Difference between revisions of "MTD2 class 6"
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==Scanners== | ==Scanners== | ||
+ | [[http://en.wikipedia.org/wiki/Image_scanner Image Scanner]] | ||
+ | An image scanner is an imput device that uses a [http://en.wikipedia.org/wiki/Charge-coupled_device CCD] to obtain an image. | ||
==Scan, color correct, and crop boards== | ==Scan, color correct, and crop boards== |
Revision as of 15:29, 27 February 2006
In class
- Transducers/Microphones
- Connectors
- Audio Levels
- DAT Demo
- Scan Demo
Contents
Audio Levels
Good Level Audio Levels
- Mic level - The level (or voltage) of signal generated by a microphone. Typically around 2 millivolts. Compare this with the two normal line levels (1.228V:+4dBu and .316V:-10dBV)
- Phono Level - little larger than mic level also has equalization based on standardized RIAA curve. use phono input a line
- Line Level - . There is an international standard for the level of inputs; it is around -10dBV(.316V) for semi-pro equipment, and about +4dBu(1.228V) for "pro" equipment. Line level outputs can come from tape decks, CD players, tuners, DAT decks, effects, etc.
- Speaker level - higher voltages for speakers
Audio Level Links
Meters
Analog VU meter - nominal level 0dB
Digital Meter - nominal level -12dB - 16dB
Red line shows last Peak. Numbers at the top show loudest Peak.
Transducers
Transducer = a device that converts one type of energy to another. A microphone converts acoustic energy to electrical energy. A speaker converts electrical energy to acoustical energy. They are both transducers.
Microphones
good readin Audio Technica Guide to Microphones
Types of microphones
- Dynamic
- Condenser
- Ribbon
- piezo electric (contact Mic)
other (Stereo, binaural, PZM- pressure zone microphone http://www.crownaudio.com/mics.htm)
Microphone Comparison
Parameter | Dynamic | Condenser | Ribbon |
Frequency Response | Good | Best | Worst |
Dynamic Range | Good | Good | Worst |
Durability | Best | Good | Worst |
Audio connectors
- 1/8" (3.5mm) Connectors Jack Plug Connectors Tip ring sleeve mono stereo
- 1/4"(6.35mm) Connectors
- Banana Plugs
- Binding Posts Bayonet Neill-Concelman/British Naval Connector type of signal varies or BNC
- RCA-Type video left audio right audio
- XLR Microphone XLR
Bluffers guide to WIRES AND CONNECTORS
Scanners
An image scanner is an imput device that uses a CCD to obtain an image.
Scan, color correct, and crop boards
Scan, color correct, and crop boards demo
- Scan borads into Photoshop/Gimp
- Use Photoshop/Gimpto correct color (we don't want color just rclean black and white)
- Use Photoshop/Gimpto crop frames to correct size and aspect ratio
- Save as a series of uncompressed images
InClass Articulate Cuts from storyborads what motivates each cut
- What visual changes are there in the scene?
- What audible changes are there?
- What is the time reference?