Fred,

VBox 5.1.14. VM setup Core Audio & ICH97. In Guest I’m using “Intel Integrated 
Audio”. Did the procedure below and on #4 the hardware test says it does not 
detect any sound input. Line input doesn’t seem to work any more either. It did 
back in an earlier version of VBox, but I haven’t tested it for about 6 months 
or so. Wanted to run Audacity so cranked up the VM, but no go on sound input, 
sound output is fine.

When I can get somewhere to download the test version I’ll give it a go. 
Probably will be a week or so.

Cliff

> On Aug 27, 2016, at 7:35 PM, Fernando Cassia <[email protected]> wrote:
> 
> 
> On Sat, Aug 27, 2016 at 7:33 PM, Gregory Nowak <[email protected] 
> <mailto:[email protected]>> wrote:
> Use a usb mic/sound card, and pass it through to the guest. Recording
> audio on the guest using the host's sound card is not implemented in
> vbox.
> 
> Greg
> 
> Gregory, 
> 
> This is the first time I hear about this. I'm not sure this is correct. But f 
> course I could be wrong, as I have never used VBox on Mac hosts.
> 
> According to ticket#8573 <https://www.virtualbox.org/ticket/8573> a user 
> reported he got recording working by following this procedure:
> 
> (1) goto your guest os's master volume, set the properties to show all the 
> volume controls for playback.
> (2) Shall see few items (line-in,..) are muted.
> (3) "Unmute" and "turn up the volume" them all.
> (4) Goto Control Panel, test your sound recording. It shall work now.
> (5) Go back to the master volume, mute an "unmuted" item, go back to step 4 
> for testing; test the items one by one until you find the item(s) that you 
> cannot mute. 
> 
> In fact the release notes of 5.0.26 show
> ***Audio***: imlemented dynamic re-attaching of _input_/output devices on Mac 
> OS X hosts 
> 
> Cliff: could you please report what sound emulation you have enabled?
> Also, make sure you are using the latest greatest VBox 5.1.4 version , 
> released 11 days ago.
> 
> I say that because there were sound-related bug fixes in that build
> https://www.virtualbox.org/ticket/15611 
> <https://www.virtualbox.org/ticket/15611>
> 
> FC
> PS: If all of the above fails, and you have the time and will to test, you 
> could also install the 5.1 test builds and report back if you see any 
> difference
> https://www.virtualbox.org/wiki/Testbuilds 
> <https://www.virtualbox.org/wiki/Testbuilds>
> 
> -- 
> During times of Universal Deceit, telling the truth becomes a revolutionary 
> act
> - George Orwell
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