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.wav normalizer

Would anyone have suggestions for a .wav normalizer? This is for a radio reading service for the blind. There is some music but it's primarily spoken word and everything's in mono. Different program sources make a situation where levels are all over the road...and that's the case even though I'm using an Omnia One Livewire to process.

I use .mp3 Gain and it's been quite useful. I just need an equivalent for .wavs.

Thanks for any help help.
 
Have you considered a hardware solution like an Orban Co-operator, Aphex Compellor or other box?
You could try Audacity too.
 
I would prefer a hardware solution like the ones you mentioned, NHRadio . But unless we receive an unexpected grant this year, they'll have to stay on my wish list. I was hoping there might be software under $100 or so that I could pay for myself.

Of course, if anyone has a box gathering dust, I promise my executive director will send a letter of receipt for a donation. I know...dang non-profits always looking for a hand out! :D
 
You might consider Sound Solution, if that is still around. It's a DSP broadcast processing emulation program that interfaces with programs like WinAmp. If you are able to make it work then the price is right.
 
ChiefOperator said:
Here is the software you need. It's free. You just simply drag-n-drop the file into the program and it will level the program material. Free, effective, and simple :))

http://www.conversationsnetwork.org/levelator
+1 for the Levelator. Drag and drop operation for WAV files and does a perfect job getting things just right for spoken-word/talk material. When I worked as a board op playing back church services, I started running the files through the Levelator and got many compliments on the improvement of sound quality. What they didn't know is I no longer needed it sit there with my finger on the pot moving it every 5 seconds! ;D
 
Thank you for this link! I have played with a lot of audio processing programs and most of them do not live up to their claims.

I haven't tested LEVELATOR thoroughly yet, but I just threw an hour-long recording of a church worship service at it and I am amazed with the output. (That is not a fair test. In reading their technical info, their goal is working with spoken word.... commentaries, interviews, panel discussions. I thought it did a pretty good job of dealing with the assortment of music and other elements I threw at it.

I did throw one "test" at it that produced strange results. I took a sermon which I had processed... some automation using Adobe Audition processes... and a lot of manual manipulation editing. My file was close to perfect when it comes to constant gain and peaks. LEVELATOR turned it into bargain hamburger! I may engage the writers of LEVELATOR in some conversation on that. Do they know when NOT to use LEVELATOR? My first step in hand-processing spoken word audio is to use the Noise Reduction process to remove the ambient noise that exists between syllables. Does doing that mess up LEVELATORS algorithm? Curious Minds Need to Know! The LEVELATOR website does contain an excellent description of what they set about to do, and some information about the difficulties of measuring loudness.
 
Not free, but a good program (and relatively easy to use) is Sound Forge audio studio, which is in the $45~60 range ($43 on Amazon). Doesn't have all the effects of its big brother, but it does have a normalize function.
 
TomT said:
Doesn't have all the effects of its big brother, but it does have a normalize function.

The original post probably should have used a different work in naming the subject. A pure "normalizer" will not do what he is asking for. He is really needing some compression, some limiting. If the file is only normalized, then the loud part will still be louder than the soft parts. The volume will continue to go up and down through out the segment.
 
Yes, if he is talking real time, then probably only an outboard box would work. Typical normalizing function would be fine if he is talking out editing down a recorded program.

Local Class D FM uses a Behringer compressor ahead of an 8000. Seems to work for evening out levels, doubt it costs much. Don't know how reliable it will be long time.
 
Even in "editing down a recorded program" a normalizing process will not get the job done. One plosive in the mic or a couple of those little "lip smacks" that some people throw in for free will set the volume for the rest of the content way, way down.

You could go through manually and "select" 15 seconds of content, and normalize that selection. Then select the next 15 seconds and normalize. Then select the next... you get the picture. The result can be quite choppy and abrupt in places. And that is a very MANUAL, time consuming process.
 
Thanks for all your ideas. I've been away a couple of days and was surprised at all the suggestions when I logged in tonight.

The original post probably should have used a different work in naming the subject.

Yes, I should have used a different word than normalizer. I had Adobe Audition open at the time and that's what stuck in my mind.

Here is the software you need. It's free. You just simply drag-n-drop the file into the program and it will level the program material. Free, effective, and simple

I do use the Levelator and I wish I would have known about it back in commercial radio days. Would have made life so much easier.

Thank you for this link! I have played with a lot of audio processing programs and most of them do not live up to their claims.

Goat Rodeo Cowboy, you're going to get a lot of use out of it. I use it on everything our volunteers read and it works like a charm.

You could go through manually and "select" 15 seconds of content, and normalize that selection. Then select the next 15 seconds and normalize.

That's what I used to do before Levelator. Very time consuming.

I did throw one "test" at it that produced strange results.

I work with a whiz kid who who told me what she does and it seems to help. We have an older volunteer who for the longest time would not use a computer. Since she's a dependable, long-term volunteer who does all the Sunday school stuff, we let her record onto a cassette deck. To reduce noise, she would run Levelator first. Then after, use Auditon's Noise Reduction. Her settings are:

Noise Reduction Level: 100. Reduce by 100 dB. Precision Factor: 7. Smoothing Amount: 1. Transition Width: 0 dB. Spectral Decay Rate: 0%. FFT Size: 4096 points. "Remove noise" option selected.

We finally got the volunteer to not be afraid of computers. But I still use it to reduce "mouth noise" that some of our volunteers have. With her experiments she said it was running Levelator first that was the key. I hope that's helpful.

Yes, if he is talking real time, then probably only an outboard box would work.

TomT, I think you're right. I need something coupled with the Omnia. I checked eBay and saw an assortment of Aphex Compellors. Some looked like they were good deals but I don't know enough about the different models. I just recognize the models that I've seen used in the past. It also brings up the question of is it a good deal or is it buying somebody else's problem?
 
The Compellors are pretty much bulletproof.

Have you tried speeding up the release time on the wideband AGC on the One? Or driving the AGC harder into gain reduction on average? You should be driving it to at least -10dB on average program material.
 
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