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May 14th, 2007, 02:01 PM
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#1 |
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New Boot
Join Date: Mar 2007
Location: Beirut, Lebanon
Posts: 8
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Detecting Audio frame rate
How can I detect the frame rate of an audio file? I received a song as an mp3 and I plan on cutting footage (to be shot) on it. It is a music video so the visuals have to sync with the music track.
Thanks! |
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May 15th, 2007, 08:47 AM
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#2 |
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Inner Circle
Join Date: Aug 2005
Location: Atlanta/USA
Posts: 2,515
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Oliver, welcome to DVi.
I am not sure I understand your question - frame rate reffers to video and not audio. What do you exactly mean? |
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May 15th, 2007, 09:44 AM
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#3 | |
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New Boot
Join Date: Mar 2007
Location: Beirut, Lebanon
Posts: 8
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Quote:
well lets say you create a composition in after effect with 60fps as its frame sampling rate, your audio will play distorted, which means audio has a frame rate lower than that one. I tried it with a song I ripped off of a CD. It plays fine on 24fps even 25fps. When I jump to 30, it starts getting distorted. At 60fps, forget it. Thanks |
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May 15th, 2007, 11:12 AM
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#4 |
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Inner Circle
Join Date: Aug 2005
Location: Atlanta/USA
Posts: 2,515
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Again, frame rate cannot refer to audio - audio has no frames. Are you talking about sample rate? Your wording "video sampling rate" makes me think you don't have a clear understanding of video frame rate and audio sampling rate.
What you may be experiencing is inadequate audio sample rate - commercial audio CDs have a sample rate of 44.1KHz while video works with audio at 32KHz or 48KHz. But any decent NLE should convert the sample rate automatically when you import the audio clip - so I am still confused. When you start your project what template do you choose in your NLE? Can you elaborate on this "distorted" audio? What does it sound like? |
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