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View Full Version : How to Improve your Mic Quality -- Without Buying a New One!



Tomoyo Ichijouji
09-12-2010, 06:40 PM
When it comes to making high quality productions, mic quality is right up there with just plain being a good actor with what will get VAs cast or not. Simply, if the recording doesn't sound clean, it will sound unpleasant and be distracting in a project, regardless of your vocal skill.

There are various mics out there (http://voiceactingalliance.com/board/showthread.php?t=9236) that people recommend as better/worse in quality, but a lot of them can get up to over $100. In short, replacing mics as a sole way to improve quality can be quite expensive.

Surprisingly, the best way to improve your sound quality if it has been a problem for you -- and most cost-efficient, for those of us with tight budgets -- usually is not your mic itself per se. I've been able to get very good sound quality, that people have personally remarked to me on, out of my Logitech USB Desktop mic (a decent multipurpose mic that goes for around $25), using some prudent set-ups and some cheap additional tools that are easy to put together.

The big things that lower recording quality are: pops/puffs, clipping, static, background noise, and reverb.

Pops and puffs are those loud 'PUH!' sounds that might happen when you say words with 'p' and 'h', where air is 'puffing' out of your mouth. You can make your own pop screen (http://voiceactingalliance.com/board/showthread.php?t=7178) if this is a problem for your mic, but what I did to just about eliminate them from mine was to angle the mic about 30-45 degrees to the side when recording. Your voice goes in all directions but the air puffs go only in front of you, so that way the sound reaches the mic and your breathing doesn't. =D

Clipping (also known as peaking) is when your sound is too loud for your mic, for example when you shout. It distorts the sound so you hear this dull 'scree' sound across your recording. There is no good way to remedy this with sound editing, so if it happens you just have to record again. =x
The way to avoid this, though, is to lower your input level on your mic when you know you're going to be saying something very loudly.
If you have a PC:
Start menu -> Control Panel -> Sounds, Speech and Audio Devices -> Sounds and Audio Devices -> Audio -> Sound recording: Volume; lower this slider for yelling lines, raise it back up for normal lines.
I dunno how to do it for Macs (if someone *does* know, please do post it here!) but it should have a similar setting to tweak.
EDIT:
For iMac Clipping:
System Preferences -> Sound -> Input -> Then select whatever mic you are using and just shift the volume down. There is also a nifty ambient noise reduction that you can use if you want. (<-- thanks lightofhope18!!)
You could just leave the input setting at the lower end all the time, but then quieter lines will have to be amplified a lot more, and that will let any slight static in the recording be magnified (which happens with even the higher end mics). This doesn't matter for yelling because that's already a very strong input, so static will already be minimal.

Static is a bit different from background noise; static is a slight hiss you might hear if you amplify a quiet recording; it's just the ambient noise of the mic recording, period, and it has to either be taken care of by noise removal (which does lower sound quality a little), or by being judicious with sound input as said above for clipping.

If you're working next to your computer, a side note, your mic will pick up the sound of the computer running, and the closer it is, the more obvious it is. D= A trick to this is, get your mic farther away from your computer's buzzing -- but vertically. Putting it farther away horizontally actually isn't quite as effective; if you put it even like an inch or two above your computer's noise factory, it will cut down on it significantly, and the rest you can get rid of by the other methods listed here.

Background noise on the other hand is like a dog barking, construction work outside, paper rustling etc. Noise removal doesn't work so well on those, so like with clipping, you'll need to just rerecord if it happens. D=
Buuuuut, if it's mild enough, you could get rid of it the same way you can get rid of reverb --

Reverb is referring to the echoes your mic picks up when sound rebounds off the walls of your recording space. While slight amounts can be masked, for some scenes like those outside you really want to have as little as possible. Here, your mic isn't the issue: it's your recording space, and that's a little more tricky.
If you happen to have easy access to a walk-in closet with lots of clothes in it where you could record, the clothes and the small room act perfectly as a makeshift sound booth and I got *really* good recording quality from that.
If not (as I don't right now either), take a look at this:
http://voiceoveressentials.com/content/portaboothArticle.htm
Basically, the Porta-Booth will absorb the echo that your voice might otherwise generate before it ever gets out to the walls. This will work even in rooms that aren't the size of a walk-in closet, and you can put it right on your desk next to your computer and it works like a charm.
You can make your own Porta-Booth a lot cheaper than buying it pre-made ($100+ pre-made is totally ripping you off XP ): get one of those fabric storage cubes you might use for a dorm room and line the inside with 2-inch pyramid acoustic foam as it says at that website; you won't even have to attach them, they should be cozy enough to stick in the cube by their own weight.

Here's where I bought my acoustic foam at a great price:
http://www.thefoamfactory.com/acousticfoam/pyramidfoam.html
The 12-pack is the cheapest I can find anywhere online even with shipping costs, and I would love to hear from anyone that can find something better (no I don't work for them, I bought a pack for myself and am already using it, so I can affirm these guys are legit). The total for a homemade Porta-Booth including the price of the storage cube comes out to around $45 or less: much less than what buying a new mic would likely need. =P (Actually, the above I think would be helpful even for those with high end mics, on how to best bring out the quality that those kind of mics can provide.)

If you're looking for some more advice, this thread also has general information on mic quality enhancing as well as other techniques, especially if you're still new to VAing:
http://voiceactingalliance.com/board/showthread.php?t=12345

I should make an addendum, if you're already quite advanced with your VAing technicals and are trying to improve it from something already quite good, then that's where buying a new mic would start doing something for you -- it's the subtle things that new mics improve, not eliminating stuff like clipping and reverb, which mics really can't do much about by themselves.

Any other questions or comments about the above, feel welcome to speak up! ^^

Erica
09-12-2010, 06:59 PM
Thanks! This is great!

xApplicationRainbow
09-12-2010, 06:59 PM
Why? Just why are you so epic? Great post here!

Erica
09-12-2010, 07:13 PM
Haha, you know, I'm pretty tempted to ask around if anyone wants to split the cost of buying a 12 pack of acoustic foam and 2 collapsible cubes from amazon. That would make it like $15 cheaper per person to make a portable booth.

lightofhope18
09-12-2010, 07:24 PM
Erica, I'd totally split that cost with you. :D

For iMac Clipping ::
System Preferences -> Sound -> Input -> Then select whatever mic you are using and just shift the volume down. There is also a nifty ambient noise reduction that you can use if you want.

Tomoyo Ichijouji
09-12-2010, 07:31 PM
For iMac Clipping ::
System Preferences -> Sound -> Input -> Then select whatever mic you are using and just shift the volume down. There is also a nifty ambient noise reduction that you can use if you want.

Thanks a whole bunch!! I've added that to the post. :hug

Erica
09-12-2010, 07:42 PM
Erica, I'd totally split that cost with you. :D




Let me find a financial happy place and then I'll get back to you about it if you're serious XD

Sapphire
09-12-2010, 07:55 PM
Haha, you know, I'm pretty tempted to ask around if anyone wants to split the cost of buying a 12 pack of acoustic foam and 2 collapsible cubes from amazon. That would make it like $15 cheaper per person to make a portable booth.

I would take you up on this. :I

ConVito
09-15-2010, 02:42 PM
Let me find a financial happy place and then I'll get back to you about it if you're serious XD

Hell, I have some extra foam I could just send you. I think it's about 4 or 5 pieces of 24x24 inch, 1" thick. I also have an over-abundance of corner pieces.

Erica
09-16-2010, 01:14 AM
Hell, I have some extra foam I could just send you. I think it's about 4 or 5 pieces of 24x24 inch, 1" thick. I also have an over-abundance of corner pieces.

That would be nice :O

Monotori
09-16-2010, 01:39 AM
Think you'd have some corner pieces left over?

ConVito
09-16-2010, 02:38 AM
That would be nice :O

I'll have to make sure I have what I need to send it, but yeah, if everything works out and I can afford the postage or whatever (I've never sent anything bigger than a letter through the mail, so you'll excuse me for having no idea what I'm talking about) then it should work. I can't promise anything (it was kind of stupid mentioning it when I wasn't 100% sure I could send it), but I'll try my best.


Think you'd have some corner pieces left over?

I have about 13 corner pieces, maybe more, so there should be plenty to go around. Again, I'll have to check and see if I'm actually able to send the stuff. Still can't make any promises, but like I said, I'll try my best.

EDIT: Alright, please don't hate me. I feel like an asshole right now. Turns out I can't afford to send it. God I'm a moron. I should have checked before even mentioning it. I'ma just sulk away in shame now. But first, here's where I got the foam. It was pretty affordable (I had more money then). Might be worth looking into. http://myworld.ebay.com/foambymail/
Again, so sooooo sorry about this.

monisstar
09-16-2010, 04:45 AM
Hey thanks a bunch for putting this up...Really helpful.. :)
I've already made my first reel and I've gotta tell you, it has got a lot of clippings.. :(
Nevermind, I'll use this method for my second demo reel.. :D

Thanks again! ^^

Tomoyo Ichijouji
09-16-2010, 04:51 AM
[s]
EDIT: Alright, please don't hate me. I feel like an asshole right now. Turns out I can't afford to send it. God I'm a moron. I should have checked before even mentioning it. I'ma just sulk away in shame now. But first, here's where I got the foam. It was pretty affordable (I had more money then). Might be worth looking into. http://myworld.ebay.com/foambymail/
Again, so sooooo sorry about this.

Unless I'm mistaken, I think that's the Ebay outpost of The Foam Factory (Foam by Mail (http://www.foambymail.com/) is their other website, it's the same company), so I'm guessing that's why it has a similar great price? =D



Hey thanks a bunch for putting this up...Really helpful.. :)
I've already made my first reel and I've gotta tell you, it has got a lot of clippings.. :(
Nevermind, I'll use this method for my second demo reel.. :D

Thanks again! ^^

I'm very glad it helped! This post's purpose then is being served. ^^

Bgilbert
01-03-2011, 03:15 PM
Which would you say is best for a do-it-yourself portabooth: Wedge or Pyramid foam? I've generally seen pyramid used, but I read on the foamwarehouse ebay site that wedge is better because of larger foam density. Is this true, or only true for larger settings (like studios and the like)

Tomoyo Ichijouji
01-03-2011, 07:22 PM
Certainly the site that tells ya how to do a Porta-booth recommends the pyramid wedge type, which is what I'm using. "Avoid the cheaper but way less effective wedge-type foam", it claims, and I get the idea they're saying the sound is less "dry" than the wedge type, and "dryness" sounds kind of rough or something like that?

Bottom line, pyramid foam seems to sound better, even if the wedge foam absorbs more sound. (Maybe it absorbs sound you'd *want* the mic to pick up? lol, sorry I'm going off of what information I have and understand at this point)

Bgilbert
01-05-2011, 02:09 PM
Certainly the site that tells ya how to do a Porta-booth recommends the pyramid wedge type, which is what I'm using. "Avoid the cheaper but way less effective wedge-type foam", it claims, and I get the idea they're saying the sound is less "dry" than the wedge type, and "dryness" sounds kind of rough or something like that?

Bottom line, pyramid foam seems to sound better, even if the wedge foam absorbs more sound. (Maybe it absorbs sound you'd *want* the mic to pick up? lol, sorry I'm going off of what information I have and understand at this point)


Ah, ok. I got the impression that it was worse because it was less effective, but that makes sence. I'm a bit conserned as the mic will be very close to my computer tower, which has a good amount of hum/fan noise, but it should be fine, I hope, heh.

Ryusuke
01-23-2011, 02:57 AM
Would a cardboard box be a decent substitute for that fabric storage cube?

Tomoyo Ichijouji
01-23-2011, 03:03 AM
Would a cardboard box be a decent substitute for that fabric storage cube?

I haven't tried it, so I don't honestly know from experience, but a fabric cube is basically a tougher cardboard box...if it will fit the acoustic foam you have, I think it should work? (The foam may not stick in there without adhesive if it's not cozy enough though) Putting your mic in a chamber of acoustic foam is the basic idea, ultimately.

Adam
01-31-2011, 01:15 PM
I'm actually purchasing a lot. I'm using a lot of the other foam on there, the ceiling tiles, sound barrier foam and others to turn my damn closet into a booth. So I'm already on a budget for this, but I'm going to be getting a lot of foam. So I'll just use this opportunity to see who else would like in or some.

I will be more than happy to get some extra and send it to anyone. Just let me know, I'm aiming to start putting my order together this week.

Elfee
02-16-2011, 08:39 AM
Wishing i read this last night - could have helped save the clumps of hair i was pulling out with the puffs last night. now looking into popscreens to see if it helps.

thanks :D

caffine
05-23-2011, 06:44 AM
Pops and puffs are those loud 'PUH!' sounds that might happen when you say words with 'p' and 'h', where air is 'puffing' out of your mouth. You can make your own pop screen (http://voiceactingalliance.com/board/showthread.php?t=7178) if this is a problem for your mic, but what I did to just about eliminate them from mine was to angle the mic about 30-45 degrees to the side when recording. Your voice goes in all directions but the air puffs go only in front of you, so that way the sound reaches the mic and your breathing doesn't. =D

Some EQ can also help with P's, B's and Q's (and others) being to loud. You can also set a compressor on the track that will reduce the volume of the syllables while leaving the normal sections untouched. I usually put a compressor on main vocal sections anyway to level everything out. While it is best to eliminate them I would suggest simply pulling away from the mic slightly when saying words that have hard sounds in them. If you do have them though, compressors and EQ's are your friend.



Clipping (also known as peaking) is when your sound is too loud for your mic, for example when you shout. It distorts the sound so you hear this dull 'scree' sound across your recording. There is no good way to remedy this with sound editing, so if it happens you just have to record again. =x

Actually, it is possible to fix clipping in audio. Obviously if it's peaking all the time you need to adjust your mic trim but if you have a section where it briefly peaks you can fix it. Bomb Factory Essentials Clip Remover actually works pretty decently.




If you're working next to your computer, a side note, your mic will pick up the sound of the computer running, and the closer it is, the more obvious it is. D= A trick to this is, get your mic farther away from your computer's buzzing -- but vertically. Putting it farther away horizontally actually isn't quite as effective; if you put it even like an inch or two above your computer's noise factory, it will cut down on it significantly, and the rest you can get rid of by the other methods listed here.

Also, turning your microphone so that your computer is not within the pickup pattern of your microphone will help a lot. You just have to know the pickup pattern (More info here (http://en.wikipedia.org/wiki/Microphone#Microphone_polar_patterns))

Tomoyo Ichijouji
05-23-2011, 07:38 AM
Some EQ can also help with P's, B's and Q's (and others) being to loud. You can also set a compressor on the track that will reduce the volume of the syllables while leaving the normal sections untouched. I usually put a compressor on main vocal sections anyway to level everything out. While it is best to eliminate them I would suggest simply pulling away from the mic slightly when saying words that have hard sounds in them. If you do have them though, compressors and EQ's are your friend.

I've actually used a High Pass Filter if it's just this briefest incident in a recording; yes you can hear a difference if you listened reaaaally carefully, but I'm sure people wouldn't know if they weren't listening for it =P Pulling away directly doesn't do all that much good actually; it's going at an angle that gets rid of it more cause the air flow from your mouth is directed away (moving away from it will still leave it in the path of your breath)




Actually, it is possible to fix clipping in audio. Obviously if it's peaking all the time you need to adjust your mic trim but if you have a section where it briefly peaks you can fix it. Bomb Factory Essentials Clip Remover actually works pretty decently.

Huh, I haven't heard of that one before...I'm doing most of my audio work in Audacity (I'm trying to find something else to mix with but I'm avoiding the really pricey programs), so there's nothing that comes with it that does a decent job. I did a quick search and that plugin appears to only be for Pro Tools, so even though the plugin's free the program that can use it isn't =|a




Also, turning your microphone so that your computer is not within the pickup pattern of your microphone will help a lot. You just have to know the pickup pattern (More info here (http://en.wikipedia.org/wiki/Microphone#Microphone_polar_patterns))

My old microphone doesn't even specify its pickup pattern, being a cheap Logitech Desktop USB one that is meant more for chat than actual voice work (though I've managed until now with the techniques I mentioned); I'm guessing that I must have done what you said unknowingly since perhaps along the Y axis it had a smaller area of pickup and I just didn't know it till I tried? =|a It seems I don't have to worry about that anymore with the CAD U37 I got which says it's cardioid and like you said my laptop appears to be out of its recording pattern being on the far side of it; however, I think many of the cheaper mics don't specify this so the question would be what the pickup pattern is in the first place. 6_6

caffine
05-26-2011, 12:36 AM
I think many of the cheaper mics don't specify this so the question would be what the pickup pattern is in the first place.

The standard and most common pickup pattern in cardioid so it's safe to assume that it's cardioid. It will either be that or omnidirectional.

Tomoyo Ichijouji
05-26-2011, 01:19 AM
The standard and most common pickup pattern in cardioid so it's safe to assume that it's cardioid. It will either be that or omnidirectional.

I'm guessing it probably was in cardioid, because it was even built to pick up in one direction (the tip curves to one direction with the mic inside the tip). But, even though my laptop was 90 degrees away from the Logitech, it still picked up if I didn't use a Porta-Booth or some kind of soft-lined container (like a full laundry basket, lol), it would still be a noticeable hum in the recording; evidently its cardioid pick-up still isn't strong enough to eliminate my laptop noise at the distance it was at without me lifting the mic a little.

I'm liking the fact that the CAD seems to really not care whether it has laptop noise at all, so long as it's at the side; this is particularly good for me now because my laptop's fan is starting to get pretty rickety and so is infuriatingly noisy, but the cardioid pick-up on it makes it a moot point, unlike my ole Logitech which I'm sure I couldn't get away with. (I'm still keeping the Logitech as my travel mic though; it still works great, and I'm less concerned about breaking it in the luggage, that thing's held up for a few years now)

Linamanu
06-20-2011, 09:50 AM
Hey there, thank you for this information resume writing!