Hi I was wondering if someone more clued up on audio problems might be able to offer some advice.
I have some Desktop software that allows you to record from several audio and video streams at the same time, if it's of any use it's built with Flash and Java. For example I could select the mic from a USB webcam, the microphone plugged into the mic port (the option you select for this is the name of the machines soundcard), a video stream from a USB webcam... and on most computers it works and syncs absolutely fine.
The problem is with two Dell Insiron Laptops purchased within the last 2 months. Playing back recordings shows that the audio stream recorded from the mic plugged into the microphone port lags behind all the other video and audio streams. After 3 minutes it will be around 10 seconds behind, 6 minutes: 20 seconds behind, 13 minutes: 40 sconds behind...
I've done a whole range of testing on 2 Macs and 5 different PCs testing with different microphones, operating systems, combinations of audio and video streams, re-installing Windows and it only happens on the 2 Dell machines which is why I think it maybe a system issue rather than a software issue.
The 2 Dell machines both have the same soundcard: Sigma Tel Audio but have different processors, RAM, hard discs.
Does anyone have some advice as to what the problem could be? Thanks
I have some Desktop software that allows you to record from several audio and video streams at the same time, if it's of any use it's built with Flash and Java. For example I could select the mic from a USB webcam, the microphone plugged into the mic port (the option you select for this is the name of the machines soundcard), a video stream from a USB webcam... and on most computers it works and syncs absolutely fine.
The problem is with two Dell Insiron Laptops purchased within the last 2 months. Playing back recordings shows that the audio stream recorded from the mic plugged into the microphone port lags behind all the other video and audio streams. After 3 minutes it will be around 10 seconds behind, 6 minutes: 20 seconds behind, 13 minutes: 40 sconds behind...
I've done a whole range of testing on 2 Macs and 5 different PCs testing with different microphones, operating systems, combinations of audio and video streams, re-installing Windows and it only happens on the 2 Dell machines which is why I think it maybe a system issue rather than a software issue.
The 2 Dell machines both have the same soundcard: Sigma Tel Audio but have different processors, RAM, hard discs.
Does anyone have some advice as to what the problem could be? Thanks