VirtualBox

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Ticket Resolution Summary Owner Reporter
#3137 duplicate Audio with OSX host and vista ultimate 64 guest yatman
Description

I am running osx 10.5.6 and 2.1.2 Virtual Box. I installed Vista Ultimate 64 and I am having audio problems. The following combinations don't seem to do anything:

1) Null Audio/ICH AC97 2) Null Audio/Soundblaster

3)CoreAudio/ICH AC97 4)CoreAudio/Soundblaster

Randomly, Windows detects a multimedia device but can't seem to locate any drivers.

#5088 obsolete Audio-processing overloads processor and slows output to a stop J.L. Blom
Description

I'm running virtualbox on an AMD Phenom II 4-core, 4GB memory. Host Os is Ubuntu jaunty (9.04). The guest OS is Windows XP + SP2 which I run with one core enabled. I'm running a rather heavy application in the guest which use sound intensively.This application, Finale, is a music notation program which can play the score written. When I have a score of say 100 bars, and let it play then after a few bars, the tempo of playing diminishes until, instead of say 90 bpm (beats/min.) it slows to less then 10 (and then I cut it off). When I look at the load, one processor runs at 100% continuously. When I play sound in e.g.a youtube film, the load is much lower although considerable, approx. 75% of one processor (but it is of course video and sound) but the sound is equal throughout. I have used the program on an original Windows installation on a slow system and I didn't have this problem ( although the sound reproduction was imperfect due to memory limitations). The audio is the board-integrated audio controller VIA 1708S. Virtualbox host driver: OSS Controller: ICH AC97. This is the best setting as with Pulse-audio the sound is distorted and the choice Soundblaster16 (as host driver) doesn't work at all. It is very important for me to have it solved as I use the program on a daily base.

#9556 fixed Audio: cannot be disabled in guest (Windows 7) Technologov
Description

Host: Windows 7 x64 + VBOX 4.1.2

Guest: Windows 7 x64 + Intel HD Audio

When guest plays audio, it cannot be disabled using Windows Sound Mixer from within guest, but only from host. It looks like incorrect emulation of the HDA controller.

-Technologov, 2011-09-03

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