Soften Harsher Sounds

Effects, Recipes, Interfacing with other software, etc.
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steve
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Re: Soften Harsher Sounds

Post by steve » Sun Jun 08, 2008 11:07 pm

jan.kolar wrote:...Does that mean we should advice Mag to get 1.3.4 if he wants to give a try to EQ?
My personal preference is for Audacity 1.3.4 - but that is just my personal preference, based on the fact that it has many improvements over 1.2.6, there seem to be very few bugs in it, and it works very well on my machine. I've had a few minor issues with 1.3.5, so I prefer to stick with 1.3.4 until the next version comes along.
kozikowski wrote:You encoded the MP3 at too a low a bitrate, so in addition to the harsh presentation, we also have MP3 bubbling damage and it's difficult to separate them.
Agreed, it would be virtually impossible to do a good repair on that. Any chance you could post the clip as a WAV or FLAC file?
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Mags
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Re: Soften Harsher Sounds

Post by Mags » Mon Jun 09, 2008 4:42 pm


Thank you for all the advice.

I've been working on getting a better recording. Musician suggested putting a soft toy between me and microphone, so have tried that. Also softening my S's as I say them.

And it is 320 bitrate now.
http://www.mags-scorey.pwp.blueyonder.c ... 20Part.mp3

Be glad of comments...

Thanks, Mags

Oh I've only just noticed steve's comments. I recorded it as a 320 bitrate MP3 file ... !!

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Re: Soften Harsher Sounds

Post by kozikowski » Mon Jun 09, 2008 5:18 pm

I'm still going with something broken. From the pictures can we assume you're working with a Mac?

=============================
Pristine 24-Bit Recording to Go
Over the past year, EDIROL sold a staggering number of R-1 and R-4 recorders, making “Portable Recording” one of the most successful product categories in the company’s portfolio. Now comes a new addition to the red-hot lineup: the R-09. Building on the success of the R-1, the R-09 takes many of the most desired features — 24-bit uncompressed recording and a built-in stereo mic — and shrinks it all down into a more streamlined, stylish, and affordable package.
============================

Can you pull the recording into your machine and play it in QuickTime Player instead of Audacity? Audacity doesn't always get along well with 24-bit sound on Macs.

Another item, this is a stereo recorder. You need to be dealing with these microphones, not this microphone.
Are you mixing down to mono or do you get the machine to give you a mono-mix? That could be where the odd tonal response is coming from.

And I don't totally agree that electret microphones automatically accentuate high frequencies. The built-in microphone on Mac laptops is an electret and the microphone on both Radio Shack sound analyzers and the 3013 microphone are all electrets, with no obvious damage.

Koz

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Re: Soften Harsher Sounds

Post by kozikowski » Mon Jun 09, 2008 5:21 pm

OK. Never mind. It's in stereo.

It is a puzzlement.

Koz

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Re: Soften Harsher Sounds

Post by Mags » Mon Jun 09, 2008 5:36 pm

I use an ordinary PC, not a MAC, does that help...


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Re: Soften Harsher Sounds

Post by kozikowski » Mon Jun 09, 2008 6:17 pm

Try this. From 13 seconds to 22 seconds I applied a special equalization curve. The beginning and end of the performance are untouched.

http://www.kozco.com/audacity/DrumbeatFireEq3.mp3

If that works for you, I can figure out how to send you the curve. This should be possible. I did it in 1.3.5b.

Koz

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Re: Soften Harsher Sounds

Post by steve » Mon Jun 09, 2008 7:29 pm

kozikowski wrote:And I don't totally agree that electret microphones automatically accentuate high frequencies. The built-in microphone on Mac laptops is an electret and the microphone on both Radio Shack sound analyzers and the 3013 microphone are all electrets, with no obvious damage.
Ah, my earlier comment .... ""small diaphragm electret" microphone capsules, which can be prone to over emphasizing sibilants."
"...can be prone to..."
not
"they do".

I have a Zoom H2, which I believe also has these kind of microphones, but I've not had any problem at all with over emphasizing sibilants from it. However, compared to my trusty SM58, the sound is a lot brighter. What I was meaning to say was that certain microphone suit certain kinds of voices. Having heard this recording, I would not choose to go for an SM58, but would prefer something with a cleaner crisper response, but preferably still retaining some warmth. An AKG C3000 would do very nicely, but at over $400 a throw, perhaps not.

I think it should be possible to get some very nice recordings with the Edirol, but first we need to get to the root of the matter.
Mags wrote:Musician suggested putting a soft toy between me and microphone,
I'm sure that would be very comforting, but perhaps positioned a little to the side as it's not likely to improve the sound, just make it dull.

The problem here is not what you need that you've not got, but what you've got that you certainly don't need.
kozikowski wrote:I'm still going with something broken.
Absolutely - there's something wrong here - listen to the gaps between the talking - there's one clear gap just over 6 second into the clip, but in all the other gaps, that strange swirling metallic kind of sound.
Mags wrote:Oh I've only just noticed steve's comments. I recorded it as a 320 bitrate MP3 file ... !!
No problem, that was just so that we could eliminate the mp3 compression artifacts from the picture. At 320 kbps I bet it sounds identical to the original wav file.

So if it's not the mp3, where is all that swirling coming from?

My guess is that it's a combination of things, but the underlying problem here is noise!

It sounds to me like a combination of mp3 artifacts and noise removal artifacts.

Record in a quiet room, and get a good level on the recording. The quieter the recorded signal, the more prominent any noise will be. Use high quality for the original recording, preferably WAV format. Also avoid re-encoding mp3's whenever possible - use wav files throughout, and just convert to mp3 at the very end if you need to (for the internet or e-mail)

Had this been a completely clean recording, I suspect that there would have been little more than a hint of over emphasis in the high frequencies, that could easily be tamed with just a touch of Eq. but what we have ended up with is a mixture of "ss's" and "efs" electronically blended with hiss and weird acoustic artifacts.

With a bit of effort the recording can be cleaned up a bit, but it will be a poor mans trade off.

Get the recording levels up higher, get the background noise down, record at high quality and most of the problem will just disappear. Careful microphone placement (experiment as much as possible, try resting the mic on a pillow, hanging from a lampshade right in front of your nose, everything you can think of), and a nice cup of tea (or whatever your tipple) to keep the mouth fresh, and you are almost there. Then finally, for the subtle finishing polish, just a hint of tweaking in Audacity.

Anyway, I notice that I'm rambling, and koz has made about 6 posts while I've been typing, so good luck, I'm going to have a read of kozikowski's pearls of wisdom now.
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Re: Soften Harsher Sounds

Post by Mags » Mon Jun 09, 2008 7:31 pm



I'll go away and think about the recording methods ... pity about the fluffy cat between me and microphone .. or was she (the musician) joking? Have avoided WAV files in past, because they're rather large, but will try that.

Mags
Last edited by Mags on Mon Jun 09, 2008 8:00 pm, edited 1 time in total.

steve
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Re: Soften Harsher Sounds

Post by steve » Mon Jun 09, 2008 7:42 pm

Nice job koz :)

A nice big screen shot of your settings will probably be a good guide.

Oh, and one last thought Mags, if you try the microphone very close up near your face, then something between you and the microphone can help prevent you from inadvertently blowing on the mic. An old stocking stretched over an opened out coat hanger works well.
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Re: Soften Harsher Sounds

Post by kozikowski » Mon Jun 09, 2008 8:29 pm

Let's see how complicated we can make this.

I posted my Audacity 1.3.5b equalization preset file to my web site.

http://www.kozco.com/audacity/EQCurves.xml

I got it from this Mac...

/SystemDrive/Users/koz/Library/Application Support/audacity/EQCurves.xml

I have no idea where it is on a PC.

Koz

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