Chapter 4 · 4. Reverse Track 2 again (Effects > Reverse) 5. Tracks > Mix > Mix and Render....

Chapter 4Sounds in Space

DopplerReverberation

• Reflections• Flutter & Standing Waves• Resonance

Absorption & DiffusionDigital ReverbEcho and Delay

OUTLINE

Doppler Effect

Reverberation: Reflections

Parabolas

Chladni Plate Patterns

Standing Waves

Resonance

Pasco.com

Flutter

Absorption & Diffusion

Keepitquiet.co.uk

Alphacoustic.com

DIFFUSION

ABSORPTION

REVERB IN AUDACITY

Reverb added

Room Size: simulated spacePredelay: How much time before first reflectionReverberance: Length of tailDamping: high frequencies decay more quicklyTone Low: reduce low freqTone high: reduce high freqWet gain: increase volume of reverbDry gain: increase volume of signalStereo width: channel separationWet only: remove original signal

Reverb Settings

1. Duplicate a sound file (Ctr/Cmd A, Ctrl/Cmd C + tracks > add new > mono track, Ctrl/Cmd V)

2. Reverse Track 2 (Effects > Reverse)3. Apply reverb Effects > Reverberation > Manage> Factory

Presets > Large Room

4. Reverse Track 2 again (Effects > Reverse)5. Tracks > Mix > Mix and Render

Preverb

Echo and Delay

Original sound

delays

Delay Type: regular, bouncing ball (reduces time as repeats), reverse bouncing ball (increases time as repeats)Delay Level Per Echo: Amount of change in amplitude in each delayDelay Time: time between repeatsPitch Change Effect: delay will change frequency/tempoLQ Pitch Shift: Changes frequency while maintaining timePitch change per echo: in semitones

Number of Echoes: how many times repeatsAllow duration to change: ***need room in file for delay

Chorus: Multiple delays with deviations to create effect of chorus singing

Automatic Double Tracking: ADT: automated chorus-style effect

ADT & Chorus

Phaser (Phase Shifter)

Uses constructive and destructive interference ”swept” by LFO

Phaser (Phase Shifter) and Flanger

Phaser on sine wave

Flanger on sine wave

Phaser on square wave

Stages: more = stronger effectDry/Wet: 0 = unprocessed, 255 = only delay. Most = 128LFO Freq: adjusts sweep rateLFO start: starts in cycleDepth: How high sweep isFeedback: feeds signal back into phaserGain: increase output amplitude

Audacity Phaser

Time Stretching

Original

Effect > Change Tempo

Effect > Change Speed

Worldizing– Walter Murch

Chapter 4 · 4. Reverse Track 2 again (Effects > Reverse) 5. Tracks > Mix > Mix and Render....

Documents

Transcript of Chapter 4 · 4. Reverse Track 2 again (Effects > Reverse) 5. Tracks > Mix > Mix and Render....

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