Sound Recording for motion pictures a class project in advance production.
Educational author emergency Harry production supervisor audio visual center
Indiana University faculty advisor.
Bruce are Buckley.
The objective of a sound man is to record intelligible sound.
This is easily done in a professional studio
that is acoustically treated for sound recording a court floor helps to quiet the
movements of crew and equipment.
The ceiling and walls were constructed to eliminate outside noise.
And treated to reduce reverberation.
But film production units often have to record synchronous sound on locations which
are far from ideal.
Such as in this office.
The walls windows floor
and ceiling are hard surfaces which reflect sound waves causing excessive
reverberations.
Outside sound
and building noises which ordinarily go on notice to the ear will be picked up by a
microphone.
In planning for the recording session the sound man must consider three problems.
Are clues to call treatment of the room.
Controlling or avoiding unwanted noise and choice
and placement of microphones.
A rough sketch of the set helps the sound man position his equipment in cooperation
with the camera man
and lighting crew.
The sound man's first consideration is choice and placement of the microphone.
The choice of a microphone depends on the subject's position and actions
and the area from which the sound is to be picked up or excluded.
The microphone should be mounted in such a way
that it is isolated from mechanical vibrations.
Its placement depends upon the camera's field of view.
For example in this scene the subject remain seated not only upon the cooperative
efforts of the department within the school.
But success also depends upon your spiritual and monetary support as well.
The microphone is placed as close to the subject as possible and adjusted so
that its pattern will pick up his voice
and be less sensitive to sounds coming from other directions on the set.
Fessor I seem to be having some trouble neutral acid solution.
What are you using for an indicator used in a scene involving two
or more people in which the microphone cannot be easily concealed it may be
suspended from a boom the boom can be moved to follow the actors keeping the
microphone close at all times makes it.
Way back
when reporting a larger group a microphone with an omnidirectional pickup pattern
may be suspended from above
one recording outdoors the only control of sound quality is the selection
and placement of the microphone as shown in these examples microphone selection
and placement is the first important element in good sound recording.
With the microphone placed the next consideration is the acoustical treatment of
the set in most location recording an untreated set produces excessive
reverberation.
And closing the area with acoustical materials reduces the degree of reverberation.
Highly porous materials are used to absorb sound.
In this set but sound absorbing materials include a thick rug heavy drapes
and acoustical tile flats. These materials differ in their effectiveness.
Ordinary drapery material provides a minimum of control.
While a thick rug better reduces reflected sound waves.
Specially designed acoustical tile is among the most efficient sound absorbing the
Dariel.
The holes in this fibrous material greatly increase it sounds or being ability.
The sound energy absorbed is changed into a minute amounts of heat.
That combined materials in this set reduce the excessive reverberation giving
intelligibility and a lifelike quality to the recording.
Area her soul provides a check of the effectiveness of a sound treatment.
In the past years.
Your support has always been watching the VU meters the assistant sound man adjusts
the recording level dynamic times. Your efforts will continue to the fly.
He may indicate that the sound is still too live or reverberant.
The sound man suggests
that some of the flats being moved in closer.
Add additional acoustical material is sometimes used to fill in an open area
that may be causing reverberation problems.
The final position of the flat lights
and equipment should be checked by looking through the viewfinder of the camera to
be sure they will be out of frame during shooting to maintain consistent sound
quality from scene to scene further changes in the acoustical treatment should be
kept to a minimum.
So that the microphone will not pick up the noise of the running camera a blimp
or a soundproof housing is placed around the camera.
OK let's have a sound check.
We're getting our home from something.
OK generally an electrical disturbance will cause a home in the recording equipment
and usually be eliminated through a few simple checks reversing the AC power plug.
Checking the ground connection
separating microphone and power cables they should cross only at right angles
and if parallel be at least two feet apart nearby motors
and fluorescent lights are off from the source of unwanted so with unwanted sounds
eliminated the location acoustically treated
and the microphone plays the sound man is ready to make a quality recording.
All right.
Life is over by while the set.
This is a rehearsal sound or a sound ready.
Camera ready camera ready. Roll sound.
Rolling roll camera rolling slight.