Audio 1 PDF - Sound in Film Production

 In the process of filming there's capturing and editing sound Who captures the sound: -Sound mixer most senior position, serves as sound recordist and is responsible for balancing audio chooses what equipment to use evaluates sound quality assembles the s...

 In the process of filming there's capturing and editing sound Who captures the sound: -Sound mixer most senior position, serves as sound recordist and is responsible for balancing audio chooses what equipment to use evaluates sound quality assembles the sound team -Boom operator responsible for capturing sound use the boom microphone communicates between the mixer and set staff works closely with other departments attaches and conceals microphones on actors sets up and takes down easement - sound assistant provides support for sound department ↳ maintains and organizes equipment check batteries ↳ data management ↳ -Sound trainee uses assist with utility basically a intern  Art of location sound recording goal is to capture the sound in the best sound quality possible people are more forgiving of bad audio than bad sound you know you did a good job recording when no one should be able to tell Technical requirements most sound problems come from poor location scouting understanding A large range of concepts will help you better understand difficult situations Location sound problems include... planes generators hallways and staircases (echoe) trains dogs It'S your responsibility to determine whether a location is useable or not!. Be prepared ahead of time!  Types of production sound: Location sound: sound that is captured while the camera is rolling Production sound: The collection of all sound elements captured during the filming on set There are 2 types of production sound: sync audio - sound recorded on set while the camera is rolling wild sound- sound recorded while the camera is not recording Sync audio includes: dialogue (referred as sync audio) - The actors performance of the script captured from a single source like a boom mic Wild audio includes: wild tracks or wild lines- dialogue that is recorded without the camera rolling ambience or background loops - ambient recordings of silence ↳ Roomtone: The sound of silence in a room ↳ Natural sound: sound of silence in an outside location Special note: presence is silence in naturally recorded dialogue ↳ Wild sound effects: specific sounds from a location used during the filming process without the camera rolling It's all about Control!  Basics of audio Sound for film we hear the world as ratio's between ( sounds are not absolute values) sound only exists in time, there is no such thing as a audio still frame Analog vs digital Analog is a continuous form of energy digital uses computer software for sound The physics of sound wavelengthy-waste The decibel The decibel (dB) The unit of measurement for all audio there are a variety of formats for different format Common units: dBFS: digital dBU - professional analogue dBSPL: sound in air  Human hearing Frequency response: humans hears sands from 20Hz to 20000 Hz Fletcher Munson curve we don't hear all frequencies equally. FM curves are a measurement of how sensitive our hearing is at different frequencies Loudness: doesn't mean volume frequency and duration changes the way we perceive sound Phon- a unit of perceived loudness of sounds 80dbspl at 1khz is equal to 80 phons All other frequencies vary Decibel chart:  Sound in film production on set ( production studio) sound editing in offline edit ADR - ( audio dialogue replacement) foley composer music recordists / editor current AI just another tool capabilities in premiere pro AI generated sounds data / metadata management The importance of sound in film Sound is one of the primary roles of showcasing emotion to an audience. Beyond dialogue, sound and music are crucial in conveying a directors intention to the viewer Introduction to digital audio Digital audio is the representation of sound in a digital format, using a series of discrete measurements at regular intervals Sample rates and bit depth Sample rate: sample rate is how many measurements there are per second higher sample rates can record higher frequencies most film radio is sampled 48000 times per second or 48 kHz Bit depth: bit depth is the qualify of each sample 24 bit is standard for recording and editing and has a dynamic range of 144 Db larger bit depths will Converting sound all sounds starts as pressure changes Polar patterns Condenser microphones require a boost Lavalier mic's are omnidirectional