No audio when recording from DV camera source using QuickTime pro
I am having a problem when trying to use quicktime pro to record/transcode from DV tapes, using the camera playback as the source. The problem is that the audio from the tape is not showing up in the recorded quicktime movie. Sometimes the audio is present, but it is rare and not repeatable. When I look at the movie properties, it shows an audio track, but no sound comes out when being played back.
My procedure is generally File-->New Recording. Then start the camera playing and as soon as the video starts playing press the record button. Sometimes I try changing the order, press record first then start the camera playing but it doesn't seem to make a difference. The recording format is "Better".
If I use iMovie to import from the camera it works great - the audio always comes through.
The reason for using Quicktime pro is to try to save a transcoding step. This is being used on a set of computers in a university lab and the students have recordings they need to take off the DV tapes and make into a quicktime movie. In the past the iMovie-->export to QuickTime procedure was used but it takes much longer to do that.
The machines are G4 iBooks, 1.33 GHz with 512 RAM. OS X 10.4.11.
This procedure has worked relatively well in the past, for at least a couple of semesters, but now it seems to no longer work as expected. It is possible that the IT dept reimaged these machines and that the version of QT has been updated. I am not in control of the machines. If this had always been the behavior since the beginning then I would suspect that these machines are just not powerful enough to be used in this way, but the fact that they worked in the past makes me wonder what has gone wrong.
I appreciate any ideas or suggestions.
My procedure is generally File-->New Recording. Then start the camera playing and as soon as the video starts playing press the record button. Sometimes I try changing the order, press record first then start the camera playing but it doesn't seem to make a difference. The recording format is "Better".
If I use iMovie to import from the camera it works great - the audio always comes through.
The reason for using Quicktime pro is to try to save a transcoding step. This is being used on a set of computers in a university lab and the students have recordings they need to take off the DV tapes and make into a quicktime movie. In the past the iMovie-->export to QuickTime procedure was used but it takes much longer to do that.
The machines are G4 iBooks, 1.33 GHz with 512 RAM. OS X 10.4.11.
This procedure has worked relatively well in the past, for at least a couple of semesters, but now it seems to no longer work as expected. It is possible that the IT dept reimaged these machines and that the version of QT has been updated. I am not in control of the machines. If this had always been the behavior since the beginning then I would suspect that these machines are just not powerful enough to be used in this way, but the fact that they worked in the past makes me wonder what has gone wrong.
I appreciate any ideas or suggestions.
iMac 2.4G Intel, Mac OS X (10.5.6)
