User Manual

ManualsBrandsiZotope ManualsAudio SoftwareRX 5 - SOFTWARE FOR AUDIO EDITING / POST PRODUCTION

Table Of Contents

1: INTRODUCTION
Intended Audience for this Guide
About the 2014 Edition
Additional Resources
About iZotope
2: WHAT IS AUDIO REPAIR AND RESTORATION?
3: AUDIO REPAIR AND RESTORATION BASICS
- Defining the Outcome
- Repair and Restoration Tools
- General Recommendations when Repairing or Restoring Audio
- Restoration Quick Tips
- The Tools of the Trade
4: Understanding Spectrograms / Identifying Audio Problems
- What’s the Goal of Using a Spectrogram?
- Principles of Spectrogram Displays
- Spectrogram Types
- Using a Spectrogram to Identify Audio Problems
5: WHAT IS RX 4?
- What Can RX 4 Do?
- Where Can I Use RX 4?
6: DENOISING
- What’s the Goal of Denoising?
- Principles of Denoising
- Using the Denoiser and Hum Removal in RX 4
7: TIPS AND TRICKS FOR EDITING DIALOGUE
- WHAT’S THE GOAL OF DIALOGUE EDITING?
- TIPS FOR TACKLING DISTORTION
- TIPS FOR TACKLING BACKGROUND NOISE (STEADY STATE)
- TIPS FOR TACKLING PLOSIVES AND MOUTH SOUNDS
- Plosives
- Mouth Noises
- TIPS FOR TACKLING MATCHING
8: BROADBAND NOISE REDUCTION
- Hum and Tonal Noise Reduction
- Tonal Noise
- Dialogue Denoising
- General Denoising Tips
9: REMOVING INTERMITTENT NOISES AND GAPS
- What’s the Goal of Audio Repair?
- Principles of Audio Repair
- Using Spectral Repair in RX 4
- Intermittent Noises
- Audio Dropouts
- General Audio Repair Tips
10: REMOVING CLICKS AND POPS
- What’s the Goal of Removing Clicks and Pops?
- Principles of Removing Clicks and Pops
- USING DECLICK IN RX 4
- Analog Clicks
- Digital Clicks
- General Tips for Removing Clicks and Pops
11: REMOVING CLIPPING
- What’s the Goal of Removing Clipping?
- Principles of Removing Clipping
- Using Declip in RX 4
- General Tips for Removing Clipping
12: REMOVING REVERB
- What’s the Goal of Removing Reverb?
- Principles of Removing Reverb
- Using Dereverb in RX 4
- General Tips for Removing Reverb
13: EXPORTING AND DELIVERING AUDIO
- What’s the Goal of Exporting and Delivering Audio?
- Principles of Exporting and Delivering Audio
Exporting and Delivering Audio in RX 4
- GENERAL TIPS FOR EXPORTING AND DELIVERING AUDIO
14: SUMMARY
15: ABOUT THE AUTHORS
APPENDIX A: GETTING SET UP TO REPAIR AND RESTORE AUDIO
- Equipment
- Monitoring Audio
- Transferring Media to the Computer
- Recording from Analog Formats
APPENDIX B: GENERAL RX 4 TOOLS
- Comparing Settings
- Batch Processing
- Waveform Statistics
- EQ
- Presets
- Keyboard Shortcuts
Appendix C: REPAIRING THE INCLUDED AUDIO FILES
- Example 1: Removing Broadband Noise from a Concert Recording
- Example 2: Restoring an Historical Speech: Making Voice More Intelligible
- Example 3: Cleaning up a Phone Interview with Declick and Spectral Repair
- Example 4: Removing Clicks and Pops from a Concert on Record
- Example 5: Removing Clipping from a Phone Interview
- Example 6: Removing Guitar String Squeaks with Spectral Repair
Appendix D: Tips from the Pros
- Bill Jackson
- Steve Levine
- Chris Shaw
- Mike Thornton
- Jason Graves
- Adam Ayan
- Bob Bronow

AUDIO REPAIR

AND ENHANCEMENT

Step 3:

Once your noise reduction is beginning to sound eective, direct your attention to any smoothing ﬁlters

your tool may oer, such as the RX 4 Spectral Denoiser’s Artifact Control slider. Adjusting these smoothing

tools can help eliminate any artifacts and preserve the main goal of improving the listening experience. We

certainly don’t want to make it worse by taking out some noise but adding in artifacts!

HUM AND TONAL NOISE REDUCTION

Hum and tonal noise are usually visible as bright, steady, horizontal lines. Hum and tonal noise look

dierent from each other, and there are dierent methods available for treating them. Let’s begin with hum:

Hum

Below is a screenshot of a recording with hum.

TIP • In order to see which frequencies make up the tonal noise, you can use a spectrogram to view

the audio. This can be much more accurate and easy to read than a spectrum analyzer.