Lag when using module-loopback
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
pulseaudio (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: pulseaudio
Using
pactl load-module module-loopback
I can route the mic input through output. However, the audio that comes out is about half a second behind the audio coming in. This is okay for some things, but for others, like musical instruments, game consoles, etc., the lag makes it pretty much unusable for these uses.
Back in alsa this used to work fine without lag.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: pulseaudio 1:0.9.22~
ProcVersionSign
Uname: Linux 2.6.32-19-generic x86_64
NonfreeKernelMo
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/pcmC0D0c: matthew 10508 F...m pulseaudio
/dev/snd/pcmC0D0p: matthew 10508 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfe9fc000 irq 21'
Mixer name : 'SigmaTel STAC9228'
Components : 'HDA:14f12c06,
Controls : 23
Simple ctrls : 12
Date: Sun Apr 18 21:42:33 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318)
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: pulseaudio
dmi.bios.date: 03/10/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0U990C
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: Inspiron 1525
dmi.sys.vendor: Dell Inc.
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. controlC1: jack 1260 F.... pulseaudio controlC0: jack 1260 F.... pulseaudio 08800000, 00090500' /'saa7133[ 0] at 0xf1004000 irq 19' dules: nvidia 0.9.21+ stable- queue-32- g8478-0ubuntu14 ture: i386 ature: Ubuntu 2.6.32- 22.33-generic 2.6.32.11+drm33.2 twareInternatio nal,Inc. :bvrF4: bd09/02/ 2004:svn: pn:pvr: rvnGigabyteTech nologyCo. ,Ltd.:rn8I915GM F:rvrx. x:cvn:ct3: cvr:
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf2000000 irq 16'
Mixer name : 'Realtek ALC880'
Components : 'HDA:10ec0880,
Controls : 38
Simple ctrls : 21
Card1.Amixer.info:
Card hw:1 'SAA7134'
Mixer name : 'SAA7134 Mixer'
Components : ''
Controls : 6
Simple ctrls : 3
DistroRelease: Ubuntu 10.04
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
NonfreeKernelMo
Package: pulseaudio 1:0.9.22~
PackageArchitec
ProcEnviron:
PATH=(custom, user)
LANG=hu_HU.utf8
SHELL=/bin/bash
ProcVersionSign
Tags: lucid
Uname: Linux 2.6.32-22-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 09/02/2004
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F4
dmi.board.name: 8I915GMF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.modalias: dmi:bvnAwardSof