours 
> researching my options.  [...]  It appears to be one of a very limited number 
> of 
> available options, and this one is now tested and approved by yours truly.
> 

+1

I also have a Focusrite Scarlett 2i2 and have been quite happy with it.

>From what I understand, it's USB 2.0 class compliant, doesn't require any
proprietary drivers or reverse engineering. I've never had a problem in 
GNU/Linux.


--
Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
Get real-time metrics from all of your servers, apps and tools
in one place.
SourceForge users - Click here to start your Free Trial of Datadog now!
http://pubads.g.doubleclick.net/gampad/clk?id=241902991=/4140
___
Rosegarden-user mailing list
Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe
https://lists.sourceforge.net/lists/listinfo/rosegarden-user

Re: [Rosegarden-user] Focusrite Scarlett 2i2 USB audio interface

2015-09-02 Thread Nathan Stewart 
My 1010LT just died (at least the MIDI part did). Right now I'm largely
recording on my Zoom R24 and importing - I actually kinda prefer the
appliance for tracking guitar/bass/vocals - but I've got my eye on a
multitrack audio interface.I'd been eyeing the Focusrite firewire
interfaces - although now that I'm recording drums via MIDI instead of
audio - in all honestly I can live with a 2ch interface.

On Wed, Sep 2, 2015 at 8:26 PM, Blaise Alleyne  wrote:

> On 02/09/15 05:53 PM, D. Michael McIntyre wrote:
> > I came up with the Focusrite Scarlett 2i2 after spending a few hours
> > researching my options.  [...]  It appears to be one of a very limited
> number of
> > available options, and this one is now tested and approved by yours
> truly.
> >
>
> +1
>
> I also have a Focusrite Scarlett 2i2 and have been quite happy with it.
>
> >From what I understand, it's USB 2.0 class compliant, doesn't require any
> proprietary drivers or reverse engineering. I've never had a problem in
> GNU/Linux.
>
>
>
> --
> Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
> Get real-time metrics from all of your servers, apps and tools
> in one place.
> SourceForge users - Click here to start your Free Trial of Datadog now!
> http://pubads.g.doubleclick.net/gampad/clk?id=241902991=/4140
> ___
> Rosegarden-user mailing list
> Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe
> https://lists.sourceforge.net/lists/listinfo/rosegarden-user
>
--
Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
Get real-time metrics from all of your servers, apps and tools
in one place.
SourceForge users - Click here to start your Free Trial of Datadog now!
http://pubads.g.doubleclick.net/gampad/clk?id=241902991=/4140___
Rosegarden-user mailing list
Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe
https://lists.sourceforge.net/lists/listinfo/rosegarden-user

[Rosegarden-user] Focusrite Scarlett 2i2 USB audio interface

2015-09-02 Thread D. Michael McIntyre 
I forgot to spec a PCI port on my latest motherboard, so I have been 
without my Audiophile 24/96 for months.  I will be composing some music 
for my new software company in the next while, so I finally had to go 
hunt down a solution to this problem.

I came up with the Focusrite Scarlett 2i2 after spending a few hours 
researching my options.  It was reported working as far back as 2012, 
and nothing since then gave me pause.  I like their attitude toward 
Linux, which seems to be, in a nutshell, "We don't support Linux, but if 
anybody is writing a driver for Linux, here are some technical details 
for you."

http://us.focusrite.com/usb-audio-interfaces/scarlett-2i2

I haven't done any real work with the interface yet, but my first 
impressions are really positive.  I plugged it in, and it worked.

Specifically, here's how I rigged it up:

onboard audio -> Behringer Eurorack UB1002 mixer -> 2i2 -> external amp

I left pulseaudio running on the ac97 on my motherboard and configured 
JACK to use "Scarlett 2i2 USB."

I recorded a mixture of some Youtube video (pulseaudio -> ac97 -> 
Behringer mixer -> 2i2) with one of the Rosegarden sample files that 
uses DSSI synth plugins (rosegarden -> jackd -> 2i2) and everything 
worked.  I have fiddling to do to optimize the setup and get the levels 
right and so forth, but this was highly encouraging.

The audio quality is crisp, clean, and noise free.  I would probably 
want one of the variants with more inputs if I didn't have the mixer, 
and some of those variants were NOT reported as working.  The 2i2 was, 
and it does.

USB audio interfaces appear to be a very evil thing in modern times. 
They used to work well in the USB 1.0 days, but most current offerings 
are USB 2.0, and most of those are not class compliant.  I poked around 
for a few hours researching this that and the other before settling on 
the choice I did make.  It appears to be one of a very limited number of 
available options, and this one is now tested and approved by yours truly.

(Next up, a review of the Korg Triton Taktile 49.  My old controller 
keyboard is so obscure googling it just shows all the places I've talked 
about it over the years.  It's built like a tank, and should be 
repairable, but I just want something new after 20 years.  It has a MIDI 
OUT, but input comes from USB only.  I have no clue if I will be able to 
access the built-in sounds from Linux, and will report back once the 
keyboard arrives.)
-- 
D. Michael McIntyre

--
Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
Get real-time metrics from all of your servers, apps and tools
in one place.
SourceForge users - Click here to start your Free Trial of Datadog now!
http://pubads.g.doubleclick.net/gampad/clk?id=241902991=/4140
___
Rosegarden-user mailing list
Rosegarden-user@lists.sourceforge.net - use the link below to unsubscribe
https://lists.sourceforge.net/lists/listinfo/rosegarden-user