Utterly clueless, need help with "swishy" noise problem

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Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by DisasterKari » Tue Feb 06, 2018 7:12 pm

Hello, I have no idea what I'm doing...
I'm trying to record a podcast using a Marantz Professional MPM1000 Large Diaphragm Condenser Microphone with Windscreen, Shockmount, Tripod Stand and XLR Cable but I'm having real trouble with the sound quality. It sounds "swishy" and I have no idea how to fix it.
I'm using Windows 7 and audacity version 2.2.0. I was very careful to make sure that none of the cables cross each other because I read somewhere that could cause an issue.
I'm recording at home, and there is local traffic noise so I have the microphone inside a large cardboard box with a blanket draped over it. Should I be setting up padding or something inside the box as well?

The last recording is here: https://www.dropbox.com/sh/vbwqbtiyklw9 ... 1OkOa?dl=0 (please ignore the silly person shouting in the background, he knows he's getting edited out)
Any tips you can offer on how to improve my setup, what settings I ought to be using, what effects I should or shouldn't use, etc would be gratefully received (especially if you can dumb them down for me... I'm not very technical.)
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Re: Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by kozikowski » Tue Feb 06, 2018 7:22 pm

I'm having trouble getting your Project. It's possible DropBox doesn't "know" what those filetypes are. Please Export a WAV (Microsoft) of the work and post that.

However, even without hearing it, Windows, left to its own devices will try to help you by applying voice processing. The voice itself may sound OK, but the background noises and even your breathing sounds may turn into whispering into a wine glass or rain barrel.

There are some standard places to look for that setting.

http://manual.audacityteam.org/man/faq_ ... hancements

Most people want to chat or business conference and it's good to have the system suppress the noise behind you, but it's less handy if you're trying to produce a stand-alone show.

Koz
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Re: Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by kozikowski » Tue Feb 06, 2018 7:27 pm

a Marantz Professional MPM1000 Large Diaphragm Condenser Microphone with Windscreen, Shockmount, Tripod Stand and XLR Cable

Nothing wrong with any of that, but what did you plug the XLR cable into? There are no XLR connections in most computers and the computer connection causes a lot of troubles.

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Re: Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by DisasterKari » Tue Feb 06, 2018 7:34 pm

I've put a WAV in the dropbox folder as well now, thanks.
I have a Stagg SAC1MPSX Minijack 3.5mm to XLR Female Balanced Audio Cable to connect to the computer with.
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Re: Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by kozikowski » Tue Feb 06, 2018 7:46 pm

Doesn't that microphone take phantom power? Is there a box you plugged in and forgot to mention?


viewtopic.php?p=333031#p333031

Compare that to the home-made cable I produced to do the same job.

Image

Note my adapter only has one dark band on the 1/8" plug.

You can get into all sorts of trouble if your 1/8" plug has two dark bands.

I will download and listen to your work. That may tell me if you're going to have problems.

Remember this is a forum not a help desk, so I may need to drop out and play Real Life here and there.

Koz
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Re: Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by steve » Tue Feb 06, 2018 7:48 pm

Your recording level is far too low. Turn up the recoding level and get really close to the mic (use a "pop shield" to avoid wind blast)

Also, check that all Windows "sound enhancements" are off? (see: http://manual.audacityteam.org/man/faq_ ... hancements)
It sounds like "noise cancellation" or "echo cancellation" is being applied.

Also, set recording to "1 channel (mono)".
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)
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Re: Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by kozikowski » Tue Feb 06, 2018 8:01 pm

Closer.

Apparently, this is going to take the rest of the afternoon to download. Can you cut and post a minute or 30 second clip and post that. Make sure the cutting has the damage.

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Re: Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by DisasterKari » Tue Feb 06, 2018 8:14 pm

kozikowski wrote:Doesn't that microphone take phantom power? Is there a box you plugged in and forgot to mention?


Yes sorry, that's an InnoGear I229

kozikowski wrote:You can get into all sorts of trouble if your 1/8" plug has two dark bands.


Oh. It does. What does that mean?
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Re: Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by kozikowski » Tue Feb 06, 2018 8:49 pm

I'm flying blind until I hear the work.

Apparently, I'm trying to download the entire half-hour show in WAV. Can you cut down, like select the first minute and File > Export Selected?

I don't have the best internet connection. I have to go out every so often and shoo the birds away from the wires to keep it going.


On some production soundcards, that "devil's adapter" can produce an odd sound file with the left and right sound out of step with each other. In addition to all the other problems called out by Steve above, you could have a show which will not play on mono players or music systems that mix down to mono and don't tell you.

It's particularly evil because if you send a show to five clients, for example, one or two may write back that you sent them a silent show. The others are just fine with it.

???

You can go round and round for days trying to figure out what's happening. It's a damaged sound file that's not obviously damaged.

I listened to a podcast a day or two ago that was recorded with this damage. On my music system, the performer sounded like she was standing behind me. That's another oddity of this problem.

I'm on the edge of my seat.

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Re: Utterly clueless, need help with "swishy" noise problem

Permanent link to this post Posted by DisasterKari » Tue Feb 06, 2018 9:05 pm

There should now be a file called "SF 1906 take 3 clip" in the dropbox folder I linked earlier, that's just the introduction.

If it's this "devil's adapter" thing, what would be the solution? Would an XLR to USB cable be better?
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