Thank you for reporting this bug to Ubuntu. Ubuntu 10.10 (maverick) reached end-of-life on April 10, 2012.
See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases Please upgrade to the latest version and re-test. ** Changed in: pulseaudio (Ubuntu) Status: Confirmed => Incomplete ** Project changed: pulseaudio => mir ** No longer affects: mir ** Bug watch removed: PulseAudio sound server #866 http://pulseaudio.org/ticket/866 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/660567 Title: pa_simple_drain() takes over 2 seconds to complete! Status in pulseaudio package in Ubuntu: Incomplete Bug description: Binary package hint: pulseaudio The libpulse-simple API has a function, pa_simple_drain() which is supposed to "[w]ait until all data already written is played by the daemon". However in Ubuntu 10.10, it waits a *fair* bit more than that, namely several seconds(!) This means, that when I want to synchronize audio in my program ie. ensure that previously streamed audio has finished playing, e.g. before I start playing a new sound or just prior to exiting the program, there is a typically 2.2 second extra delay! Without this call, at the end of playback before exiting, the final sound will be clipped off at the end, since there is still unbuffered audio waiting to be sent, so it is needed to call this at the end of the program, but now in 10.10, it causes an extra delay of several seconds before the program exits. I have attached a program that demonstrates this behaviour. Compile with: $ gcc `pkg-config --cflags --libs libpulse-simple` -o beep beep.c Here is the output from the program: $ ./beep [0.039147] playing 440 hz tone volume 50 for 500 ms [0.291107] play done [0.291116] not calling pa_simple_drain() [0.293467] playing 680 hz tone volume 50 for 500 ms [0.855440] play done [0.855459] not calling pa_simple_drain() [0.857808] playing 440 hz tone volume 50 for 500 ms [1.312107] play done [3.544309] pa_simple_drain() done [3.546687] playing 680 hz tone volume 50 for 500 ms [3.798973] play done [6.132183] pa_simple_drain() done [6.134535] playing 440 hz tone volume 50 for 500 ms [6.386808] play done [6.386824] not calling pa_simple_drain() [6.386851] playing 440 hz tone volume 0 for 500 ms [6.951772] play done [6.951789] not calling pa_simple_drain() [6.956659] playing 880 hz tone volume 50 for 1000 ms [7.912965] play done [10.144917] pa_simple_drain() done I am reporting this here rather than upstream, since I have observed it in latest Ubuntu, and I don't think it was in 10.04, but if it is determined to be a PulseAudio bug I will report it upstream as well... ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: pulseaudio 1:0.9.22~0.9.21+stable-queue-32-g8478-0ubuntu21 ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: th 10977 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfdffc000 irq 45' Mixer name : 'Analog Devices AD1984' Components : 'HDA:11d41984,10280214,00100400' Controls : 21 Simple ctrls : 14 Date: Thu Oct 14 15:21:42 2010 InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Release Candidate amd64 (20100419.1) ProcEnviron: PATH=(custom, user) LANG=en_GB.utf8 SHELL=/bin/bash SourcePackage: pulseaudio dmi.bios.date: 08/14/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A08 dmi.board.name: 0TP412 dmi.board.vendor: Dell Inc. dmi.chassis.type: 7 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA08:bd08/14/2008:svnDellInc.:pnPrecisionWorkStationT3400:pvr:rvnDellInc.:rn0TP412:rvr:cvnDellInc.:ct7:cvr: dmi.product.name: Precision WorkStation T3400 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/660567/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
