Location Audio

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  • date post

    03-Sep-2014
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    Education

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Capturing quality sound on location is one of the greatest challenges student filmmakers face. The public will forgive bad video but not bad sound. This presentation is intended to give high school students a general overview of the equipment and challenges inherent in capturing sound in the field.

Transcript of Location Audio

  • Location Audio for Film Prepared by: John Grace Film Instructor, DATA Charter HS Member of IATSE Local 480 Albuquerque, NM
  • Location Audio Systems There are 2 Types of Location Audio Acquisition in Film Production : Single System The audio is recorded on the same medium as the visuals - ie: on a camcorder max 16 bit. Dual-System (aka Double System) The audio is recorded separately from the visuals on a secondary device. This type of recording requires that the two sources be synchronized and linked in post production max 24 bit.
  • Location Audio Single System Typically, these are Camcorders with External Microphone Inputs
  • Location Audio Dual System Dual Systems usually feature Digital Cinema or Film Cameras
  • Location Audio Systems In Dual System, we synchronize the audio with the picture with a Slate:
  • Location Audio Systems In Dual System, we synchronize the audio with the picture with a Slate:
  • Location Audio Systems In Dual System, we synchronize the audio with the picture with a Slate:
  • Location Audio Positions Mixer (AKA Recordist)
  • Location Audio Positions 1st Assistant (Boomer)
  • Location Audio Positions 2nd Assistant (Utility)
  • Location Audio - History Vitaphone and Photophone Recorders Single system Optical recorders record on film Large and heavy Very expensive Poor sound quality 1930s and 1940s
  • Location Audio - History Fantasound Recorder Double system Optical playback in theaters 3-4 channel sound Made for Fantasia Good sound quality Throughout 1940s
  • Location Audio - History Nagra Reel to Reel Recorders Monaural (single track) recording Tape on 5 or 7 reels at 7.5-15 IPS Popular from the 1950s through the 1990s Fairly expensive
  • Location Audio - History Tascam DA-P1 DAT Recorder 2 channel recorder External recording to DAT Tapes No time code
  • Location Audio Current Devices Fostex PD4 DAT Recorder 6 channel recorder 6 channel mixer External backup to DAT Tapes Internal 60GB HDR Time code I/O
  • Location Audio Current Devices Zoom R8 SDHC Recorder Recording to SDHC Cards 2 channel recorder 8 channel mixer No time code
  • Location Audio Current Devices Deva 16 Recorder by Zaxcom 16 channel recorder 16 channel mixer Time code generator External backup to Compact Flash Media Internal HDR
  • Location Audio Current Devices Zoom H4N Field Recorder 4 channel recorder 4 channel mixer Records to SD Cards Low Price ($269. List) Ideal for DSLRs
  • Location Audio Current Devices Current Popular Brands Lectrosonics Top of the Line Wireless Kits
  • Location Audio Current Devices Current Popular Brands Sennheiser Wireless Lavs and Shotguns
  • Location Audio Current Devices Current Popular Brands Shure Wireless Lavs and Field Mixers
  • Location Audio Current Devices Current Popular Brands Azden Low priced Shotguns and Wireless
  • Location Audio Current Devices Current Popular Brands Audio Technica Wireless & Headphones
  • Location Audio Current Devices Current Popular Brands Wireless Lavs UHF or VHF? VHF is Very High Frequency and wireless transceivers operating on this band often have problems with RF (Radio Frequency) interference UHF is Ulta High Frequency and is less susceptible to RF interference from power lines, walkie talkies, radio stations and the like
  • Location Audio - Mixer Cart
  • Location Audio - Mixer Cart UHF Wireless ReceiversUHF Wireless Receivers
  • Location Audio - Mixer Cart UHF Wireless ReceiversUHF Wireless Receivers UHF Wireless TunersUHF Wireless Tuners
  • Location Audio - Mixer Cart UHF Wireless ReceiversUHF Wireless Receivers UHF Wireless TunersUHF Wireless Tuners HDR Backup RecorderHDR Backup Recorder
  • Location Audio - Mixer Cart UHF Wireless ReceiversUHF Wireless Receivers UHF Wireless TunersUHF Wireless Tuners HDR Backup RecorderHDR Backup Recorder Camera #1 MonitorCamera #1 Monitor
  • Location Audio - Mixer Cart UHF Wireless ReceiversUHF Wireless Receivers UHF Wireless TunersUHF Wireless Tuners HDR Backup RecorderHDR Backup Recorder Camera #1 MonitorCamera #1 Monitor Computer MonitorComputer Monitor
  • Location Audio - Mixer Cart UHF Wireless ReceiversUHF Wireless Receivers UHF Wireless TunersUHF Wireless Tuners HDR Backup RecorderHDR Backup Recorder Camera #1 MonitorCamera #1 Monitor Computer MonitorComputer Monitor Camera #2 MonitorCamera #2 Monitor
  • Location Audio - Mixer Cart UHF Wireless ReceiversUHF Wireless Receivers UHF Wireless TunersUHF Wireless Tuners HDR Backup RecorderHDR Backup Recorder Camera #1 MonitorCamera #1 Monitor Computer MonitorComputer Monitor Camera #2 MonitorCamera #2 Monitor 8 Channel Mixer8 Channel Mixer
  • Location Audio Acquisition Priorities:Priorities: Recording Clean DialogueRecording Clean Dialogue
  • Location Audio Acquisition Priorities:Priorities: Recording Clean DialogueRecording Clean Dialogue Inverse Square Law as it applies to Sound:Inverse Square Law as it applies to Sound: Halving the distance between mic and the soundHalving the distance between mic and the sound sourcesource quadruples the usability of the soundquadruples the usability of the sound
  • Location Audio Acquisition Priorities:Priorities: Capturing Room ToneCapturing Room Tone
  • Location Audio Acquisition Priorities:Priorities: Capturing Room ToneCapturing Room Tone
  • Location Audio Acquisition Priorities:Priorities: Capturing Location Sound EFXCapturing Location Sound EFX
  • Location Audio Acquisition Priorities:Priorities: Capturing Location Sound EFXCapturing Location Sound EFX
  • Location Audio Acquisition Priorities:Priorities: Minimizing Background NoiseMinimizing Background Noise
  • Location Audio Acquisition Priorities:Priorities: Minimizing Background NoiseMinimizing Background Noise Furniture (furnie) pads
  • Location Audio Acquisition Priorities:Priorities: Utilizing Various MicrophonesUtilizing Various Microphones
  • Location Audio Acquisition Priorities:Priorities: Utilizing Various MicrophonesUtilizing Various Microphones
  • Location Audio Acquisition Priorities:Priorities: Utilizing Various MicrophonesUtilizing Various Microphones
  • Location Audio Acquisition Priorities:Priorities: Utilizing Various MicrophonesUtilizing Various Microphones
  • Location Audio Acquisition Priorities:Priorities: Utilizing Various MicrophonesUtilizing Various Microphones Shotgun Directional
  • Location Audio Acquisition Priorities:Priorities: Utilizing Various MicrophonesUtilizing Various Microphones Lavaliere Omni-directional
  • Location Audio Acquisition Items in a Wireless Lavaliere Package:Items in a Wireless Lavaliere Package: Lavaliere MicrophoneLavaliere Microphone
  • Location Audio Acquisition Items in a Wireless Lavaliere Package:Items in a Wireless Lavaliere Package: Wireless TransmitterWireless Transmitter