Location Audio

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Capturing quality sound on location is one of the greatest challenges faced by student filmmakers. 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.

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Location Audio

  1. 1. Location Audio for Film Prepared by: John Grace Film Instructor, DATA Charter HS Member of IATSE Local 480 Albuquerque, NM
  2. 2. 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.
  3. 3. Location Audio – Single System • Typically, these are Camcorders with External Microphone Inputs
  4. 4. Location Audio – Dual System • Dual Systems usually feature Digital Cinema or Film Cameras
  5. 5. Location Audio Systems • In Dual System, we synchronize the audio with the picture with a Slate:
  6. 6. Location Audio Systems • In Dual System, we synchronize the audio with the picture with a Slate:
  7. 7. Location Audio Systems • In Dual System, we synchronize the audio with the picture with a Slate:
  8. 8. Location Audio – Positions • Mixer (AKA Recordist)
  9. 9. Location Audio – Positions • 1st Assistant (Boomer)
  10. 10. Location Audio – Positions • 2nd Assistant (Utility)
  11. 11. Location Audio - History • Vitaphone and Photophone Recorders  Single system  Optical recorders record on film  Large and heavy  Very expensive  Poor sound quality  1930’s and 1940’s
  12. 12. Location Audio - History • Fantasound Recorder  Double system  Optical playback in theaters  3-4 channel sound  Made for Fantasia  Good sound quality  Throughout 1940’s
  13. 13. Location Audio - History • Nagra Reel to Reel Recorders  Monaural (single track) recording  ¼” Tape on 5” or 7” reels at 7.5-15 IPS  Popular from the 1950’s through the 1990’s  Fairly expensive
  14. 14. Location Audio - History • Tascam DA-P1 DAT Recorder  2 channel recorder  External recording to DAT Tapes  No time code
  15. 15. 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
  16. 16. Location Audio Current Devices • Zoom R8 SDHC Recorder  Recording to SDHC Cards  2 channel recorder  8 channel mixer  No time code
  17. 17. 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
  18. 18. Location Audio Current Devices • Zoom H4N Field Recorder  4 channel recorder  4 channel mixer  Records to SD Cards  Low Price ($269. List)  Ideal for DSLR’s
  19. 19. Location Audio Current Devices • Current Popular Brands  Lectrosonics – Top of the Line Wireless Kits
  20. 20. Location Audio Current Devices • Current Popular Brands  Sennheiser – Wireless Lavs and Shotguns
  21. 21. Location Audio Current Devices • Current Popular Brands  Shure – Wireless Lavs and Field Mixers
  22. 22. Location Audio Current Devices • Current Popular Brands  Azden – Low priced Shotguns and Wireless
  23. 23. Location Audio Current Devices • Current Popular Brands  Audio Technica – Wireless & Headphones
  24. 24. 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
  25. 25. Location Audio - Mixer Cart
  26. 26. Location Audio - Mixer Cart • UHF Wireless ReceiversUHF Wireless Receivers
  27. 27. Location Audio - Mixer Cart • UHF Wireless ReceiversUHF Wireless Receivers • UHF Wireless TunersUHF Wireless Tuners
  28. 28. Location Audio - Mixer Cart • UHF Wireless ReceiversUHF Wireless Receivers • UHF Wireless TunersUHF Wireless Tuners • HDR Backup RecorderHDR Backup Recorder
  29. 29. Location Audio - Mixer Cart • UHF Wireless ReceiversUHF Wireless Receivers • UHF Wireless TunersUHF Wireless Tuners • HDR Backup RecorderHDR Backup Recorder • Camera #1 MonitorCamera #1 Monitor
  30. 30. 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
  31. 31. 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
  32. 32. 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
  33. 33. Location Audio Acquisition • Priorities:Priorities: • Recording Clean DialogueRecording Clean Dialogue
  34. 34. 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”
  35. 35. Location Audio Acquisition • Priorities:Priorities: • Capturing Room ToneCapturing Room Tone
  36. 36. Location Audio Acquisition • Priorities:Priorities: • Capturing Room ToneCapturing Room Tone
  37. 37. Location Audio Acquisition • Priorities:Priorities: • Capturing Location Sound EFXCapturing Location Sound EFX
  38. 38. Location Audio Acquisition • Priorities:Priorities: • Capturing Location Sound EFXCapturing Location Sound EFX
  39. 39. Location Audio Acquisition • Priorities:Priorities: • Minimizing Background NoiseMinimizing Background Noise
  40. 40. Location Audio Acquisition • Priorities:Priorities: • Minimizing Background NoiseMinimizing Background Noise • Furniture (furnie) pads
  41. 41. Location Audio Acquisition • Priorities:Priorities: • Utilizing Various MicrophonesUtilizing Various Microphones
  42. 42. Location Audio Acquisition • Priorities:Priorities: • Utilizing Various MicrophonesUtilizing Various Microphones
  43. 43. Location Audio Acquisition • Priorities:Priorities: • Utilizing Various MicrophonesUtilizing Various Microphones
  44. 44. Location Audio Acquisition • Priorities:Priorities: • Utilizing Various MicrophonesUtilizing Various Microphones
  45. 45. Location Audio Acquisition • Priorities:Priorities: • Utilizing Various MicrophonesUtilizing Various Microphones Shotgun – Directional
  46. 46. Location Audio Acquisition • Priorities:Priorities: • Utilizing Various MicrophonesUtilizing Various Microphones Lavaliere – Omni-directional
  47. 47. Location Audio Acquisition • Items in a Wireless Lavaliere Package:Items in a Wireless Lavaliere Package: • Lavaliere MicrophoneLavaliere Microphone
  48. 48. Location Audio Acquisition • Items in a Wireless Lavaliere Package:Items in a Wireless Lavaliere Package: • Wireless TransmitterWireless Transmitter
  49. 49. Location Audio Acquisition • Items in a Wireless Lavaliere Package:Items in a Wireless Lavaliere Package: • Wireless ReceiverWireless Receiver
  50. 50. Location Audio Acquisition • Items in a Wireless Lavaliere Package:Items in a Wireless Lavaliere Package: • XLR Transmitter (“Butt Plug”)XLR Transmitter (“Butt Plug”)
  51. 51. Location Audio Acquisition • Items in a Wireless Lavaliere Package:Items in a Wireless Lavaliere Package: • Mini Plug Input CableMini Plug Input Cable
  52. 52. Location Audio Acquisition • Items in a Wireless Lavaliere Package:Items in a Wireless Lavaliere Package: • XLR Plug Input CableXLR Plug Input Cable
  53. 53. Location Audio Acquisition • Items in a Wireless Lavaliere Package:Items in a Wireless Lavaliere Package: • Camera MountCamera Mount
  54. 54. Location Audio Acquisition • Items in a Shotgun Package:Items in a Shotgun Package: • Boom Pole (fish pole)Boom Pole (fish pole)
  55. 55. Location Audio Acquisition • Items in a Shotgun Package:Items in a Shotgun Package: • Rycote Softie (dead cat)Rycote Softie (dead cat)
  56. 56. Location Audio Acquisition • Items in a Shotgun Package:Items in a Shotgun Package: • Shotgun MicrophoneShotgun Microphone
  57. 57. Location Audio Acquisition • Items in a Shotgun Package:Items in a Shotgun Package: • XLR CableXLR Cable
  58. 58. Location Audio Acquisition • Items in a Shotgun Package:Items in a Shotgun Package: • Suspension MountSuspension Mount
  59. 59. Location Audio Acquisition • Items in a Shotgun Package:Items in a Shotgun Package: • Camera MountCamera Mount
  60. 60. Location Audio Acquisition • Challenges to Capturing QualityChallenges to Capturing Quality Sound:Sound: • KidsKids
  61. 61. Location Audio Acquisition • Challenges to Capturing QualityChallenges to Capturing Quality Sound:Sound: • KidsKids • DogsDogs
  62. 62. Location Audio Acquisition • Challenges to Capturing QualityChallenges to Capturing Quality Sound:Sound: • KidsKids • DogsDogs • PlanesPlanes
  63. 63. Location Audio Acquisition • Challenges to Capturing QualityChallenges to Capturing Quality Sound:Sound: • KidsKids • DogsDogs • PlanesPlanes • TrainsTrains
  64. 64. Location Audio Acquisition • Challenges to Capturing QualityChallenges to Capturing Quality Sound:Sound: • KidsKids • DogsDogs • PlanesPlanes • TrainsTrains • CarsCars
  65. 65. Location Audio Acquisition • Challenges to Capturing QualityChallenges to Capturing Quality Sound:Sound: • KidsKids • DogsDogs • PlanesPlanes • TrainsTrains • CarsCars • SirensSirens
  66. 66. Location Audio Acquisition • Challenges to Capturing QualityChallenges to Capturing Quality Sound:Sound: • KidsKids • DogsDogs • PlanesPlanes • TrainsTrains • CarsCars • SirensSirens • ToolsTools
  67. 67. Location Audio Acquisition Thanks for ViewingThanks for Viewing Teachers are free to use thisTeachers are free to use this presentation under a Creativepresentation under a Creative Commons licensing agreementCommons licensing agreement

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