Video but no audio in MOV file - Printable Version
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Video but no audio in MOV file by alegator on 01-18-2008 at 04:08 PM
Hi, I downloaded the "Large" guided tour for the MacBook Air from the Apple website:
http://movies.apple.com/movies/us/apple/mac/macbookair/2008/apple ... 48x528.zip
It's a 184MB MOV file. When I try to play it with Quicktime Player it shows video but no audio. Just to discard problems with my Quicktime Player I upgraded to the latest version (v7.4 with latest updates) and downloaded other MOV files to test and it plays them fine with both audio and video, so the problem seems to be with this file alone. Mediainfo shows the details attached below for the file. Anyone can provide a clue as to what's causing this? Thanks.
General #0
Complete name : C:\Documents and Settings\Dell\Desktop\apple_macbookair_guidedtour_20080115_848x528.mov
Format : QuickTime
Format/Info : Quictime movie
Format/Family : MPEG-4
File size : 185 MiB
PlayTime : 7mn 51s
Bit rate : 3282 Kbps
StreamSize : 262 KiB
Movie name : Apple - MacBook Air
Movie name/More : www.apple.com
Encoded date : UTC 2008-01-16 00:07:33
Tagged date : UTC 2008-01-16 00:07:45
Copyright : © 2008 Apple, Inc. All Rights Reserved
Comment : Encoded and delivered by apple.com
Video #0
Codec : H.264
Codec/Info : H.264 (3GPP)
PlayTime : 7mn 51s
Bit rate : 3230 Kbps
Width : 848 pixels
Height : 528 pixels
Aspect ratio : 1.606
Frame rate : 23.976 fps
Bits/(Pixel*Frame) : 0.295
StreamSize : 182 MiB
Encoded date : UTC 2008-01-15 21:44:06
Tagged date : UTC 2008-01-16 00:07:45
Audio #0
Codec : AAC LC
Codec/Info : AAC Low Complexity
PlayTime : 7mn 51s
Bit rate : 48 Kbps
Bit rate mode : CBR
Channel(s) : 2 channels
Sampling rate : 32 KHz
Resolution : 16 bits
StreamSize : 2.70 MiB
Encoded date : UTC 2008-01-15 21:44:06
Tagged date : UTC 2008-01-16 00:07:45
RE: Video but no audio in MOV file by Spunky on 01-18-2008 at 05:02 PM
Are your speakers on/working? Sounds stupid but...
Also, are you sure it HAS sound? It may have been removed if not nessacerry to reduce file size and bandwidth
RE: RE: Video but no audio in MOV file by alegator on 01-18-2008 at 05:29 PM
quote:
Originally posted by SpunkyLoveMuff
Are your speakers on/working? Sounds stupid but...
Also, are you sure it HAS sound? It may have been removed if not nessacerry to reduce file size and bandwidth
Yes, my speakers/audio hardware,drivers, etc all fine. And yes, it does have sound as evidences by the Mediainfo log. If you download it yourself you'll realize it's a product presentation with sound.
RE: Video but no audio in MOV file by andrewdodd13 on 01-18-2008 at 09:59 PM
Try using another program (such as VLC to play the movie. It may not work - I don't remember off hand if VLC has QT Mov support.
Also, just try checking whether QuickTime plays audio for any other file. Could just be it's crappy. 
RE: Video but no audio in MOV file by user13774 on 01-18-2008 at 10:10 PM
How about Quicktime Player (or Windows?) audio/volume settings?
RE: Video but no audio in MOV file by TheSteve on 01-19-2008 at 01:39 AM
Perhaps you don't have the AAC LC codec installed. If you don't have this, the sound won't work.
RE: Video but no audio in MOV file by Spunky on 01-19-2008 at 02:02 AM
quote:
Originally posted by andrewdodd13
I don't remember off hand if VLC has QT Mov support.
Yes, it does
