User Manual
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
- 4: Understanding Spectrograms / Identifying Audio Problems
- 5: WHAT IS RX 4?
- 6: DENOISING
- 7: TIPS AND TRICKS FOR EDITING DIALOGUE
- 8: BROADBAND NOISE REDUCTION
- 9: REMOVING INTERMITTENT NOISES AND GAPS
- 10: REMOVING CLICKS AND POPS
- 11: REMOVING CLIPPING
- 12: REMOVING REVERB
- 13: EXPORTING AND DELIVERING AUDIO
- Exporting and Delivering Audio in RX 4
- 14: SUMMARY
- 15: ABOUT THE AUTHORS
- APPENDIX A: GETTING SET UP TO REPAIR AND RESTORE AUDIO
- APPENDIX B: GENERAL RX 4 TOOLS
- 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
11
AUDIO REPAIR
AND ENHANCEMENT
RX TIP • Using RX 4 document files and saving module-specific presets can save you the trouble of
writing out all of the parameters on a recall sheet as you would in the analog domain.
5. Back up your work—the first and last rule of any audio editing project! You never know when
a hard drive, backup device, or original master might fail. Again, always back up your work!
THE TOOLS OF THE TRADE
In the following chapters, we’ll briefly examine some of the essential audio repair and restoration tools.
This isn’t meant to be a comprehensive guide, but will hopefully give you some focused thoughts about the
tools and their uses.
Every noise is dierent, so a certain element of trial and error will always remain. As you continue to learn
by experimenting with dierent tools and processes, you’ll be able to refine and optimize your techniques
over time.