NO audio with .AVI with QuickTime 7.5

*A few suggestions:*

If you have not done so after installing Perian - Repair permissions & restart.







http://docs.info.apple.com/article.html?artnum=300832 Mac OS X: No audio from certain multimedia content

Trick/Tip: Open up GarageBand if installed then, open a program (optional).
Quit out of the GarageBand app.





Install VLC Media Player, repair permissions & restart.

I have the same problem!

20 minutes ago, as recommended by Apple, I installed the most recent QuickTime upgrade and i have subsequently lost my audio. The audio was working fine before i upgraded.

Does anyone know if trying to revert back to the older version of QuickTime solves the problem?

"I haven't installed the VLC Media Player. Will installing this retrieve audio in my videos?"

The only way to know is to install it & try it out. If it doesn't work, just uninstall it. You really have nothing to lose. You already lost your audio.

i had the same problem. Have you tried changing the setting on Perian from Dolby Digital to Stereo? Try doing that and then restarting. It helped me solve my problem. cheers

I do not know why ppl are telling to install VCL mediaplayer. Cause that player is a standalone. It will not influence the behaviour of quicktime.

However you can play the files in vcl but not in quicktime. so the problem remains with vcl on your computer as before.

The only other suggestion to suggest:

Open the file with QuickTime Player.
Open the Movie Info window (Command-i).
Note the name of the video codec used in the file.
Do a Google.com search for codec name +Mac and download one appropriate for your OS and computer.
Quit and relaunch QuickTime after installing the new codec.
Try the file again.

"I do not know why ppl are telling to install VCL mediaplayer."

Because VLC plays 99.9% of all the .avi files out there now. QT plays very limited .avi files on its own. QT use to play all .avi files back +in da day+ during the v6 & earlier days.

And, yes you are correct in stating that VLC is a standalone player.

The same with me!

It is very annoying installing an upgrade of which you trust to be tested sufficiently and what happens: lots of users cannot use the QT anymore. I have checked now a lot of forums and sites and no one has been able to give the right solution. This problem is due to the upgrade from Apple.

Do you know how to revert back to the older version of QT or at least how to get rid of the upgrade?

Thanks,
Xbal

Considering the huge user base for Quicktime and the fact that only a few dozen users have posted here, the problems described in these forums do not appear to be confined to users of either Leopard or Tiger, or either PPC or Intel Macs, but relatively speaking they are few and far between. I have had no problems at all after installing QT 7.5.

it is therefore reasonable to assume that something in either your pre-existing setup or your method of installing updates, are the root causes of whatever problems you are having with QT 7.5 particularly with choppy playback or missing audio. Out of date plug-ins and add-ons could also be playing a part.

A few things to try but in each case first close all applications and repair permissions.

1 Try opening then closing GarageBand, or launching then quitting the "Audio MIDI Setup" application located in Applications/Utilities. Failing that, go back to Audio MIDI Setup, and under the Audio Devices tab, make sure the Audio Output Format is 44100.0 2ch-16bit.

Restart your Mac.

2 Go to the Library on your main hard disk and find the Internet Plug-Ins folder. Try removing the following files:

QuickTime plugin.plugin
Quicktime plugin.webplugin

Restart your Mac.

Re-install the Quicktime 7.5 update

Go to Home/Library/Receipts and delete the file Quicktime 7.5 pkg.

Download from the Download page on the Apple site the correct version of Quicktime 7.5 for your Mac.

Install it and restart your Mac. Repair permissions.

3 If still no luck, it is time to look carefully at your plug-ins and add-ons. The safest way is to download and re-install all of them. The ones you need in order to see and hear virtually everything the web has to offer are:

RealPlayer 11 (which is no longer in beta) for Mac from (you may need a different site for the US):

http://uk.real.com/player/mac/

Flip4Mac WMV Player from http://www.microsoft.com/windows/windowsmedia/player/wmcomponents.mspx (Windows Media Player for the Mac is no longer supported, even by Microsoft)

Perian from http://perian.org/

You should read this support page http://perian.org/#support in case you need to delete older codecs.

Adobe FlashPlayer should first be uninstalled using the appropriate uninstaller available here: http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_14157&sliceId=2 and then the latest version obtained from here: http://www.adobe.com/shockwave/download/download.cgi?P1ProdVersion=ShockwaveFlash and installed.

(You can check here: http://www.adobe.com/products/flash/about/ to see which version you should install for your Mac and OS.)


You should also ensure that you have downloaded and installed all the correct version for your Mac of all recent Security Updates.
(N.B. Security Updates require both a restart and a permission repair.)

In Macintosh HD/Library/Quicktime/ delete any files relating to DivX (Perian already has them). However it should be noted that Perian is not an internet plugin and will not play DivX files imbedded on a website. For that you will need the DivX Player browser plugin available from http://www.divx.com/divx/mac/

Now go to Safari Preferences/Security, and tick the boxes under Web Content (all 4 of them) to enable Java.

Lastly open Audio Midi Setup (which you will find in the Utilities Folder of your Applications Folder) and click on Audio Devices. Make sure that both Audio Input and Audio Output, under Format, are set to 44100 Hz, and that you have selected 'Built in Audio'.

Important: Now repair permissions and restart.

There is an additional 'fix' you could try if you are having problems with Flash and Quicktime, depending on which type of Mac you have:

On Intel Macs, make sure that you are not running Safari in Rosetta. You can check this, and change it, in the Get Info window.

On PPC Macs, go to the Hard Disk/Library/Internet Plug-Ins folder, and drag the file 'QuickTime Plugin.webplugin' to the desktop. Quit and restart Safari. If things have improved you can trash that file. If they haven't put it back, as the lack of this plug-in can cause QT content in some widgets to cease functioning.

If none of the foregoing worked, then you should consider and archive and install before repeating all of the above.

I have found a number of related posts on this subject (google: no audio quicktime 7.5). I tried 4 differnet macs.

The intel mac-mini plays AVI files with no audio; it has quicktime plugins installed for divx, flip4wmv, and perian; vlc doesn't play audio either. Tried everything suggested but nothing worked; even tried going back to 7.4 (found another post); nada.

A white iMac (intel, tiger) has no plugins; it tells me I need to install a plugin to play the AVI file (same file as mac-mini).

The 24" iMac (intel, leopard) plays the AVI just fine, audio and all; note: it has Logic Express 8.0.2 on it.

The old ppc mac-mini plays the AVI with no audio; it has the divx and an xvid plugin installed.

"Format: Apple OpenDML JPEG"

Are you sure it's an .avi file you clicked on? JPEG is a photo file.