Difference between revisions of "Mediaworks - DSLR Dual System Sound"
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*A sync point, or marker, is clearly captured both visually and audibly at either the beginning or end of each recording | *A sync point, or marker, is clearly captured both visually and audibly at either the beginning or end of each recording | ||
*Both recording devices are using compatible record settings | *Both recording devices are using compatible record settings | ||
| + | |||
| + | === Cameras === | ||
| + | |||
| + | Use only the T2i model Canon Rebel | ||
| + | |||
| + | *Record Format > 1920x1080 (30 fps) | ||
| + | *Sound Recording > On (it is recommended to record a scratch audio track. There is a known issue of the camera audio being out of sync) | ||
=== Audio === | === Audio === | ||
| Line 14: | Line 21: | ||
Record Format | Record Format | ||
| − | *48 kHz / 24 bit | + | *48 kHz / 24 bit -highest quality |
| − | *48 kHz / 16 bit | + | *48 kHz / 16 bit |
==== Microphones ==== | ==== Microphones ==== | ||
| − | *Lavalier | + | * Lavalier |
| − | *Shotgun | + | ** Most are omni-directional, a few are cardioid. |
| + | ** Good for interviews. | ||
| + | * Shotgun | ||
| + | ** Use a boom. | ||
| + | ** Check for bass roll-off on mic. | ||
| + | ** Use a wind screen when outside. | ||
| − | ===Slating | + | ===Slating=== |
| + | * There needs to be an audio and visual sync point at the beginning or end of each clip. | ||
| + | * Use a clapperboard or clap your hands. | ||
| + | * On the clapperboard write the production name, scene, shot, and take. | ||
| + | |||
| + | ====Head Slate==== | ||
#Director or AD calls for "quiet on the set" and then for "roll sound". | #Director or AD calls for "quiet on the set" and then for "roll sound". | ||
#The sound engineer will start recording and allow a few seconds of pre-roll before calling out "speed". | #The sound engineer will start recording and allow a few seconds of pre-roll before calling out "speed". | ||
#The camera operator will commence recording and call out "speed". | #The camera operator will commence recording and call out "speed". | ||
#The AC will be holding the slate that is clearly labeled with scene information in front of the camera and the clapper sticks open. The AC will verbally state the slate information and call "marker" and close the sticks while holding this pose for a few seconds. | #The AC will be holding the slate that is clearly labeled with scene information in front of the camera and the clapper sticks open. The AC will verbally state the slate information and call "marker" and close the sticks while holding this pose for a few seconds. | ||
| − | + | ||
| + | ====Tail Slate==== | ||
| + | If a slate is not possible at the start of the take it can happen at the end | ||
#After the Director calls "cut" both the sound engineer and camera operator should let the recording continue. | #After the Director calls "cut" both the sound engineer and camera operator should let the recording continue. | ||
#The AC should complete the slate calls in the reverse order and hold the clapper upside down to signify this is a tail slate. | #The AC should complete the slate calls in the reverse order and hold the clapper upside down to signify this is a tail slate. | ||
| − | === | + | === Peak === |
| + | Prepare audio clips by normalizing in Peak and saving an appropriately named track that will be easily identifiable with the corresponding video clip. | ||
| − | + | Note: When normalizing select the portion of audio after the clap marker. | |
| − | + | If the audio files are stereo buy there is only audio on one track they can be converted to mono. | |
| − | + | ||
| + | # Open the file. | ||
| + | # Go to '''Edit > Select All'''. | ||
| + | # Go to '''DSP > Stereo to Mono'''. | ||
| + | # In the new window set the slider to the left or right depending on which side you need to keep. | ||
=== Final Cut === | === Final Cut === | ||
| + | Remember that it is easier to rename the files (if needed) before they are imported to Final Cut. | ||
| + | |||
| + | ====Importing Files==== | ||
| + | * Import the audio files into a '''Bin'''. | ||
| + | |||
| + | * Use [[Log_and_Transfer_-_FCP | Log and Transfer]] to import the video files. | ||
| + | ====Merging Clips==== | ||
| + | Follow the article below for instructions on syncing the audio and video files with the '''Merge Clips''' command. | ||
| + | * [[Merging_Clips_from_Dual_System_-_FCP| Merging Clips]] | ||
| + | |||
| + | ===Exif Data=== | ||
| − | [[ | + | Read this article for [[Exif_Data_-_DSLR_Video | Exif Data]] information. |
| + | [[Category:2011-2012]] | ||
Latest revision as of 08:59, 15 October 2012
Contents
Overview
Dual system sound is a motion picture technique of capturing sound on a separate device from the camera. The image and the soundtrack are synchronized during post-production using sync points that are typically accomplished using a clapper board.
It is critical that:
- A sync point, or marker, is clearly captured both visually and audibly at either the beginning or end of each recording
- Both recording devices are using compatible record settings
Cameras
Use only the T2i model Canon Rebel
- Record Format > 1920x1080 (30 fps)
- Sound Recording > On (it is recommended to record a scratch audio track. There is a known issue of the camera audio being out of sync)
Audio
Zoom Recorders
Record Format
- 48 kHz / 24 bit -highest quality
- 48 kHz / 16 bit
Microphones
- Lavalier
- Most are omni-directional, a few are cardioid.
- Good for interviews.
- Shotgun
- Use a boom.
- Check for bass roll-off on mic.
- Use a wind screen when outside.
Slating
- There needs to be an audio and visual sync point at the beginning or end of each clip.
- Use a clapperboard or clap your hands.
- On the clapperboard write the production name, scene, shot, and take.
Head Slate
- Director or AD calls for "quiet on the set" and then for "roll sound".
- The sound engineer will start recording and allow a few seconds of pre-roll before calling out "speed".
- The camera operator will commence recording and call out "speed".
- The AC will be holding the slate that is clearly labeled with scene information in front of the camera and the clapper sticks open. The AC will verbally state the slate information and call "marker" and close the sticks while holding this pose for a few seconds.
Tail Slate
If a slate is not possible at the start of the take it can happen at the end
- After the Director calls "cut" both the sound engineer and camera operator should let the recording continue.
- The AC should complete the slate calls in the reverse order and hold the clapper upside down to signify this is a tail slate.
Peak
Prepare audio clips by normalizing in Peak and saving an appropriately named track that will be easily identifiable with the corresponding video clip.
Note: When normalizing select the portion of audio after the clap marker.
If the audio files are stereo buy there is only audio on one track they can be converted to mono.
- Open the file.
- Go to Edit > Select All.
- Go to DSP > Stereo to Mono.
- In the new window set the slider to the left or right depending on which side you need to keep.
Final Cut
Remember that it is easier to rename the files (if needed) before they are imported to Final Cut.
Importing Files
- Import the audio files into a Bin.
- Use Log and Transfer to import the video files.
Merging Clips
Follow the article below for instructions on syncing the audio and video files with the Merge Clips command.
Exif Data
Read this article for Exif Data information.
