Consumer Video Tips

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Posts Tagged ‘audio

Do You Want Better Audio on Your Canon 5D MK II?

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I’ve already written here about the Rode Video Mic. But what if you already have a pro mic? Can you hook it up to the 5D MK II? Yes. If it’s a self-powered mic, meaning it has a battery inside (usually a 9V) then you can get away with nothing more than a Pearstone LMT100 – Low to High Impedance Matching Transformer. These are under $20 and have an XLR connector on one end and a mini-plug on the other.

If you don’t have a self-powered mic, you have what’s known as a phantom powered mic. Then you’ll need something like the Beachtek DXA-6HD Dual Hi-Definition Audio Adapter. These are pretty expensive at around $330. But they do include 48v phantom power for the mic.

There are other manufacturers that sell this gear. If you have a favorite, leave me a comment.


Written by scottbourne

February 20, 2009 at 1:06 pm

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Which Camcorder Audio Recording Mode Should You Use?

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Generally, DV camcorders use pulse code modulation (PCM) as their primary sampling method. Depending on your camera, you should have several quality choices.

The higher the PCM sampling rates (expressed in thousands of cycles per second (kHz)) and the number of data bits per sample (bits,) the better the quality.

Ideally, you should be able to choose between mono or stereo (that’s one or two channels) and selecting a 16-bit audio source, sampled at 48 kHz, will provide the best quality.

You can record at CD-quality (which, believe it or not is inferior to the highest quality) and sample at 44.1 kHz.

The lower-quality 16-bit samples at 32 kHz are generally so poor in quality that I cannot recommend using this setting for anyone

The lowest quality is four channels at 12-bits sampled at 32 kHz. This is only useful when you plan to do additional voice over or sound effects (SFX) at a later date for commentary or similar purposes.

In short, you should always use the highest quality for your camcorder audio setting unless you have a good reason not to.

Written by scottbourne

December 28, 2008 at 10:03 pm

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Affordable & Improved Audio For Video – RODE Videomic

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I’ve already talked about the importance of improving the audio you record along with your video. Here’s an inexpensive way to do that, and still get great results.

While you may eventually need several different types and styles of microphones, you’ll almost certainly always have need of a shotgun mic. Shotgun mics are very directional. They record audio in tight patterns and at greater distances than your video camera’s built-in mic.

While these mics can cost thousands of dollars, Australian microphone maker Rode makes the “Videomic,” which sells for about $150.00.

The Rode Videomic plugs into your video camera using a standard Mini jack and mounts to your video camera’s accessory shoe. The mic features a built in shock mount that reduces handling noise. Best of all, since it offers a tight pickup pattern, you can reliably record sounds as far away as 20 feet.

The audio quality exceeds what you’d expect to get for this price point. It offers very low noise with very rich and full sound especially compared to most built in video camera mics

If you hope to do professional work, you’ll need to step up to the more expensive shotgun makers. But if you’re just starting out, Rode offers you a great way to improve your sound without busting your budget.

Written by scottbourne

December 9, 2008 at 10:07 pm

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