[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.] ** Changed in: pulseaudio (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1024955 Title: Changing volume while parec records monitor causes sound to studder To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
Hello Raymond. I do not really understand what your message means to us or what we should do in your opinion. Either the grammar on this sentence is wrong, or my english is worse than I thought. Nevertheless thank you for pointing out stream volumes and sink volume. Because of that I was to add: If you have 3 streams connected to one sink, and then one stream changes volume, then the whole sink is rewinded. I am rather sure, that it's this rewind that breaks the audio stream you can record from the sink.monitor source. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1024955 Title: Changing volume while parec records monitor causes sound to studder To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
> Expected: monitor device is not linked to output volume therefore sound should be recorded without interference from regular system use. if sink. monitor signal just the mixed output of serveral streams before send to the sink , the software volume of each stream should affect the signal ** Changed in: pulseaudio (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1024955 Title: Changing volume while parec records monitor causes sound to studder To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
https://wiki.ubuntu.com/PulseAudio/Log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1024955 Title: Changing volume while parec records monitor causes sound to studder To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: pulseaudio (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1024955 Title: Changing volume while parec records monitor causes sound to studder To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
still present in Pulseaudio 4.0 on Ubuntu 13.10 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1024955 Title: Changing volume while parec records monitor causes sound to studder To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
** Description changed:
- Changing volume while parec records monitor causes sound to stutter
- (synonyms: lag, jump, skips). This was tested on audio coming from
- Firefox/Flash as well as VLC. Both applications produce the same result.
+ Changing volume while parec records monitor causes recorded sound to
+ stutter (synonyms: lag, jump, skips). This was tested on audio coming
+ from Firefox/Flash as well as VLC. Both applications produce the same
+ result.
How to reproduce:
1) Use the following script which finds the monitor pseudo-device and records
its output to a file using sox.
#!/bin/bash
#This script requires sox, if not installed, run " sudo apt-get install sox"
command first.
# Get PA sink monitor name:
MONITOR=$(pactl list | grep -A2 '^Source #' | grep 'Name: .*\.monitor$' |
awk '{print $NF}' | tail -n1)
# Record monitor output
echo "Recording from $MONITOR"
echo "Press Ctrl-C or close window to stop recording"
parec -d "$MONITOR" | sox -t raw -r 44100 -sLb 16 -c 2 - ~/output.wav
2) While it is recording, play with the volume controls (top panel
volume/speaker icon) to bring the volume all the way down, and then all
the way up using your mouses scroll wheel or touchpads scroll
functionality.
Result: recorded sound stutter or lags
Expected: monitor device is not linked to output volume therefore sound
should be recorded without interference from regular system use.
Question: Trying to find the cause of the interference is beyond me.
Could this issue be related to sox? If so, could someone recommend or
test this script with a different program?
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pulseaudio-utils 1:1.1-0ubuntu15.1
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic-pae 3.2.19
Uname: Linux 3.2.0-26-generic-pae i686
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
List of PLAYBACK Hardware Devices
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
ArecordDevices:
List of CAPTURE Hardware Devices
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: komputes 1936 F pulseaudio
komputes 3871 F pulseaudio
/dev/snd/pcmC0D0p: komputes 3871 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf054 irq 44'
Mixer name : 'Realtek ALC268'
Components : 'HDA:10ec0268,102802b0,00100101'
Controls : 17
Simple ctrls : 10
Date: Sun Jul 15 08:30:10 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386
(20120423.2)
ProcEnviron:
TERM=xterm
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/09/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: CN0J14
dmi.board.vendor: Dell Inc.
dmi.board.version: A07
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A07
dmi.modalias:
dmi:bvnDellInc.:bvrA07:bd04/09/2010:svnDellInc.:pnInspiron910:pvrA07:rvnDellInc.:rnCN0J14:rvrA07:cvnDellInc.:ct8:cvrA07:
dmi.product.name: Inspiron 910
dmi.product.version: A07
dmi.sys.vendor: Dell Inc.
** Description changed:
Changing volume while parec records monitor causes recorded sound to
- stutter (synonyms: lag, jump, skips). This was tested on audio coming
- from Firefox/Flash as well as VLC. Both applications produce the same
- result.
+ stutter (synonyms: lag, jump, skips). The output sound does not studder
+ or lag, only the file of the recording suffers from the volume
+ modification. This was tested on audio coming from Firefox/Flash as well
+ as VLC. Both applications produce the same result.
How to reproduce:
1) Use the following script which finds the monitor pseudo-device and records
its output to a file using sox.
#!/bin/bash
#This script requires sox, if not installed, run " sudo apt-get install sox"
command first.
# Get PA sink monitor name:
MONITOR=$(pactl list | grep -A2 '^Source #' | grep 'Name: .*\.monitor$' |
awk '{print $NF}' | tail -n1)
# Record monitor output
echo "Recording from $MONITOR"
echo "Press Ctrl-C or close window to stop recording"
parec -d "$MONITOR" | sox -t raw -r 44100 -sLb 16 -c 2 - ~/output.wav
2) While it is recording, play with the volume controls (top panel
volume/speaker icon) to bring the volume all the way down, and then all
the way up using your mouses scroll wheel or touchpads scroll
functionality.
Result: recorded sound stutter or lags
Expected: monitor device is not linked to output volume t
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
** Attachment added: "Volume modification recording causing long lag" https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+attachment/3224102/+files/dsterry%20-%20ubuntus%20da%20bomb%20-%20mod%20volume%20long%20lag.wav -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1024955 Title: Changing volume while parec records monitor causes sound to studder To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
** Attachment added: "Volume modification recording causing studder" https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+attachment/3224101/+files/dsterry%20-%20ubuntus%20da%20bomb%20-%20mod%20volume%20studder.wav -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1024955 Title: Changing volume while parec records monitor causes sound to studder To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
** Attachment added: "Normal recording (no volume modification)" https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+attachment/3224100/+files/dsterry%20-%20ubuntus%20da%20bomb%20-%20normal.wav -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1024955 Title: Changing volume while parec records monitor causes sound to studder To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1024955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1024955] Re: Changing volume while parec records monitor causes sound to studder
** Description changed:
Changing volume while parec records monitor causes sound to stutter
(synonyms: lag, jump, skips). This was tested on audio coming from
Firefox/Flash as well as VLC. Both applications produce the same result.
How to reproduce:
1) Use the following script which finds the monitor pseudo-device and records
its output to a file using sox.
#!/bin/bash
#This script require sox, if not installed, run " sudo apt-get install sox"
command first.
# Get PA sink monitor name:
MONITOR=$(pactl list | grep -A2 '^Source #' | grep 'Name: .*\.monitor$' |
awk '{print $NF}' | tail -n1)
# Record monitor output
- echo "Recording from $MONITOR"
+ echo "Recording from $MONITOR"
echo "Press Ctrl-C or close window to stop recording"
parec -d "$MONITOR" | sox -t raw -r 44100 -sLb 16 -c 2 - ~/output.wav
- 2)While it is recording, play with the volume controls (top panel
+ 2) While it is recording, play with the volume controls (top panel
volume/speaker icon) to bring the volume all the way down, and then all
the way up using your mouses scroll wheel or touchpads scroll
functionality.
Result: recorded sound stutter or lags
Expected: monitor device is not linked to output volume therefore sound
should be recorded without interference from regular system use.
Question: Trying to find the cause of the interference is beyond me.
Could this issue be related to sox? If so, could someone recommend or
test this script with a different program?
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pulseaudio-utils 1:1.1-0ubuntu15.1
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic-pae 3.2.19
Uname: Linux 3.2.0-26-generic-pae i686
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
- List of PLAYBACK Hardware Devices
- card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
-Subdevices: 0/1
-Subdevice #0: subdevice #0
+ List of PLAYBACK Hardware Devices
+ card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
+ Subdevices: 0/1
+ Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
ArecordDevices:
- List of CAPTURE Hardware Devices
- card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
-Subdevices: 1/1
-Subdevice #0: subdevice #0
+ List of CAPTURE Hardware Devices
+ card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
+ Subdevices: 1/1
+ Subdevice #0: subdevice #0
AudioDevicesInUse:
- USERPID ACCESS COMMAND
- /dev/snd/controlC0: komputes 1936 F pulseaudio
- komputes 3871 F pulseaudio
- /dev/snd/pcmC0D0p: komputes 3871 F...m pulseaudio
+ USERPID ACCESS COMMAND
+ /dev/snd/controlC0: komputes 1936 F pulseaudio
+ komputes 3871 F pulseaudio
+ /dev/snd/pcmC0D0p: komputes 3871 F...m pulseaudio
Card0.Amixer.info:
- Card hw:0 'Intel'/'HDA Intel at 0xf054 irq 44'
-Mixer name : 'Realtek ALC268'
-Components : 'HDA:10ec0268,102802b0,00100101'
-Controls : 17
-Simple ctrls : 10
+ Card hw:0 'Intel'/'HDA Intel at 0xf054 irq 44'
+ Mixer name : 'Realtek ALC268'
+ Components : 'HDA:10ec0268,102802b0,00100101'
+ Controls : 17
+ Simple ctrls : 10
Date: Sun Jul 15 08:30:10 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386
(20120423.2)
ProcEnviron:
- TERM=xterm
- PATH=(custom, user)
- LANG=en_US.UTF-8
- SHELL=/bin/bash
+ TERM=xterm
+ PATH=(custom, user)
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/09/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: CN0J14
dmi.board.vendor: Dell Inc.
dmi.board.version: A07
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A07
dmi.modalias:
dmi:bvnDellInc.:bvrA07:bd04/09/2010:svnDellInc.:pnInspiron910:pvrA07:rvnDellInc.:rnCN0J14:rvrA07:cvnDellInc.:ct8:cvrA07:
dmi.product.name: Inspiron 910
dmi.product.version: A07
dmi.sys.vendor: Dell Inc.
** Description changed:
Changing volume while parec records monitor causes sound to stutter
(synonyms: lag, jump, skips). This was tested on audio coming from
Firefox/Flash as well as VLC. Both applications produce the same result.
How to reproduce:
1) Use the following script which finds the monitor pseudo-device and records
its output to a file using sox.
#!/bin/bash
- #This script require sox, if not installed, run " sudo apt-get install sox"
command first.
+ #This script requires sox, if not installed, run " sudo apt-get install sox"
command first.
# Get PA sink monitor name:
MONITOR=$(pactl list | grep -A2 '^Source #' | grep 'Name: .*\.monitor$' |
awk '{print $NF}' | tail -n1)
# Record monitor o
