Wednesday, November 30, 2011

Use Extermal Microphones with iMovie 11 to Make Your Video Better

If your movie sounds great it will make your screen images look even better 

There's one element that makes it obvious you're watching an amateur movie as opposed to a professional one: the audio. Although nearly all camcorders or video recording devices capture sound as well as images, the quality is often very poor. Even HD camcorders that produce vibrant, high-quality clips are often let down by the low quality of the on-board mic.


It's a well-known fact that audio is crucial to the appreciation of your film. Poor sound makes your audience feel that the video was actually of poorer quality than it actually is. Good-quality audio enhances the whole experience. So get yourself a device whose sole purpose is recording sound and you will greatly increase your production value for very little money indeed.

Small recorder 

 

Take the Samson Zoom H1, for instance. It's a tiny audio recording device that records very high-quality sound in stereo. You can choose various formats, but since we're going for quality, you should select an uncompressed one: WAV. This means that the files will take up more space, but this is a small price to pay for higher quality.

If you're going to go for this device (which is available via www.amazon.co.uk) make sure you also budget for its Accessory Pack, which includes a tripod and a windscreen foam cover, designed to cut out unwanted sound (which often gets captured, especially when shooting outdoors). In total, this should cost you something in the region of £100.

If your camcorder is capable of taking in audio input – with a line in stereo jack, for instance – then you could connect it to your microphone. That way you wouldn't have to worry about syncing the sound with the video later on in the editing process. But having an external mic can offer you advantages that those tethered to the camera cannot match: you could have a long shot and still hear the people you're recording perfectly because the mic is hidden near them and a long cable would be hard to conceal from view.

So if you've got your audio and video on separate files on your Mac, how do you go about connecting them together? This can be a little difficult to achieve in iMovie but it can work.

First of all, you need a clear point of reference to achieve the sync. This is where clapperboards come in, but why purchase one when a couple of hands clapping will work just as well? As long as your clap can be seen on screen and heard on the audio track, then you can add a marker on your project when the clap happens (markers are one of iMovie's many hidden advanced tools that you can reveal from the Preferences window).

Toggle the waveforms for your audio tracks to see the spike that represents the clap, and move it until that spike is under the marker. Mute the original audio and play your footage back. Drag the audio left or right until the sync is perfect. Once you've achieved this, you might not use your camcorder's built-in microphone ever again.

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