Difference between revisions of "MTD2 class 6"

Revision as of 02:55, 10 October 2006

In class

• Transducers/Microphones
• Connectors
• Audio Levels
• DAT Demo
• Scan Demo

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

• Rane Pro Audio Reference dB
• Interactive Design Tools: Utilities : VRMS / dBm / dBu / dBV calculator

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.

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

DAT Machine

DAT Machine Demo

Recording Demo with HD-P2

Scanners

[Image Scanner]

How Stuff Works 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?

Homework

Read Chapter 2 in Sound Design for IM

Scan, color correct, and crop boards

Quiz 2 next week MTD2 Quiz 2 Review