Re: JACK configuration

2011-01-18 Thread Robert Blair Mason Jr.
On Mon, 17 Jan 2011 14:00:49 -0800
Bob McGowan bob_mcgo...@symantec.com wrote:

 On 01/16/2011 11:15 AM, Robert Blair Mason Jr. wrote:
  Hi all,
  
  I am attempting to record audio on my laptop.  To this end, i've installed 
  Ardour/JACK.  I have *finally* managed to get ALSA to work.  However, I now 
  have a problem - the sound that is wired into the Mic In jack on the front 
  of the laptop will play back (so basically my laptop is functioning as a 
  speaker), but I can't seem to figure out how to get JACK to connect.  Can 
  anyone help me configure JACK so that the input will go to Ardour?  The 
  connection graph shows that system:capture1 and system:capture2 are wired 
  to go to Ardour:Audio In 1 and Ardour:Audio In 2, respectively (so it seems 
  like this should work).  However, when the Ardour is prepped for record, 
  the volume bars that indicate input volume are relatively static, while I 
  can hear sound being played back.  After recording, the track is silent.
  
  Portions of the output of amixer that look relevant:
  
 --deleted--
 
 I'm not sure the ALSA settings are relevant, because ...
 
  Any help would be much appreciated.
  
 
 Please note, this is by memory and it's been a while, I would need a
 little time to be able to verify my sound system setup.  With that caveat:
 
 First, to confirm that you have in fact set up to record:
 
 1.  IIRC, Ardour by default only has things set up for a pass through
 type of operation, which matches what you've described.  Again, IIRC,
 you will need to create a recording track and connect it between the
 master out and master in channels.
 
 I will verify exactly what I have set up as soon as I can and let you
 know the various settings.
 
 2.  If you believe things should be working because you've made
 connections, it may be you haven't gotten things correctly armed.  In
 the main window, in the controls section for the track you intend to
 record on, there is a small round icon, which must be selected to arm
 the track.
 
 In the top section, there is also a round icon in a button (a bit larger
 than the one mentioned above ;), to the right of the playback button.
 You must select it next.
 
 Then, select the playback button to start processing.  If everything is
 working, you should now see a light colored ribbon being created
 across the screen for the recording track only, and there should be two
 lines (assuming stereo input), inside the ribbon.  If volumes are high
 enough, the lines should show amplitude variations.
 
 -- 
 Bob McGowan
 

Thanks, I'm able to record now.  Still working on getting ardour to play back,
but if worst comes to worst I can just export the wav and play it through VLC :)

-- 
rbmj


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Re: JACK configuration

2011-01-17 Thread Bob McGowan
On 01/16/2011 11:15 AM, Robert Blair Mason Jr. wrote:
 Hi all,
 
 I am attempting to record audio on my laptop.  To this end, i've installed 
 Ardour/JACK.  I have *finally* managed to get ALSA to work.  However, I now 
 have a problem - the sound that is wired into the Mic In jack on the front of 
 the laptop will play back (so basically my laptop is functioning as a 
 speaker), but I can't seem to figure out how to get JACK to connect.  Can 
 anyone help me configure JACK so that the input will go to Ardour?  The 
 connection graph shows that system:capture1 and system:capture2 are wired to 
 go to Ardour:Audio In 1 and Ardour:Audio In 2, respectively (so it seems like 
 this should work).  However, when the Ardour is prepped for record, the 
 volume bars that indicate input volume are relatively static, while I can 
 hear sound being played back.  After recording, the track is silent.
 
 Portions of the output of amixer that look relevant:
 
--deleted--

I'm not sure the ALSA settings are relevant, because ...

 Any help would be much appreciated.
 

Please note, this is by memory and it's been a while, I would need a
little time to be able to verify my sound system setup.  With that caveat:

First, to confirm that you have in fact set up to record:

1.  IIRC, Ardour by default only has things set up for a pass through
type of operation, which matches what you've described.  Again, IIRC,
you will need to create a recording track and connect it between the
master out and master in channels.

I will verify exactly what I have set up as soon as I can and let you
know the various settings.

2.  If you believe things should be working because you've made
connections, it may be you haven't gotten things correctly armed.  In
the main window, in the controls section for the track you intend to
record on, there is a small round icon, which must be selected to arm
the track.

In the top section, there is also a round icon in a button (a bit larger
than the one mentioned above ;), to the right of the playback button.
You must select it next.

Then, select the playback button to start processing.  If everything is
working, you should now see a light colored ribbon being created
across the screen for the recording track only, and there should be two
lines (assuming stereo input), inside the ribbon.  If volumes are high
enough, the lines should show amplitude variations.

-- 
Bob McGowan


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JACK configuration

2011-01-16 Thread Robert Blair Mason Jr.
Hi all,

I am attempting to record audio on my laptop.  To this end, i've installed 
Ardour/JACK.  I have *finally* managed to get ALSA to work.  However, I now 
have a problem - the sound that is wired into the Mic In jack on the front of 
the laptop will play back (so basically my laptop is functioning as a speaker), 
but I can't seem to figure out how to get JACK to connect.  Can anyone help me 
configure JACK so that the input will go to Ardour?  The connection graph shows 
that system:capture1 and system:capture2 are wired to go to Ardour:Audio In 1 
and Ardour:Audio In 2, respectively (so it seems like this should work).  
However, when the Ardour is prepped for record, the volume bars that indicate 
input volume are relatively static, while I can hear sound being played back.  
After recording, the track is silent.

Portions of the output of amixer that look relevant:

Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 18 [58%] [-7.50dB] [on]
  Front Right: Playback 18 [58%] [-7.50dB] [on]
Simple mixer control 'Mic Boost',0
  Capabilities: volume penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%]
  Front Right: 0 [0%]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 31
  Front Left: Capture 25 [81%] [25.50dB] [off]
  Front Right: Capture 25 [81%] [25.50dB] [off]
Simple mixer control 'Capture',1
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 31
  Front Left: Capture 25 [81%] [25.50dB] [off]
  Front Right: Capture 25 [81%] [25.50dB] [off]
Simple mixer control 'Input Source',0
  Capabilities: cenum
  Items: 'Mic' 'Front Mic' 'Line' 'CD'
  Item0: 'Mic'
Simple mixer control 'Input Source',1
  Capabilities: cenum
  Items: 'Mic' 'Front Mic' 'Line' 'CD'
  Item0: 'Mic'

Any help would be much appreciated.

-- 
rbmj


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Re: JACK configuration

2011-01-16 Thread green
Robert Blair Mason Jr. wrote at 2011-01-16 12:15 -0700:
 Can anyone help me configure JACK so that the input will go to Ardour?

I have not used jack much or ardour at all, but qjackctl has helped me with a 
few little audio tricks I have done.  Perhaps it will help you.


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