Room Noise Floor -59.6DB Argh! [SOLVED]

Narrating and Producing Audiobooks.
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mudskippa
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Re: Room Noise Floor -59.6DB Argh!

Post by mudskippa » Sun Mar 26, 2017 6:25 pm

Thank you Koz. Extra sugar for you for all the energy you've spent helping me :P Yes, I don't see what I can do about the Yeti course. My computer only takes USB mics.

mudskippa
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Re: Room Noise Floor -59.6DB Argh!

Post by mudskippa » Sun Mar 26, 2017 6:36 pm

One quick note about my USB ports. I have a superfast one and a normal one.

I just ran a quick room test recording on audacity using a headset. Plugging it into the normal USB, rather than the superfast one creates a much better noise floor than the superfast one. I was definitely recording on suoerfast before. I'm assuming that would be the same for the yeti and make it a little less rumbly :)

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Re: Room Noise Floor -59.6DB Argh!

Post by kozikowski » Sun Mar 26, 2017 7:55 pm

My computer only takes USB mics.
USB Interfaces. We have a preference for a USB interface and a "regular" microphone over a USB microphone. USB microphones, the Yeti in particular, takes manufacturing shortcuts with the goal of making the microphone inexpensive. The model was/is a big success, but a significant fraction of users complain of data screech leaking into the sound. There is no hardware fix and the problem can efficiently kill high quality production. Until recently, there was no software fix, either.

It doesn't matter how many times it says "Professional" and "Studio" in the title, if you have frying mosquitoes behind your performance, that's pretty limiting.

The ACX training video has a USB interface and a very high quality analog microphone.

Fast Track Solo interface
Rode NT1a microphone

~~

You got very close to the suite I picked.

EQ: LF Rolloff filter around 5000 (5015)

Run Nyquist Prompt – OK (SetRMS: Target RMS -20.00, Linked Stereo > OK)


Run Nyquist Prompt again with the programming from YetiCurse.txt (attached).
You can use Nuyquist Prompt Save and Load to quickly switch back and forth between the two programs, so you don't have to constantly copy and paste.


Limiter: Soft Limit, 0.00, 0.00, -3.50, 10.00, No > OK

Apply Noise Reduction
— Drag-select Room Tone, silence or the flat area between spoken phrases.
— Effect > Noise Reduction: Profile
— Select the whole clip or show by clicking just above MUTE.
— Effect > Noise Reduction: Settings 6, 6, 6 > OK


I picked a Noise Reduction setting of 9, 6, 6. It's a little stiffer reduction and it helps further suppress what I'm guessing is heating or climate control "stuff" in the background.


The last filter, that Yeti Curse thing is the programming and development version of noodling on a paper napkin with a felt-tip-pen. It's very 'how quickly can you write a program?'

"Here, try this [noodle, noodle, noodle]. Let me know of it helps."

It did.

Koz
Attachments
YetiCurse.txt
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kozikowski
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Re: Room Noise Floor -59.6DB Argh!

Post by kozikowski » Sun Mar 26, 2017 8:05 pm

Oh, right. We're not done yet.
Yes, you can suppress harshness in your voice with yet another effect.

There is a custom De-Esser and De-Clicker tool and any second now I'm going to find it......

Koz

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Re: Room Noise Floor -59.6DB Argh!

Post by kozikowski » Sun Mar 26, 2017 8:25 pm

http://forum.audacityteam.org/viewtopic ... t=De+Esser

You want the De-Esser.

I have no hands-on with his. Read through the notes. There are restrictions.

I thought you sounded fine. Note once you change your correction suite, you need to stick with it through a book. ACX puts a high value on consistency.

~~

Back to the Projects. I think it's forbidden to Copy and Paste AUP files from anywhere to anywhere else, and it is required that each AUP file be in the same location or folder with it's associated _DATA folder. It is absolutely forbidden to change the name of either one.

http://manual.audacityteam.org/man/auda ... jects.html

Koz

mudskippa
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Re: Room Noise Floor -59.6DB Argh!

Post by mudskippa » Sun Mar 26, 2017 8:40 pm

Thank you so much Koz. I just ran your entire process, changed to have Yeti.txt and the 9,6,6 noise reduction on my sample. The Peak and RMS are exactly the same, but the noise floor is down a few notches :D That's great.

I will have a look into the Rode and Fast Track solo interface, as I want to produce more recordings in the future, and it would be great to have higher quality from the start.

Any objections to the Behringer U-PHORIA UMC202HD USB Audio Interface? I really don't know much about tecchy stuff.

I'm assuming the Rode mic would need a stand? Not sure how I'd fit that into my recording space!

I'll have a look at the De-Esser too.

Your help has been so invaluable. Really, I mean that. Thank you a million times :D

mudskippa
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Re: Room Noise Floor -59.6DB Argh!

Post by mudskippa » Sun Mar 26, 2017 8:41 pm

Oh, yes and lesson hard-learned re. aup projects. I'll export to WAV and keep a copy from now on in!

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Re: Room Noise Floor -59.6DB Argh!

Post by kozikowski » Sun Mar 26, 2017 9:30 pm

Behringer U-PHORIA UMC202HD USB Audio Interface
I have thoughts. You have the luxury of recording with a single channel USB microphone. I have a Behringer U-Phoria UM2 which I rather like and ACX recommends the Fast-Track Solo. All of those are single channel interfaces. They mount to the computer in mono and will easily record one blue wave when you speak.

The Fast Track Solo's real name is Avid Fast Track Solo. It's designed to connect to an Avid video editing station and can have troubles with home computers. That's the heritage on its father's side.

People have posted troubles getting two-channel interfaces to Stop recording in Stereo. You get two blue waves no matter what you do (your voice on only one of them) and the only other option being an odd mixture of the two, effectively raising the background noise.

It's certainly possible to record in stereo, split the performance into two individual ones and delete the one you don't want.

It's only extra work. Someone will post about that. I think that's still the case.

I have a Koz Aphorism: "If you find something that works, hold onto it with white knuckles."

Koz

mudskippa
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Re: Room Noise Floor -59.6DB Argh!

Post by mudskippa » Sun Mar 26, 2017 9:47 pm

Thank you for your input on this. I don't have much money to spend, but don't want to pick the wrong thing. The Behringer U-Phoria UM2 is affordable and that means splashing out on a Rode mic won't be so bad, Just slightly worried about fitting the mic kit into my recording space. The Yeti obviously comes with its own little stand, so I have put it on some of the piled-up boxes in the store-room and covered them with a blanket (so professional!)

I really appreciate all you have helped me with here, Koz. I would have been completely lost without your help :)

kozikowski
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Re: Room Noise Floor -59.6DB Argh!

Post by kozikowski » Sun Mar 26, 2017 10:20 pm

I have put it on some of the piled-up boxes in the store-room
That's one of the recommended installs.

Image

The blue furniture moving pad keeps desk echoes and slap reflections down, the towel and the book in combination keep floor and desk vibrations from the microphone.

Grownups do it with a shock mount.

Image

The diagonals in the picture are rubber bands and they suspect the microphone away from vibrations and movement. It's a common mistake to use a tight microphone cord and then have noises travel up the cord.

You can use a modest tripod behind or to one side of you. I don't have a picture of that, but this is a shoot I did with the tripod on the table instead of the floor.

Image

When I do experiments in my quiet room, I don't have room for the tripod in front, either. The actual tripod is by my left elbow during recording. It doesn't have to be in front.

Suspending the microphone is highly recommended because it gives you room to shuffle scripts and tea.

Also see that little tennis racket thing in front of the microphone. That's a pop and blast filter to keep your P! sounds out of the show. Here it is again.

Image

Koz

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