20 Aug
2015
20 Aug
'15
12:21 p.m.
Hello List,
i am new to this list so forgive if this has been discussed before - a
quick search of the archives didnt reveal anything relevant.
I am trying to build an audio metering device (stereo only for now),
with the purpose of monitoring my video editing system. Right now this
is based on a RPi running Arch Linux ARM. As the window manager i
decided for i3 tiling WM. The RPi has a 7" 800x480 Touchscreen connected
(to be able to reset EBU R128 measuring Keyboard and Mouse-less). As a
soundcard i am using the Behringer U-Control UCA222, connected to a
Samson C-Control as the audio splitter for speaker monitoring etc.
As the software i am playing with the ebumeter, yass & jaaa from Kokkini
Zita (http://kokkinizita.linuxaudio.org/linuxaudio/). I installed the
jackmeterbridge tools as well.
I am still trying to figure out what software will be useful in "real
life" situation, meaning what is the RPi capable of handling CPU wise
(jaaa pushed it to its limits naturally).
- So i wondering, has anyone done something similar before and can share
his / her experiences?
- Are there other software tools that i have missed that would be worth
looking at?
- Especially screen estate is a problem with a 800x480 pixel screen.
Jass fits barely, ebumeter is super small etc. Is there a way to scale
fixed width tools differently to make a nicer screen layout?
best,
t.
20 Aug
20 Aug
7:25 p.m.
On 08/20/2015 12:21 PM, laulau wrote:
Hello List,
i am new to this list so forgive if this has been discussed before - a
quick search of the archives didnt reveal anything relevant.
I am trying to build an audio metering device (stereo only for now),
with the purpose of monitoring my video editing system. Right now this
is based on a RPi running Arch Linux ARM. As the window manager i
decided for i3 tiling WM. The RPi has a 7" 800x480 Touchscreen connected
(to be able to reset EBU R128 measuring Keyboard and Mouse-less). As a
soundcard i am using the Behringer U-Control UCA222, connected to a
Samson C-Control as the audio splitter for speaker monitoring etc.
As the software i am playing with the ebumeter, yass & jaaa from Kokkini
Zita (http://kokkinizita.linuxaudio.org/linuxaudio/). I installed the
jackmeterbridge tools as well.
I am still trying to figure out what software will be useful in "real
life" situation, meaning what is the RPi capable of handling CPU wise
(jaaa pushed it to its limits naturally).
- So i wondering, has anyone done something similar before and can share
his / her experiences?
- Are there other software tools that i have missed that would be worth
looking at?
https://github.com/x42/meters.lv2 (if you have a new RPi with openGL,
debian package: x42-plugins) and https://github.com/jiixyj/libebur128/
- Especially screen estate is a problem with a 800x480
pixel screen.
Jass fits barely, ebumeter is super small etc. Is there a way to scale
fixed width tools differently to make a nicer screen layout?
best,
t.
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
10:03 p.m.
Hey Robin & Fons,
thanks for the replies.
Robin: I must admit that i didn't know the RPi is capable of OpenGL. I
have the "old" RPi (B Version) but as far as i googled, it could do
OpenGL as well, so i will try to run LV2.
Fons: i found your jmeters before and obviously it is great that they
have correct response. I must admit though, that i am not a big fan of
the analog meter style (probably i am just not used to it) and i didnt
find the digital style jackmeters have, or is it already there but just
not documented?
At the TV station i work at we have the RTW TM7
https://www.rtw.com/de/produkte/audio-monitor/touchmonitor-tm7.html
Robin: I never quite understood advantage of the loudness radar which
the RTW device also feautres vs. a horizontal way of displaying the
programs loudness... i think something like the ebumeter combined with
yass oscilloscope (with an additional timescale) would be perfect to get
a quick overview of the dynamic range...
To both of you thanks for your excellent work, i try to get the
"perfect" layout figured out.
cheers,t.
Am 20.08.15 um 19:25 schrieb Robin Gareus:
On 08/20/2015 12:21 PM, laulau wrote:
Hello List,
i am new to this list so forgive if this has been discussed before - a
quick search of the archives didnt reveal anything relevant.
I am trying to build an audio metering device (stereo only for now),
with the purpose of monitoring my video editing system. Right now this
is based on a RPi running Arch Linux ARM. As the window manager i
decided for i3 tiling WM. The RPi has a 7" 800x480 Touchscreen connected
(to be able to reset EBU R128 measuring Keyboard and Mouse-less). As a
soundcard i am using the Behringer U-Control UCA222, connected to a
Samson C-Control as the audio splitter for speaker monitoring etc.
As the software i am playing with the ebumeter, yass & jaaa from Kokkini
Zita (http://kokkinizita.linuxaudio.org/linuxaudio/). I installed the
jackmeterbridge tools as well.
I am still trying to figure out what software will be useful in "real
life" situation, meaning what is the RPi capable of handling CPU wise
(jaaa pushed it to its limits naturally).
- So i wondering, has anyone done something similar before and can share
his / her experiences?
- Are there other software tools that i have missed that would be worth
looking at?
https://github.com/x42/meters.lv2 (if you have a new RPi with openGL,
debian package: x42-plugins) and https://github.com/jiixyj/libebur128/
> - Especially screen estate is a problem with a 800x480 pixel screen.
> Jass fits barely, ebumeter is super small etc. Is there a way to scale
> fixed width tools differently to make a nicer screen layout?
>
> best,
> t.
> _______________________________________________
> Linux-audio-user mailing list
> Linux-audio-user(a)lists.linuxaudio.org
> http://lists.linuxaudio.org/listinfo/linux-audio-user 
10:56 p.m.
On Thu, Aug 20, 2015 at 10:03:13PM +0200, laulau wrote:
Fons: i found your jmeters before and obviously it is
great that they
have correct response. I must admit though, that i am not a big fan of
the analog meter style (probably i am just not used to it) and i didnt
find the digital style jackmeters have, or is it already there but just
not documented?
Jmeters is all 'old' style, but jkmeter is a 'digital' one.
See the zita-mu1 entry for how they look.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
21 Aug
21 Aug
4:07 a.m.
On 08/20/2015 10:03 PM, laulau wrote:
Robin: I never quite understood advantage of the
loudness radar which
the RTW device also feautres vs. a horizontal way of displaying the
programs loudness...
The circular display lends itself to present a lot of information in a
small area. As with needle meters you can keep the eyes focused on a
small spot. A moving X/Y history or histogram are harder to follow (for
most people anyway) but as usual there's taste and habits.
Still going with Fons' jmeters, jkmeters and ebur128 may prove to be
more efficient on the RPi.
i think something like the ebumeter combined with
yass oscilloscope (with an additional timescale) would be perfect to get
a quick overview of the dynamic range...
There's also https://github.com/x42/sisco.lv2/ but that's rather
intended for measurements (it behaves like a traditional scope and does
not scroll). In any case both meters.lv2 and sisco.lv2 also come as
standalone jack app (no need to fire up an LV2 host), note however that
the default OPTIMIZATIONS (Makefile) are for Intel platform and not for
RPi/ARM.
On a related subject, some LAUs built a similar device (they may chime
in) and on the way wrote https://github.com/rvega/window-positions in
order to automatically position the various meters on the screen.
best,
robin
20 Aug
20 Aug
8:32 p.m.
On Thu, Aug 20, 2015 at 12:21:07PM +0200, laulau wrote:
As the software i am playing with the ebumeter, yass
& jaaa from Kokkini
Zita (http://kokkinizita.linuxaudio.org/linuxaudio/). I installed the
jackmeterbridge tools as well.
Then also have a look at jmeters on http://kokkinizita.linuxaudio.org/linuxaudio.
A collection of classic analog meters, all with the correct response
and very lightweight.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
8:40 p.m.
On Thu, 20 Aug 2015 18:32:47 +0000
Fons Adriaensen <fons(a)linuxaudio.org> wrote:
On Thu, Aug 20, 2015 at 12:21:07PM +0200, laulau
wrote:
Then also have a look at jmeters on
http://kokkinizita.linuxaudio.org/linuxaudio.
Fons, the only meters there are ebumeter and jnoisemeter. Did something get
left out?
--
======================================================================
Joe Hartley - UNIX/network Consultant - jh(a)brainiac.com
Without deviation from the norm, "progress" is not possible. - FZappa
9:49 p.m.
On 08/20/2015 08:39 PM, Joe Hartley wrote:
On Thu, 20 Aug 2015 18:32:47 +0000
Fons Adriaensen <fons(a)linuxaudio.org> wrote:
No, jmeters has a complete set, EBU, DIN, BBC and Nordic. It was also
used as foundation for meters.lv2.
ciao,
robin
On Thu, Aug 20, 2015 at 12:21:07PM +0200, laulau
wrote:
Then also have a look at jmeters on
http://kokkinizita.linuxaudio.org/linuxaudio.
Fons, the only meters there are ebumeter and jnoisemeter. Did something get
left out?
9:52 p.m.
On 08/20/2015 09:49 PM, Robin Gareus wrote:
On 08/20/2015 08:39 PM, Joe Hartley wrote:
sorry for the double-post. jmeters is indeed left out on the main page.
It's listed at on the downloads page:
http://kokkinizita.linuxaudio.org/linuxaudio/downloads/
best,
robin
On Thu, 20 Aug 2015 18:32:47 +0000
Fons Adriaensen <fons(a)linuxaudio.org> wrote:
No, jmeters has a complete set, EBU, DIN, BBC and Nordic. It was also
used as foundation for meters.lv2. On Thu, Aug 20, 2015 at 12:21:07PM +0200, laulau
wrote:
Then also have a look at jmeters on
http://kokkinizita.linuxaudio.org/linuxaudio.
Fons, the only meters there are ebumeter and jnoisemeter. Did something get
left out?
9:59 p.m.
On Thu, Aug 20, 2015 at 02:39:51PM -0400, Joe Hartley wrote:
On Thu, 20 Aug 2015 18:32:47 +0000
Fons Adriaensen <fons(a)linuxaudio.org> wrote:
Jmeters and jkmeter are on the downloads page only. I should add
some advertising...
Jkmeter is what you want for serious audio work. It's based on the
ideas of mastering guru Bob Katz and measures both RMS and peak.
Also very lightweight, just X11, no toolkits, not even cairo.
If you want more control over monitoring have a look at zita-mu1
which includes the kmeter.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
On Thu, Aug 20, 2015 at 12:21:07PM +0200, laulau
wrote:
Then also have a look at jmeters on
http://kokkinizita.linuxaudio.org/linuxaudio.
Fons, the only meters there are ebumeter and jnoisemeter. Did something get
left out?
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9 comments
5 participants
participants (5)
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Joe Hartley -
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Robin Gareus -
Robin Gareus