1-Minute Test SKwanlada [OK]

All languages: post your test recording here. Help check audio files, provide editing services, and advertise for proof-listeners.
Post Reply
SKwanlada
Posts: 66
Joined: October 9th, 2017, 11:42 pm

Post by SKwanlada » March 27th, 2020, 6:49 pm

https://librivox.org/uploads/tests/test_skwanlada.mp3

Here is the test file. I recorded this with the Airpods 2 using Hokusai on iPad OS, then converted to mp3 using Audacity on MacOS. I couldn't record directly into Audacity for some reason.

This file is unprocessed, as suggested in the 1-Minute Test wiki page, but I think I can edit and remove the noises etc. in Audacity. Any suggestions welcome!

TriciaG
LibriVox Admin Team
Posts: 47870
Joined: June 15th, 2008, 10:30 pm
Location: Toronto, ON (but Minnesotan to age 32)

Post by TriciaG » March 28th, 2020, 8:01 am

Welcome!

I've heard of people having problems setting up Audacity with Catalina. It sounds like you've developed a workaround - as long as it is convenient to record corrections to a file, if/when you need to do that. :)

Wow - that's a lot of noise. I don't think Noise Reduction will clean that up enough without affecting your voice in the recording. :?

Are you in a quiet room?

First, try turning off any extra nearby equipment that you don't need - printers, fans, fluorescent lights, etc. Try to eliminate as much noise at its source as you can, before it gets to the microphone. Imagine dead silence (totally dead), then listen to your recording area and figure out what is making sounds that your mic is picking up.

At the end of the recording, there's the background noise level that is the same through the recording, and then at about 34 seconds it drops off considerably. Any idea why it did that? If we could get the noise to that level to start with, it would help a lot. :)
Mystery/PulpFic: Dope, by Sax Rohmer
The one that started them all: Self-Help, by Samuel Smiles
Elizabethan Poetry: The Psalmes of David
Boring works 30-70 minutes long: Insomnia Collection 5
Short essays: Elia, and The Last Essays of Elia

SKwanlada
Posts: 66
Joined: October 9th, 2017, 11:42 pm

Post by SKwanlada » April 10th, 2020, 7:48 pm

Hi! I’m finally back!
It was hard to find really quiet places in the house, especially when everyone is stuck inside all day. This is the best I could find....I think it’s far better than last time. Here it is!

https://librivox.org/uploads/tests/test_skwanlada2.mp3

Also, I have no idea how the background noise dropped suddenly in the last file, it was pretty constant when I was recording.... But nevertheless I changed my location, so I guess it wouldn’t matter so much?

And thank you for you kind feedback!

TriciaG
LibriVox Admin Team
Posts: 47870
Joined: June 15th, 2008, 10:30 pm
Location: Toronto, ON (but Minnesotan to age 32)

Post by TriciaG » April 11th, 2020, 6:31 am

This does seem to be a bit better.

Your volume is a little high on this one. If you are uncomfortable trying to adjust the input volume, you could just amplify the whole thing by -4 (minus 4) dB.

While there is still background noise, it seems to clean up pretty well with the Noise Reduction effect in Audacity. Here are a couple resources:
text instructions: http://wiki.librivox.org/index.php/Noisecleaning_With_Pics
video, but with an older version of Audacity so the settings are different: http://www.youtube.com/watch?v=VFSg9o37HMw

My settings are as follows:
Noise reduction: 10-16 (I suggest about 12 for you)
Sensitivity: [default]
Frequency Smoothing: [default]

It's a 2-step process: (1) defining what is noise, and (2) reducing it. I used the part at the end of your recording where you aren't speaking, and ran both steps twice at level 12 as described above. (First before doing that I de-amplified by 4 as I said above.) Here's my result: https://librivox.org/uploads/tests/test_skwanlada_nr.mp3

Try it yourself and see what happens. 8-)
Mystery/PulpFic: Dope, by Sax Rohmer
The one that started them all: Self-Help, by Samuel Smiles
Elizabethan Poetry: The Psalmes of David
Boring works 30-70 minutes long: Insomnia Collection 5
Short essays: Elia, and The Last Essays of Elia

SKwanlada
Posts: 66
Joined: October 9th, 2017, 11:42 pm

Post by SKwanlada » April 19th, 2020, 3:41 am

Here's my result: https://librivox.org/uploads/tests/test_skwanlada2edit.mp3
I amplified it by -4 dB as you said, then selected the noise profile and use noise reduction at 12 dB.

When I listened the background noise was still a little more than your example so I tried noise reduction again at 12 dB, making that 2 times... I think the result resembles your example more but I'm not sure if I could do that...
Anyway, here is the file from using noise reduction again:

https://librivox.org/uploads/tests/test_skwanlada2edit2.mp3

TriciaG
LibriVox Admin Team
Posts: 47870
Joined: June 15th, 2008, 10:30 pm
Location: Toronto, ON (but Minnesotan to age 32)

Post by TriciaG » April 19th, 2020, 6:02 am

They both sound better. You can decide how much noise reduction you want to do - either of these samples is OK for us.

You're all set. Have fun! 8-)
Mystery/PulpFic: Dope, by Sax Rohmer
The one that started them all: Self-Help, by Samuel Smiles
Elizabethan Poetry: The Psalmes of David
Boring works 30-70 minutes long: Insomnia Collection 5
Short essays: Elia, and The Last Essays of Elia

Post Reply