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Okay, here's an odd one for you.
What I'm trying to do is create an Xbox Live gameplay video, with the voice chat overlaid on top.
I have recorded the gameplay, and because of the limitations of the Xbox 360, the gameplay video has my team's speech (what they say to me) on it, but not my speech (what I say to them).
I set up a dual mic system so that my speech was recorded as a wave file to my PC.
Using VirtualDub, I ripped the audio from the gameplay video also to wave format.
Now I'm trying to create one audio file in Audacity, which contains both my speech and my team's speech. The problem I'm getting is that the sync between what is said does not match up. For example, as you listen to the merged file I am answering questions before my friend has even asked them.
Despite being recordings of exactly the same session, started and ended at the same time, the length of my speech file seems 'compressed'. This gets worse as time goes on, with larger gaps appearing between answer and question (and it's always that way around) later in the recording.
Here are the details of the recordings (They're both 2 channel stereo PCM audio .wav files):
- Team's Speech file: 2h12m52s long, 1.42GB in size, 48000Hz sampling rate, bitrate of 1536kbps.
- My Speech file: 2h08m29s long, 1.26GB in size, 44100Hz sampling rate, bitrate of 1411kbps
I know these are fairly big files, but my machine is more than capable of handling the processing (see sig for spec). If you look, there's a gigantic difference in length of 4 minutes and 23 seconds between the two files, why could this be? Like I said, I started and ended both recordings at pretty much the exact same time (give or take a second or two).
Could it be the fault of the sampling rate? I don't know a lot about audio, but doesn't that affect the speed of the recording or something? I tried using Audacity to save the shorter file in 48000Khz but it didn't change anything at all.
Any help you guys can give me would be most appreciated. I'm really not too intelligent on audio stuff!
What I'm trying to do is create an Xbox Live gameplay video, with the voice chat overlaid on top.
I have recorded the gameplay, and because of the limitations of the Xbox 360, the gameplay video has my team's speech (what they say to me) on it, but not my speech (what I say to them).
I set up a dual mic system so that my speech was recorded as a wave file to my PC.
Using VirtualDub, I ripped the audio from the gameplay video also to wave format.
Now I'm trying to create one audio file in Audacity, which contains both my speech and my team's speech. The problem I'm getting is that the sync between what is said does not match up. For example, as you listen to the merged file I am answering questions before my friend has even asked them.
Despite being recordings of exactly the same session, started and ended at the same time, the length of my speech file seems 'compressed'. This gets worse as time goes on, with larger gaps appearing between answer and question (and it's always that way around) later in the recording.
Here are the details of the recordings (They're both 2 channel stereo PCM audio .wav files):
- Team's Speech file: 2h12m52s long, 1.42GB in size, 48000Hz sampling rate, bitrate of 1536kbps.
- My Speech file: 2h08m29s long, 1.26GB in size, 44100Hz sampling rate, bitrate of 1411kbps
I know these are fairly big files, but my machine is more than capable of handling the processing (see sig for spec). If you look, there's a gigantic difference in length of 4 minutes and 23 seconds between the two files, why could this be? Like I said, I started and ended both recordings at pretty much the exact same time (give or take a second or two).
Could it be the fault of the sampling rate? I don't know a lot about audio, but doesn't that affect the speed of the recording or something? I tried using Audacity to save the shorter file in 48000Khz but it didn't change anything at all.
Any help you guys can give me would be most appreciated. I'm really not too intelligent on audio stuff!
