5.1 Portable Recorder?
Just curious....does anybody know if there is a portable field recorder that records in 5.1?
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Well, nothing records in "5.1" since 5.1 is encoded audio that is made up of 6 discrete channels. So you're first off looking for a portable, 6 channel recorder.
Sound Devices 788T would work great for that. However, why do you want to record anything in 5.1? (Most surround effects in movies are mono, or at most stereo sounds that are then moved around to create surround effects) What mic's are you recording with? What are you recording? |
Almost all multi-channel mixing is done in post. In other words in ProTools or Logic, Cubase or the like DAW. Rarely will you see mic trees set up to do multi-dimensional sound capture but extremely rare as you have much more control in a multi-channel DAW setup for 5.1, 7.1 or whatever output you are going to.
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Soundfield do surround sound microphones which is where you would need to start really:
SoundField: Surround Sound Microphones For HD Broadcast & Film Location Recording As you can see it is not as uncommon or unusual as the other posters suggest. For recording natural ambiances it is much better than trying to do it in post. Geoff |
Holophone produce a couple of smaller surround 5.1 mics that are encoded to 2 channel for recording, I have not seen this model (in real life) but have used one of the more upmarket Holophone mics with STUNNING results.
PortaMic pro With one of these mics and a Zoom H4n recorder the results could be quite interesting |
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Thanks Steve (and all other posters) ....as I'm no expert with audio by any means, just curious how people go about obtaining a 5.1 recording/mix....whether it be in the field or in post and what kind of portable devices are out there (besides using a camcorder with built in 5.1 recording capabilities) for recording 5.1 stuff. |
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99.9% of "5.1" and "7.1" mixes are artificially synthesized in post-production mixing. The whole concept of ".1" is a reference to the fact that ONE of the channels has a lower sampling rate when everything is compressed together (as Dolby, et.al.) When location sound mixers can scarcely negotiate 30 seconds of silence to record " room tone", recording useful 5.1 ambiance out in the field seems like a fantasy. |
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For post, many audio workstations and NLEs handle a 5.1 mix easily. Vegas, Nuendo, Premiere, etc. You need a multichannel interface for your sound card and the proper monitor speaker setup. Mixing for theatrical release and broadcast requires a fairly sophisticated setup because of the licensing requirements in order to use Dolby or DTX'es encoding of the 6 output channels. The specs of the mixing stage required to qualify to use that little Dolby logo are pretty stringent. |
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I'm not sure what you mean that .1 is a lower sampling rate Richard. Surely it means it is a discrete channel filtered at about 50Hz for Low Frequency Effects as opposed to 5.0 where the sub is a sum of all the low frequencies of the other channels and not controllable independently. Sampling rates do not change. These are certainly the set-ups that I and colleagues use. |
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