Difference between revisions of "MTD2 class 6"
esse quam videri
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| − | 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) | + | *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 | + | *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. | + | *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 | + | *Speaker level - higher voltages for speakers |
| − | Rane Pro Audio Reference dB | + | |
| − | Interactive Design Tools: Utilities : VRMS / dBm / dBu / dBV calculator | + | Audio Level Links |
| − | Analog VU meter - nominal level 0dB | + | *[http://www.rane.com/par-d.html#decibel Rane Pro Audio Reference dB] |
| + | *[http://www.analog.com/Analog_Root/static/techSupport/designTools/interactiveTools/dbconvert/dbconvert.html Interactive Design Tools: Utilities : VRMS / dBm / dBu / dBV calculator] | ||
| + | |||
| + | ===Meters=== | ||
| + | Analog VU meter - nominal level 0dB [[Image:VUMeter.jpg]] | ||
| + | |||
| + | Digital Meter - nominal level -12dB - 16dB [[Image:DigitalMeter.png]] | ||
Red line shows last Peak. Numbers at the top show loudest Peak. | Red line shows last Peak. Numbers at the top show loudest Peak. | ||
| − | |||
==Transducers== | ==Transducers== | ||
Revision as of 15:26, 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
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?
