My audio stops working after Windows 7 has been running for a while; Ideas: the audio will work again after a re-boot but again, it will stop working after Windows has been running for a while. Re-bootig always fixes the problem but only for a few hours and then the audio is gone. audio problem Remember - This is a public forum so never post private information such as email or phone numbers!

Hi, Welcome to Microsoft answers forum. You can check for the sound drivers,whether they are installed correctly. if not uninstall them and install again. I suggest you to verify that the default sound device is set correctly Click Start,type Sound in the Start Search box. Click Sound in the search results at the top of the Start menu. Click the Playback tab. Notice the check mark next to the default device. For most users,the default device is Speakers. Make sure that your audio settings are configured as expected. Follow these steps: On the Playback tab, select the playback device, click Properties, click the Advanced tab, and make sure that the Default Format is set to the value that you expect. When you finish, close this window to return to the previous window. On the Playback tab, select the playback device, click Configure, and then make sure the configurations are set correctly. If the sound settings are set correctly, you are using speakers as the sound device, and your speakers are already set as the default device, go to method 5 now. Select the sound device that you want as the default sound device, and then click Set Default. Click OK to save your settings and to close the Sound dialog box. Determine whether you can now hear sound. If you can hear sound, the issue is resolved. If you cannot hear sound, try method 5. http://support.microsoft.com/kb/948481 you can also check performing clean boot. To perform a clean boot on a computer that is running Windows Vista, follow these steps: Click Start,type msconfig in the Start Search box, and then press ENTER. If you are prompted for an administrator password or for a confirmation, type the password, or click Continue. On the General tab, click Selective Startup. Under Selective Startup, click to clear the Load Startup Items check box. Click the Services tab, click to select the Hide All Microsoft Services check box, and then click Disable All. Click OK. When you are prompted, click Restart. After the computer starts, start the program and check whether the problem is resolved. http://support.microsoft.com/kb/929135 Thanks and Regards, Azam - Microsoft Support

same issue on totally unrelated hardware: mobo asus P5KC "pro" audio interface: TC electronics Studio Konnekt 48, connected in firewire. and a totally unrelated toshiba laptop.... Happens in WDM mode only, not when working in in ASIO. "randomly" happens after 3/4hrs playback usually happens when a system update or equivalent is run if sampling frequency is at something else than 44.1kHz audio falls back to it, causing severe dropouts as the unit is still in 88.2 / 96kHz. usually rerunning audio configuration & cycling sample rates restores sounds / stops glitches / restores sample frequencies issues.

I have a Asus P7P55 LX motherboard. I'm not sure what you mean by "inbox HD Audio class driver installed". In device manager I have:- ATI HDMI Audio (realtek 6.0.1.6034) Via High Def Audio (VIA 6.0.1.7400) does that help at all? Regards

Adding my specs to the pile in case it might help, with some additional info. System Information Time of this report: 3/7/2010, 19:26:29 Machine name: MAXWELL Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7600) (7600.win7_rtm.090713-1255) Language: English (Regional Setting: English) System Manufacturer: Gigabyte Technology Co., Ltd. System Model: EX58-UD3R BIOS: Award Modular BIOS v6.00PG Processor: Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz (8 CPUs), ~4.0GHz Memory: 6144MB RAM Available OS Memory: 6142MB RAM Page File: 2066MB used, 10216MB available Windows Dir: C:\Windows DirectX Version: DirectX 11 DX Setup Parameters: Not found User DPI Setting: Using System DPI System DPI Setting: 96 DPI (100 percent) DWM DPI Scaling: Disabled DxDiag Version: 6.01.7600.16385 32bit Unicode DxDiag Notes Display Tab 1: No problems found. Sound Tab 1: No problems found. Sound Tab 2: No problems found. Input Tab: No problems found. Sound Devices Description: Speakers (Creative SB X-Fi) Default Sound Playback: Yes Default Voice Playback: Yes Hardware ID: PCI\VEN_1102&DEV_000B&SUBSYS_00431102&REV_04 Manufacturer ID: 1 Product ID: 100 Type: WDM Driver Name: ctaud2k.sys Driver Version: 6.00.0001.1347 (English) Driver Attributes: Final Retail WHQL Logo'd: n/a Date and Size: 7/14/2009 04:53:54, 696984 bytes Other Files: Driver Provider: Creative HW Accel Level: Basic Cap Flags: 0xF1F Min/Max Sample Rate: 100, 200000 Static/Strm HW Mix Bufs: 1, 0 Static/Strm HW 3D Bufs: 0, 0 HW Memory: 0 Voice Management: No EAX(tm) 2.0 Listen/Src: No, No I3DL2(tm) Listen/Src: No, No Sensaura(tm) ZoomFX(tm): No Description: SPDIF Out (Creative SB X-Fi) Default Sound Playback: No Default Voice Playback: No Hardware ID: PCI\VEN_1102&DEV_000B&SUBSYS_00431102&REV_04 Manufacturer ID: 1 Product ID: 100 Type: WDM Driver Name: ctaud2k.sys Driver Version: 6.00.0001.1347 (English) Driver Attributes: Final Retail WHQL Logo'd: n/a Date and Size: 7/14/2009 04:53:54, 696984 bytes Other Files: Driver Provider: Creative HW Accel Level: Basic Cap Flags: 0xF1F Min/Max Sample Rate: 100, 200000 Static/Strm HW Mix Bufs: 1, 0 Static/Strm HW 3D Bufs: 0, 0 HW Memory: 0 Voice Management: No EAX(tm) 2.0 Listen/Src: No, No I3DL2(tm) Listen/Src: No, No Sensaura(tm) ZoomFX(tm): No Sound Capture Devices Description: Microphone (Microsoft LifeCam VX-3000.) Default Sound Capture: Yes Default Voice Capture: Yes Driver Name: USBAUDIO.sys Driver Version: 6.01.7600.16385 (English) Driver Attributes: Final Retail Date and Size: 7/13/2009 20:06:32, 109568 bytes Cap Flags: 0x1 Format Flags: 0xFFFFF Description: Digital-In (Creative SB X-Fi) Default Sound Capture: No Default Voice Capture: No Driver Name: ctaud2k.sys Driver Version: 6.00.0001.1347 (English) Driver Attributes: Final Retail Date and Size: 7/14/2009 04:53:54, 696984 bytes Cap Flags: 0x1 Format Flags: 0xFFFFF Description: "What U Hear" (Creative SB X-Fi) Default Sound Capture: No Default Voice Capture: No Driver Name: ctaud2k.sys Driver Version: 6.00.0001.1347 (English) Driver Attributes: Final Retail Date and Size: 7/14/2009 04:53:54, 696984 bytes Cap Flags: 0x1 Format Flags: 0xFFFFF I have the latest Creative drivers properly installed. The problem occurs both with these drivers and when I roll back to previous drivers. My symptoms are the same as others; the timing appears random and may happen during a game, while listening to itunes, while idle, or on startup on rare occasions. If I go to playback devices it will show the volume level on my speakers pulsing up and down, indicating to me that it should be working, but nothing comes out of the speakers. On startup after restarting to correct the problem, if the speakers are left on at startup they will "pop" quite loudly when windows starts. As one other member mentioned, itunes seems to realize that something is wrong and is reluctant to start playing a song, and does not seem to progress properly when started. Frequently if I attempt to continue use of the computer without restarting it will go unresponsive; I will be able to move my mouse but not effect anything with mouse or keyboard. Shortly thereafter the mouse pointer will freeze as well, necessitating a hard restart. I run Bitdefender but am currently scanning with Malwarebytes on your advice.

I have the same problem at my office. We have mostly XP computers, but we have a few Win7 Enterprise Computers. A couple of them will just lose audio after a random period of time and we will have to reboot. They have the latest drivers for the audio cards in the laptops, but we are using Logitech USB headsets, so I think that they do not use the onboard audio card? Would they use some other driver then? There are no drivers from Logitech for them, so is it some internal Win7 driver that is used for a USB headset?

Audio stops working but works after a reboot

Anonymous

My audio stops working after Windows 7 has been running for a while;

Ideas:

the audio will work again after a re-boot but again, it will stop working after Windows has been running for a while. Re-bootig always fixes the problem but only for a few hours and then the audio is gone. audio problem

Remember - This is a public forum so never post private information such as email or phone numbers!

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments

Answer accepted by question author

Anonymous

Hi,

Welcome to Microsoft answers forum.

You can check for the sound drivers,whether they are installed correctly.

if not uninstall them and install again.

I suggest you to verify that the default sound device is set correctly

Click Start,type Sound in the Start Search box.
Click Sound in the search results at the top of the Start menu.
Click the Playback tab. Notice the check mark next to the default device. For most users,the default device is Speakers.

Make sure that your audio settings are configured as expected. Follow these steps:

On the Playback tab, select the playback device, click Properties, click the Advanced tab, and make sure that the Default Format is set to the value that you expect.

When you finish, close this window to return to the previous window.

On the Playback tab, select the playback device, click Configure, and then make sure the configurations are set correctly.
If the sound settings are set correctly, you are using speakers as the sound device, and your speakers are already set as the default device, go to method 5 now.
Select the sound device that you want as the default sound device, and then click Set Default.
Click OK to save your settings and to close the Sound dialog box.

Determine whether you can now hear sound. If you can hear sound, the issue is resolved. If you cannot hear sound, try method 5.

http://support.microsoft.com/kb/948481

you can also check performing clean boot.

To perform a clean boot on a computer that is running Windows Vista, follow these steps:

Click Start,type msconfig in the Start Search box, and then press ENTER.

If you are prompted for an administrator password or for a confirmation, type the password, or click Continue.

On the General tab, click Selective Startup.
Under Selective Startup, click to clear the Load Startup Items check box.
Click the Services tab, click to select the Hide All Microsoft Services check box, and then click Disable All.
Click OK.

When you are prompted, click Restart.

After the computer starts, start the program and check whether the problem is resolved.

http://support.microsoft.com/kb/929135

Thanks and Regards,

Azam - Microsoft Support

0 comments

150 additional answers

Anonymous

2010-03-13T12:38:08+00:00
same issue on totally unrelated hardware:

mobo asus P5KC

"pro" audio interface: TC electronics Studio Konnekt 48, connected in firewire.

and a totally unrelated toshiba laptop....

Happens in WDM mode only, not when working in in ASIO.
- "randomly" happens after 3/4hrs playback
- usually happens when a system update or equivalent is run
- if sampling frequency is at something else than 44.1kHz audio falls back to it, causing severe dropouts as the unit is still in 88.2 / 96kHz.
- usually rerunning audio configuration & cycling sample rates restores sounds / stops glitches / restores sample frequencies issues.
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Anonymous

2010-03-10T03:39:30+00:00

I have a Asus P7P55 LX motherboard. I'm not sure what you mean by "inbox HD Audio class driver installed".

In device manager I have:-

ATI HDMI Audio (realtek 6.0.1.6034)

Via High Def Audio (VIA 6.0.1.7400)

does that help at all?

Regards
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Anonymous

2010-03-07T23:39:04+00:00

Adding my specs to the pile in case it might help, with some additional info.

System Information

Time of this report: 3/7/2010, 19:26:29

       Machine name: MAXWELL

   Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7600) (7600.win7_rtm.090713-1255)

           Language: English (Regional Setting: English)

System Manufacturer: Gigabyte Technology Co., Ltd.

       System Model: EX58-UD3R

               BIOS: Award Modular BIOS v6.00PG

          Processor: Intel(R) Core(TM) i7 CPU         920 @ 2.67GHz (8 CPUs), ~4.0GHz

             Memory: 6144MB RAM

Available OS Memory: 6142MB RAM

          Page File: 2066MB used, 10216MB available

        Windows Dir: C:\Windows

    DirectX Version: DirectX 11

DX Setup Parameters: Not found

   User DPI Setting: Using System DPI

System DPI Setting: 96 DPI (100 percent)

    DWM DPI Scaling: Disabled

     DxDiag Version: 6.01.7600.16385 32bit Unicode

DxDiag Notes

      Display Tab 1: No problems found.

        Sound Tab 1: No problems found.

        Sound Tab 2: No problems found.

          Input Tab: No problems found.

Sound Devices

            Description: Speakers (Creative SB X-Fi)

Default Sound Playback: Yes

Default Voice Playback: Yes

            Hardware ID: PCI\VEN_1102&DEV_000B&SUBSYS_00431102&REV_04

        Manufacturer ID: 1

             Product ID: 100

                   Type: WDM

            Driver Name: ctaud2k.sys

         Driver Version: 6.00.0001.1347 (English)

      Driver Attributes: Final Retail

            WHQL Logo'd: n/a

          Date and Size: 7/14/2009 04:53:54, 696984 bytes

            Other Files:

        Driver Provider: Creative

         HW Accel Level: Basic

              Cap Flags: 0xF1F

    Min/Max Sample Rate: 100, 200000

Static/Strm HW Mix Bufs: 1, 0

Static/Strm HW 3D Bufs: 0, 0

              HW Memory: 0

       Voice Management: No

EAX(tm) 2.0 Listen/Src: No, No

   I3DL2(tm) Listen/Src: No, No

Sensaura(tm) ZoomFX(tm): No

            Description: SPDIF Out (Creative SB X-Fi)

Default Sound Playback: No

Default Voice Playback: No

            Hardware ID: PCI\VEN_1102&DEV_000B&SUBSYS_00431102&REV_04

        Manufacturer ID: 1

             Product ID: 100

                   Type: WDM

            Driver Name: ctaud2k.sys

         Driver Version: 6.00.0001.1347 (English)

      Driver Attributes: Final Retail

            WHQL Logo'd: n/a

          Date and Size: 7/14/2009 04:53:54, 696984 bytes

            Other Files:

        Driver Provider: Creative

         HW Accel Level: Basic

              Cap Flags: 0xF1F

    Min/Max Sample Rate: 100, 200000

Static/Strm HW Mix Bufs: 1, 0

Static/Strm HW 3D Bufs: 0, 0

              HW Memory: 0

       Voice Management: No

EAX(tm) 2.0 Listen/Src: No, No

   I3DL2(tm) Listen/Src: No, No

Sensaura(tm) ZoomFX(tm): No

Sound Capture Devices

            Description: Microphone (Microsoft LifeCam VX-3000.)

Default Sound Capture: Yes

Default Voice Capture: Yes

            Driver Name: USBAUDIO.sys

         Driver Version: 6.01.7600.16385 (English)

      Driver Attributes: Final Retail

          Date and Size: 7/13/2009 20:06:32, 109568 bytes

              Cap Flags: 0x1

           Format Flags: 0xFFFFF

            Description: Digital-In (Creative SB X-Fi)

Default Sound Capture: No

Default Voice Capture: No

            Driver Name: ctaud2k.sys

         Driver Version: 6.00.0001.1347 (English)

      Driver Attributes: Final Retail

          Date and Size: 7/14/2009 04:53:54, 696984 bytes

              Cap Flags: 0x1

           Format Flags: 0xFFFFF

            Description: "What U Hear" (Creative SB X-Fi)

Default Sound Capture: No

Default Voice Capture: No

            Driver Name: ctaud2k.sys

         Driver Version: 6.00.0001.1347 (English)

      Driver Attributes: Final Retail

          Date and Size: 7/14/2009 04:53:54, 696984 bytes

              Cap Flags: 0x1

           Format Flags: 0xFFFFF

I have the latest Creative drivers properly installed. The problem occurs both with these drivers and when I roll back to previous drivers.

My symptoms are the same as others; the timing appears random and may happen during a game, while listening to itunes, while idle, or on startup on rare occasions.

If I go to playback devices it will show the volume level on my speakers pulsing up and down, indicating to me that it should be working, but nothing comes out of the speakers.

On startup after restarting to correct the problem, if the speakers are left on at startup they will "pop" quite loudly when windows starts.

As one other member mentioned, itunes seems to realize that something is wrong and is reluctant to start playing a song, and does not seem to progress properly when started.

Frequently if I attempt to continue use of the computer without restarting it will go unresponsive; I will be able to move my mouse but not effect anything with mouse or keyboard. Shortly thereafter the mouse pointer will freeze as well, necessitating a hard restart.

I run Bitdefender but am currently scanning with Malwarebytes on your advice.
Was this answer helpful?

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Anonymous

2010-03-04T21:09:41+00:00

I have the same problem at my office. We have mostly XP computers, but we have a few Win7 Enterprise Computers. A couple of them will just lose audio after a random period of time and we will have to reboot. They have the latest drivers for the audio cards in the laptops, but we are using Logitech USB headsets, so I think that they do not use the onboard audio card? Would they use some other driver then? There are no drivers from Logitech for them, so is it some internal Win7 driver that is used for a USB headset?
Was this answer helpful?

0 comments No comments