Signal Processing II Flashcards
1
Q
Dynamics
A
Use variable gain amplifiers (VGA)compressor makes loud sounds less loud expander makes quiet sounds more quiet can also be used to manipulate envelope
2
Q
Compressor parameters
A
Threshold
Volume level at which gain reduction begins
Attack
How quickly compression kicks in after threshold is crossed
Ratio
How much gain reduction will occur
Release
How quickly volume will return to normal after
3
Q
Delay devices
A
Tape deck
analog – capacitor
Digital – sample and hold
4
Q
Signal processor
A
Device used to either manipulate or emulate some characteristics of a sound 4 types Spectrum frequency / tone TIME reflections AMPLITUDE dynamic range /envelope Noise noise reduction
5
Q
Uses of delay
A
Echo – delay> 50 ms
ADT - delay
