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August 19th, 2007 17:00

Vostro 1000 Audio In Problems

Hi,
Ive just purchased a Vostro 1000. Ive tried plugin an audio device in through the line in socket but theres no sound through the PC speakers. Ive checked all the sound options in Vista Home Basic, but all you have in Speakers/Headphones - Levels - is a speakers icon. Ive seen other laptops that have line in muted, but i cant even find a line in level.
Sound driver is - SIGMATEL STAC 92XX C-Major HD Audio
 
Would be grateful for your help
 
ps ive already tried downloading the latest driver on the dell site but that hasnt worked

4 Operator

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13.6K Posts

August 20th, 2007 02:00

The problem you describe is normal for the Dell laptops. Dell eliminates the ability to monitor the input jack in the Registry. This is pretty easy to fix in models with XP, but more dicey in Vista. The Vista solution works for some, not for others. I don't think anyone has tried it in a Vostro yet.

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Dell ships with the ability to monitor the input jack turned off. For models with the Sigmatel 92xx audio chip & driver an edit in the Registry of the value EnableInputMonitor will restore the monitoring function. However this value is not included in the Registry of Windows Vista operating system and so you must type it in.

[Create a System Restore point before editing the Registry! To create a new Restore Point go to Start/Help & Support/System Restore and tick 'Create a restore point'.]


1. Go to the Start menu and click on Run.
2. Type 'regedit' without quotes and click OK to open the Registry.
3. Click on File/export and save a copy of the Registry to your desktop (optional if you created a Restore Point).
4. Using the + signs in the left pane, navigate through the registry to get to this location:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E96C-E325-11CE-BFC1-08002BE10318}\0000\Settings\filter\SpeakerHp

5. Click on the key SpeakerHP to select it.
6. In the right pane, right click and select New > Binary Value.
7. Type 'EnableInputMonitor' without quotes and then press Enter.
8. Right click on the new name and select 'Modify'.
9. In the 'Value data' box, add 01 to the existing 0000, then click OK.
10. Exit the Registry and restart the computer.
11. After restart, enable input monitor in audio properties.
(Right click your speaker in program tray. Click Playback devices. Right click on Speakers/Headphones and click properties. Click on levels tab. You will now see a box saying input monitor. Click the speaker picture.)

(Thanks to forum members ethan_hines, fuzzy34, and chef moore for figuring this out.)

Jim

August 20th, 2007 17:00

Fantastic.. This works on my Vostro!
 
Thank You so much :-)

October 10th, 2007 19:00

Just a quick question... ive now plugged my audio device in the line in port and sound is coming through the speakers fine..but now id like to record the audio but mute the sound through the speakers. Ive tried a few things and each one mutes the audio thats recording so i get nothing :-(
 
Thanks

4 Operator

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13.6K Posts

October 11th, 2007 00:00

Thanks for the feedback re the Registry edit.

If muting the Input Monitor control on the playback tab doesn't mute it I don't know what else to try.

Jim

2 Posts

October 25th, 2007 17:00

I've got the vostro 1700 and have the same problem (lack of Input Monitoring). I've added the registry keys (as described, in the correct part of the registry), restarted the computer and still no check box to enable Input Monitoring. Can anyone suggest a fix?

February 9th, 2008 02:00

I have the vostro 1000 with xp
got close to thinking it was fixed, got all the way to the 0000 folder in registry it has no + folder to open for  Settings\filter\SpeakerHp....?  I did a system restore because I had previously updated the driver thinking it had changed it's registry  
Anyone have the same issue?

4 Operator

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13.6K Posts

February 9th, 2008 10:00

The instructions for XP are different from the Vista instructions I posted earlier in this thread. There are three different sets of instructions and they can all be found in the FAQ -- the 1st thread on this Audio board.

Two points
  • I don't know if the instructions will work with a Vostro 1000; can't remember anyone trying it with that model + XP.
  • The instructions reportedly will not work with the Sigmatel audio driver R171789   (v.5.10.0.5515) that was released in December. That is the driver that has stereo mix. To enable monitoring you must have an older driver installed, but in that case you not have stereo mix.




Models with Windows XP and a Sigmatel STAC 92xxHD Audio Chip


The following set of instructions is only for these and similar models with the Sigmatel 92xxHD audio chip running Windows XP :

B120, B130/1300, 6400/E1505, 9400/E1705, E1405/640m, XPS M140/630m, 1420, 1520, 1720

Latitude D420, D520, D620, D820, etc, and any others with the Sigmatel 92xx HD chip and Windows XP.


On these models running XP, monitoring can be restored by editing the Registry subkey EnableInputMonitor.

[It is wise to create a System Restore point before editing the Registry! To create a new Restore Point go to Start/Help & Support/System Restore and tick 'Create a restore point'. Even better is to save a backup copy of the Registry by using its 'Export' utility.]


1. Go to the Start menu and click on Run. Type 'regedit' without quotes and click OK to open the Registry.
2. At the top of the list, highlight My Computer.
3. Under the Edit menu, select Find.
4. Type in 'EnableInputMonitor' without quotes and click 'find next'.
5. Highlight EnableInputMonitor. Right click on it and select Modify.
6. Highlight 00 and change to 01. Click OK.
7. Repeat "find next" (F3) several more times and keep changing values to 01 until the "EnableInputMonitor"'s coming up are of the proper value.
8. Find a key named "EnableIntSpkrMute" and change its value from 01 to 00.
9. Exit the Registry and restart the computer.

Next, configure the system mixer:

1. Open Volume Control by right clicking on the speaker icon on the taskbar, or go to Start/Control Panel/ Sound & Audio Devices Properties/Advanced (button).
2. Under the Options menu, select Properties.
3.Under 'show the following volume controls' check the box next to Input Monitor. Click OK.
4. Make sure the mute box is unchecked. Unfortunately the slider itself will be frozen in place and won't control the outputted volume.


(Thanks to forum members emann15 and The Performing Flea for figuring this out. I have put it into this step-by-step format for those of us who are not familiar with editing the Registry). This is the direct Registry path to the key:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\
{4D36E96C-E325-11CE-BFC1-08002BE10318}\0005\Settings\filter\Rear


Jim

February 9th, 2008 22:00

Thank you so much it worked now i can record with this thing

May 15th, 2008 19:00

Hey,

 

Will this work on a vostro 1700?

 

greetings Eagles-nest

4 Operator

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13.6K Posts

May 16th, 2008 00:00

Sorry but I don't know. The instructions work with most models but you never know, particularly with Vista.

 

Jim 

5 Posts

September 9th, 2008 05:00

Tried both of those things posted but none got past \0000

 

This is how far i got.

 

*PIC*

 

http://img257.imageshack.us/my.php?image=regpicef0.png

 

Not sure what you can make out of it but i think a visual would be better then me trying to explain where im stuck at. Since i dont know where i went wrong.

 

 

4 Operator

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13.6K Posts

September 9th, 2008 11:00

The original poster in thgis thread got the instructions to work on a v1000 with Vista in August '07. The Vista audio driver current at that time was

 Sigmatel R153910,  v 6.10.0.5407,  released 7/11/2007.

 

Assuming you have Vista and the newest driver, try installing that older driver and see if it helps.

 

Jim 

5 Posts

September 9th, 2008 12:00

Maybe i should have said i have XP with a few Vista modificatons.

 

Sorry for the mixup i ment to add that but it was very early in the morning and i never got any sleep.

4 Operator

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13.6K Posts

September 10th, 2008 01:00

If it's XP then notice what I said earlier about the driver. The instructions will not work with the Sigmatel audio driver R171789  (v.5.10.0.5515) that was released in December '07. That is the driver that has stereo mix. To enable monitoring you must have an older driver installed (but I don't know of an older XP version for the v1000, try R122161), but in that case you not have stereo mix.

 

 

Jim 

5 Posts

September 10th, 2008 07:00

Well i went with realtek instead of this BS sigma junk since it's much easier and is probably just as good.

 

It's working well atm no harm done but it's still to early.

 

BTW thanks for taking the time and trying to help me means alot since i know nothing of this stuff. It's really just weird trying to do all this stuff....well for me it is.

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