A typical sound problem that most Windows users face at one point or the other is that Flash based content fail to playback the sound attached to them. Thus, when you are running a video on Youtube, Dailymotion, Google Video CNet Videos and other Adobe Flash based video sharing sites, the video runs perfectly but there is no sound.
The second symptomatic aspect of this problem is that only the Flash audio is affected – all of the other Windows sounds and audio, including music files (such as mp3, wma, etc.) work just fine. This happens for almost all browsers – including IE5, IE7, and Firefox – and across all Windows versions – including XP, 2000, and even Vista. Unless you downgrade to Adobe flash Player 7, this problem persists – especially in Adobe Flash Players 8 and 9.
To resolve this problem of no sound being played in Flash based content, you can simply download the FixNoFlashSound.reg registry file, (you’ll have to save the file in a place where you can find it easily) and install it. For this, you have to double click on the downloaded file, and ‘confirm’ the pop-up dialog to merge these new values to the existing registry.
Note: Before you download the FixNoFlashSound.reg , I recommend that you check if the wavemapper – msacm32.drv – no flash audio problem is fixed.
If, for some reason, you can’t download the FixNoFlashSound.reg file, then simple copy and paste the following text into a bank notepad file and save it with a .reg extension. (Double-clicking on this file that you have created should have the same results.)
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32]
“midimapper”=”midimap.dll”
“msacm.imaadpcm”=”imaadp32.acm”
“msacm.msadpcm”=”msadp32.acm”
“msacm.msg711″=”msg711.acm”
“msacm.msgsm610″=”msgsm32.acm”
“msacm.trspch”=”tssoft32.acm”
“vidc.cvid”=”iccvid.dll”
“VIDC.I420″=”i420vfw.dll”
“vidc.iv31″=”ir32_32.dll”
“vidc.iv32″=”ir32_32.dll”
“vidc.iv41″=”ir41_32.ax”
“VIDC.IYUV”=”iyuv_32.dll”
“vidc.mrle”=”msrle32.dll”
“vidc.msvc”=”msvidc32.dll”
“VIDC.YVYU”=”msyuv.dll”
“wavemapper”=”msacm32.drv”
“msacm.msg723″=”msg723.acm”
“vidc.M263″=”msh263.drv”
“vidc.M261″=”msh261.drv”
“msacm.msaudio1″=”msaud32.acm”
“msacm.sl_anet”=”sl_anet.acm”
“msacm.iac2″=”C:\\WINDOWS\\system32\\iac25_32.ax”
“vidc.iv50″=”ir50_32.dll”
“wave”=”wdmaud.drv”
“midi”=”wdmaud.drv”
“mixer”=”wdmaud.drv”
“VIDC.WMV3″=”wmv9vcm.dll”
“VIDC.VP40″=”vp4vfw.dll”
“msacm.voxacm160″=”vct3216.acm”
“MSVideo”=”vfwwdm32.dll”
“MSVideo8″=”VfWWDM32.dll”
“wave1″=”wdmaud.drv”
“midi1″=”wdmaud.drv”
“mixer1″=”wdmaud.drv”
“aux”=”wdmaud.drv”
“vidc.VP70″=”vp7vfw.dll”
“vidc.X264″=”x264vfw.dll”
“VIDC.FPS1″=”frapsvid.dll”
“vidc.VP60″=”vp6vfw.dll”
“vidc.VP61″=”vp6vfw.dll”
“vidc.VP62″=”vp6vfw.dll”
“vidc.DIVX”=”DivX.dll”
“VIDC.UYVY”=”msyuv.dll”
“VIDC.YUY2″=”msyuv.dll”
“VIDC.YVU9″=”tsbyuv.dll”
“VIDC.DRAW”=”DVIDEO.DLL”
“VIDC.YV12″=”yv12vfw.dll”
“wave2″=”wdmaud.drv”
“midi2″=”wdmaud.drv”
“mixer2″=”wdmaud.drv”
“aux1″=”wdmaud.drv”
“wave3″=”wdmaud.drv”
“midi3″=”wdmaud.drv”
“mixer3″=”wdmaud.drv”
“aux2″=”wdmaud.drv”
“VIDC.MSUD”=”msulvc05.dll”
“wave4″=”wdmaud.drv”
“midi4″=”wdmaud.drv”
“mixer4″=”wdmaud.drv”
“aux3″=”wdmaud.drv”
Your sound problem should be fixed after this. If it is not, you should try other solutions – such as the Klite Codec solution, the .acm file missing problem, etc.