What is Reverb?
When sound reflects of surfaces creating overlapping echoes
Ao4 for reverb
- Gives ambience, depth, colour, space
- acts as glue of mix
- creates more of a natural feel to instruments
Reverb Parapmeters
- Larger room will have larger pre-delay (vice versa)
- higher frequencies decay much faster than lower frequencies
Spring Reverb (After 1950)
- Bright, brittle sound
- Initially used to add depth/colour to Hammond Organ
- More portable than Plate reverb
- more metallic and less rich than plate reverb
Digital Reverb (1980s Onwards)
- Mathematically simulates real reverb environments using lots of short delays
- can use presets
- greater abundance of RAM/ROM led to digital reverbs having more presets
Plate Reverb
- vibration of metal plate to create sound of reverb
- Reduced need for echo chamber
- often used in amps
Convolution reverb
- Reproduces real reverb from real spaces
- Impulse reflex is generated in a space and then the response is recorded
- Mathematic algorithms subtract the impulse reflects the reverb and this is applied to other sounds
What is reverb decay?
Time it takes for reverb to dissipate
Reverse Reverb
Flipped reverb
- Transient at the end not beginning
What is ADSR
- Attack
- Decay
- Sustain
- Release
What is Clipping?
Signal that exceed the maximum values of a given device
What is Cutoff Frequency?
The nominal value at which a filter has an audible effect on the frequency range of a sound
What is Compression?
-Squeezing dynamic range of a signal by reducing the signal level above a given threshold and ratio.
- Resultant signal is normally boosted so the whole signal is perceived to be louder
What is Delay?
Original signal is repeated
- Normally a decrease in volume and high frequency content with each repeat
What is DI?
Direct Injection
- Direct connection of an electric instrument into a mixing desk
- Often done using a DI Box to match electric characteristics of source signal to the input level required
What are Dry/Wet signals?
Dry: Unprocessed signal
Wet: Effected signal
Dynamic Mic
- Moving coil microphone
- Strong
- Good SPL response
- No external power
- Cardioid
Condenser Mic
- Higher frequency range
- Needs external Phantom Power
- Faster transient response
- Can have any polar pattern
What is EQ?
compensation for deficiencies in the frequency response of recording and playback equipment.
- Cutting/boosting specific frequencies without effecting the overall sound
What is a Phaser/Flanger?
Forms of Modulation, where original signals are combined in different ways to create different audible effects.
- A sweeping sound where the delayed signals are constantly changing
What is Gain?
Stage of a Pr-Amp that boosts the level of a signal at the beginning of a signal path
What is MIDI?
Music Instrument Digital Interface
What is an Input?
The first part of the recording chain.
- from live instrumentation through cables like: XLR, Jack, MIDI, USB
What is Modulation?
signal being modified by another
