Garbled and double speed input with usb microphone on xp pro sp3 32 bit

[Brian P. Barnes]

Host Asus p5q3 deluxe wifi mobo, lga 775, p45/ich10r chipset, Intel core 2 quad q9550, 2.83 ghz, 4gb ddr3 ATI R4850 512 MB video ubuntu 9.04 64 bit workstation, fully patched Plantronics cs50 usb headset

guest xp pro sp3 32 bit, fully patched. Zonealarm firewall, avira AV 1.6gb memory, 2 cores, vtx enabled, nested paging enabled, 16 gb vdi, 8 gb free pcnet-fast iii nat network, 2 shard folders all 3 host drivers, pulse, oss and alsa all tried.

Bug Microphone works perfectly on host, records high quality voice. When recording in xp guest, every other syllable is dropped out. Even slowly and clearly spoken recordings are nearly 100% indeciperable. Extremely choppy. Sounds as though it is being played back at 2x speed. Recording using Nero 7 ultra. Also, Dragon Naturally Speaking has 1% hit rate and can not be trained. Every word must be repeated ~15 times during aborted training. Hundreds of similar reports found in Google search on "virtualbox usb microphone xp" going back at least 3 years.

In xp -> control panel -> sound and audio -> sound recording, selecting cs50 produces nothing but static noise. Only intel integrated audio works at all.

The microphone works perfectly on xp/native and on host.

[Brian P. Barnes]

example of garbled voice recording

[Crimson]

I'm facing exactly the same problem:

Host: [root@piedpiper ~]# uname -ar Linux piedpiper 2.6.30.8-64.fc11.i686.PAE #1 SMP Fri Sep 25 04:56:58 EDT 2009 i686 i686 i386 GNU/Linux

uses pulseaudio for sound

Hardware: Lenovo T60 Memory: 1.5G Processor 0: Intel(R) Core(TM) Duo CPU T2400 @1.83GHz Processor 1: Intel(R) Core(TM) Duo CPU T2400 @1.83GHz

Guest: Microsoft Windows XP Professional, Version 2002 Service Pack 3

VM is configured using Intel ICH AC97 for sound.

This defect prevents me from using VB seamlessly.

[michelec]

confirm the same problem. exactly the same setup of the previous poster. configuring audio as ALSA gives choppy output but (barely) usable microphone input. input as PulseAudio gives crystal-clear output but completely garbaged input.

[Frank Mehnert]

Are you guys passing the USB microphone to the guest? The suggested use is to handle the USB microphone completely in the host and use the microphone over the host audio backend.

[Crimson]

Frank,

It seems that the flaw might be in the interaction of host audio backend and VirtualBox.

See bug 4302

​http://www.virtualbox.de/ticket/4302

I still have to see a post somewhere that says it works. Please let us know if we can be of any assistance in terms of running tests or generating logs.

[Crimson]

Could one of the VB dev guys please have a look at the discussion thats happened in ticket 4302

​http://www.virtualbox.org/ticket/4302

The problem could be because of PulseAudio too.

[aeichner]

Please reopen if still relevant with a recent VirtualBox release.