Izotope RX 2 Advance

[Alexey Lukin]

RX is not made for echo removal.
You may have some limited success with the Denoiser module.

There’s no iZotope forum.

[Patti Arrigo]

Do you know of a program that will take care of echo hollow?
This is a problem that will be on going till I find a fix.
Thanks
Patti

[Alexey Lukin]

Echo removal is a hard problem and there’s little software for that. One example is RevCon: https://www.tacsystem.com/en/products/softwares/000563.php

[John Rofrano]

[Patti Arrigo] “This is a problem that will be on going till I find a fix.”

Well… the “real” fhe fix is to get a microphone as close to the sound source as possible. This is where a field recorder comes in handy. (I use a Marantz PMD660) Even better if you can attach a field recorder to the tape outs of the house sounds system. I even have a splitter box that goes between the microphone and the wall in situations where one mic is being used and they won’t give me access to the console. You need to be prepared to record great audio or else you will not get great audio.

Unfortunately, nothing will remove echo or reverb. They are far too complex.

Jeffrey Fisher gives a formula in his book Instant Sound Forge and it may lessen the effect a little but it will still be there. I’ll have to look it up when I get home tonight or you could buy the book. It’s full of excellent sounds editing advice.

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Mike Kujbida]

I grabbed the following tip several years ago but have never personally tried it.
Others that have reported some success with it.

1. Select All, then Copy the audio.
2. Paste to a new track, invert the waveform, and apply moderate compression.
3. Reduce the new track volume so that a preselected “quiet” area is about 50% of the level of its corresponding area in the original.
4. Paste Mix the new track into the old. Renormalize if necessary.

There should be a noticeable improvement in clarity and echo reduction because you have applied negative feedback to the areas where the echo is most objectionable.
Too high a compression or too high level of the feedback track will give a “pumping” effect, however.

[John Rofrano]

[John Rofrano] “Jeffrey Fisher gives a formula in his book Instant Sound Forge and it may lessen the effect a little but it will still be there. I’ll have to look it up when I get home tonight or you could buy the book”

I checked the book when I got home and Jefferey’s method is too long to retype here. What he is doing is using the Sony Paragraphic EQ to cut the lows (100Hz) and highs (10,000 Hz), boost the vocal frequencies slightly (between 1,750 Hz – 3,500 Hz), and then finding the rooms resonant frequency and cutting that drastically. This depends on the room. You sweep for a frequency by first boosting it, then when you find it, you cut it. Then finishing with light compression. You really need to see the examples in the book and read the detailed instructions to see how it’s done (sorry).

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Patti Arrigo]

Alexey thank you for you help.
I do appreciate
Patti

[Patti Arrigo]

Thanks John I ordered this book. I made the mistake of taking the
advice from a man I use to work for. It was wrong and I may have
been part of the problem with the audio I was editing. Hard lesson
to learn.

[John Rofrano]

[Patti Arrigo] “I made the mistake of taking the advice from a man I use to work for. It was wrong and I may have been part of the problem with the audio I was editing. “

What was the advice? Maybe it was good advice but just applied to the wrong circumstances? (sometimes it’s equally important to understand why something didn’t work)

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Patti Arrigo]

OK John I hope I make this clear.
What I do with my tracks.
Effects…dynamic…threshold..(Maybe -4db) to bring down hi peaks more
even audio. Then normalize …then noise reduction. I do that with
all four tracks of audio. (This is what I was told to do.)
What I see is if there is any echo in the room it brings that up with it.
The other problem is….track 1 (my boss) track 2 audience. When my boss is talking I keep the volume down on track 2..when the audience talks I lower track 1. (other wise there is more echo). When they are done taking I bring back up volume on track 1 and lower volume on track 2. There is bleed through when both are talking. John I made a mistake telling my boss that what I might be doing is not right…Now I have been put in a box that says she doesn’t know what she is doing. I have been told to go and ask someone that I know he doesn’t know everything but thinks he does. What a mess this has become. I need to learn this myself so that I won’t be standing in quick sand but on a rock. Human nature is such that when you put someone in a box with a label its tough to get out. Sorry this was so long.