{"id":121,"date":"2024-10-14T09:28:34","date_gmt":"2024-10-14T09:28:34","guid":{"rendered":"https:\/\/routledgelearning.com\/voiceandvision\/?post_type=content&p=121"},"modified":"2025-05-07T07:37:23","modified_gmt":"2025-05-07T07:37:23","slug":"chapter-16-location-sound-techniques","status":"publish","type":"content","link":"https:\/\/routledgelearning.com\/voiceandvision\/resources\/chapter-16-location-sound-techniques\/","title":{"rendered":"Chapter 16: Location Sound Techniques"},"content":{"rendered":"\n

The basic production sound team on a small-scale film project usually consists of two people, the sound mixer (aka the sound recordist) and the boom operator. Occasionally, on shoots with very simple location audio requirements, you\u2019ll see one person performing both roles, but when gathering sync sound, like dialogue, is part of the production, two people are highly recommended. On bigger shoots with complex sync audio needs, there is a third person called the cable wrangler, who sets up equipment, holds a second boom when necessary, and wrangles the cable when the boom operator follows a moving shot. The sound personnel are a tight team, and they should be chosen with the same diligence as choosing the DP, AC, and gaffer. The sound mixer is the head of the sound department and is responsible for getting the best quality audio onto the recording format. This not only means setting the record levels on the sound recorder but also includes understanding the acoustics and ambient qualities of a given location, listening for unwanted noise intrusions on the set, and choosing the most appropriate microphones for the situation. The sound mixer works very closely with the boom operator in strategizing optimal microphone placement. The boom operator is responsible for placing the microphone where it needs to be, whether that means holding it aloft over a scene, hiding it under an actor\u2019s collar, planting it somewhere on the set, or any combination of these. The boom operator must know the pickup patterns and capabilities of a variety of microphones and how they function in different acoustic environments ( Figure 16-1 ).<\/p>\n\n\n\n


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High Resolution and Color Figures<\/h2>\n\n\n\n
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A typical sound mixer’s equipment chain can include a sound recorder (with a peak meter) (a) and a mic mixer (with a VU meter) (b).<\/figcaption><\/figure>\n\n\n\n
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Normal dialogue should be recorded around -20 to -18 dB on the peak meter. Loud sounds should peak at -12 dB or else they risk overmodulating.<\/figcaption><\/figure>\n\n\n\n
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The scale of a VU meter is different from that of a peak meter. The loudest signal should peak between 0 dB and +1 dB, with normal dialogue registering between -5dB and -2dB.<\/figcaption><\/figure>\n\n\n\n
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A 1kHz reference tone is used to calibrate the output of the mic mixer with the input of the recorder (or camcorder). The mixer’s VU meter reads the reference tone at 0dB (left), whereas the recorder’s peak meter should be set to register the tone at -20dB (right).<\/figcaption><\/figure>\n\n\n\n
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The auto gain control found on many video cameras should be turned off to have precise manual control over the audio recording levels.<\/figcaption><\/figure>\n\n\n\n
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Microphones should be positioned “on-axis” according to their specific pickup pattern. Note how the microphone is pointing directly at the actor’s mouth from above and slightly in front.<\/figcaption><\/figure>\n\n\n\n
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Because of their tiny size, lavaliere microphones can be easily concealed in the actor’s clothing (top), but special care must be taken to stay “on-axis” (center). A turn of the head can make the signal difficult to record (bottom).<\/figcaption><\/figure>\n<\/div>\n\n\n\n

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