Saturday, July 5, 2014

Getting Professional Quality Sound On Your Wedding Video.

When you first look at what you've filmed on your new camcorder you'll be really pleased with the results, but that initial novelty makes you immune to all the usual faults such as shaky shots, too much panning and zooming etc. All these visual faults can easily be corrected using better techniques and a tripod or monopod.

Modern HD video cameras are capable of producing excellent results, especially when you edit the original footage using the latest computer based editing programs to remove all the bad shots and use effects and transitions tastefully to enhance the finished product.

It's not uncommon for the finished product to end up looking great but the sound quality lets them down. The main reason for this is that the microphone built into the video camera is usually too far away from the people you're filming. Any of the best videographers will tell you that in order to get the best shots, you have to be close to the crowd, but far enough away to allow the party to happen without you being part of it. Some editing programs have advanced audio functions to remove unwanted artifacts and enhance the audio, however there is a limit to what these tools can achieve and it's always better to address problems at source and not rely on some magic bullet in Post Production.

At the time of filming, our ears, eyes and brain work together to effectively suppress the reverberation and other unwanted sound sources in the room to allow us to hear what someone is saying, what we hear is different to what a microphone ëhearsí.

Although poor sound quality when accompanied by pictures of the person who's talking helps us to work out what is being said, this isn't any use if cutaway shots are used during the dialogue, also you shouldn't make your audience have to work hard to hear the words. This is where external microphones are needed, the closer a microphone can get to the subject, the quieter other unwanted sounds effectively become.

If, at this stage you donít have any external microphones, then the best advice for getting good quality sound from the built in microphone is to get your camera as close to your sound source as possible i.e. for most group shots the camera should be about 6 feet away and use the wide angle lens, rather than being a long way from the group and zooming in to get the same shot size.
If you are taking videography seriously then itís best to wear closed-back headphones so that you only hear what will be on the audio tracks.

Some camcorders have a built in stereo type microphone which can be unplugged from its socket or there are external microphone sockets and some means of switching between them and the built in microphones, also an A/V socket is usually available for plugging in an external audio mixer. It might be necessary to buy a stereo plug to two mono sockets lead so that you can make full use of the two tracks that are available on most camcorders.

So what do you want to video or what have the family press ganged you into filming? Hereís one typical event and advice on getting the best sound.

Weddings, Christenings etc

Wandering around with a camcorder during the service is distracting, so prior to the event, arrange to leave the camera on a tripod at the side of the church framed on the couple and the priest. Getting the vows is the most important shot in a wedding video, if you want other shots youíll have to get hold of another camcorder. Itís a good idea to keep recording on that camera as well so that you only have to synchronize both shots once in the edit but just use the good sound from the main camera.

If you have a radio microphone arrange for the priest to wear it, since heíll be the one doing most of the talking and the responses of the couple will be picked up on his microphone as heís close to and facing them, the coupleís sound wont be as good as the priestís but so long as they are no more than 3 feet away from the microphone it will be usable; in the edit add a bit of bass to the sections where the couple are talking and this will help to match the sound of the priest. Put fresh batteries in the transmitter and receiver, thereís no ëtake twoí in this situation.

If you donít have a radio microphone, plug in a cardioid condenser or electret microphone into one channel of your camcorder positioned on a short stand (about 2-3 feet high) on the floor, close to where the couple will make their vows, pointing up at the couple and priestís heads and frame the shot to just avoid the microphone. Another cardioid microphone plugged into the other channel can be put on the pulpit if the priest delivers some of the service from there.

Itís best to set audio levels before the service to ëAutoí or set levels manually and leave about 6dB of headroom to avoid distortion, i.e. your meter levels should just peak before the red section. Tape down cables with 2î wide tape so that no-one trips up and causes damage to themselves and the attached camera. Donít forget to set the camera to ëRecordí before the bride arrives and make sure you have a tape of sufficient length for the whole service.

At the reception you will have to find out who will be making speeches and arrange to put your microphones on short stands on the table or taller stands on the floor. Two microphones should give good general coverage for the ëtop tableí where the principal speakers will be; maybe arrange to get someone to position the nearest microphone infront of each speaker. The camera position wont be as limited as in the church but be extra careful with cables.

Camcorder technical issues.

For best quality sound and pictures make sure you record in ëStandardí mode, not ëLong Playí It is best to manually control volume levels (sometimes quite fiddly on domestic camcorders) or accept the potential downside of ëpumpingí audio if you elect to use the ëautoí functions. Condenser microphones will need a separate power supply on most camcorders unless they are the semi-professional and professional versions, in which case youíll have to select phantom power to be active on each channel.

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