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A headphone audio fix for the Logitech USB Headset 350
Authored by: adrinux on Sep 26, '05 03:21:22PM

No idea why, but I have a similar problem with my Logitech Stereo USB 200 headset. I have to go into system prefs > sound and mute then unmute them to make them work when I want to use them - its the microphone that's more problematic than the headphones for me.

I've heard other people have the same problem and fix, and I also know that mine work fine on Windows XP - so it's not a hardware problem per se.




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A headphone audio fix for the Logitech USB Headset 350
Authored by: gwallace01451 on Nov 18, '05 05:55:12AM

I googled USB 350 Logitech and got:

http://lists.freebsd.org/pipermail/freebsd-multimedia/2005-April/002039.html

with some the text copied below:

3. Is your USB controller ohci or uhci?
uhci has no problem. But ohci has the full duplex problem.
microphone and speaker can't be use simultaneously without full duplex.
Then a USB headset can't be use with ohci.

But if you want to use it as headphone only, or microphone only,
ohci has no problem.

3'.If you want to use microphone and speaker simultaneously with uhci,
you must comment-out below lines
at function uaudio_init_params() in uaudio.c

if ((sc->sc_playchan.pipe != NULL) || (sc->sc_recchan.pipe != NULL))
return (-1);


Now I'm trying to figure out how to implement something 10.4.3.




---
Greg Wallace



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A headphone audio fix for the Logitech USB Headset 350
Authored by: hammerikaner on Nov 23, '05 01:10:06PM
I got sick of having to go to System Preferences and then to Sound and then check/uncheck mute to get my Logitech 350 USB headset to work, so I made an Applescript to automate this, from clues I found elsewhere on the intraweb.

tell application "System Preferences"
	set current pane to pane "com.apple.preference.sound"
end tell
tell application "System Events"
	tell process "System Preferences"
		click checkbox "Mute" of first group of window "Sound"
	end tell
end tell
tell application "System Events"
	tell process "System Preferences"
		click checkbox "Mute" of first group of window "Sound"
	end tell
end tell
I'm new to Applescript and have no idea what I'm doing, but this works for me (as long as the Logitech 350 is set to the main output source, I believe). I am also using SoundSource from Rogue Amoeba to quickly shift to the headphones from the default system sound. Additionally, I have set this to a trigger in Quicksilver (Shift-Cmd-M), so I can do it good and quick when I am answering a Skype call! Works well... but hopefully Logitech/Apple will come out with a fix for this, as it only seems to have started affecting me since I upgraded to 10.4.3.

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