1 Min Test by Layla Marinos [OK]

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Layla
Posts: 10
Joined: April 18th, 2020, 9:26 pm

Post by Layla » April 20th, 2020, 1:42 pm

Hi,
Here is my test (text from your wiki test page): https://librivox.org/uploads/tests/test_layla_marinos.mp3
I used GarageBand on MacBook and a Shure Beta 58A Mic (connected directly to my Mac).

Thank you,
Layla Marinos

knotyouraveragejo
LibriVox Admin Team
Posts: 16314
Joined: November 18th, 2006, 4:37 pm

Post by knotyouraveragejo » April 21st, 2020, 2:52 pm

Hi Layla,

Welcome to LibriVox. Please see the following comments on your test recording.

1. First, this test file is stereo. It needs to be mono. In Garage Band, I believe you set this when you export to mp3. Other audio recording programs can be set to record in mono, but I don't think that's an option with GarageBand.

2. Your volume is a little high. You could back off on the mic gain or deamplify by 2-3 db.

3. There is noticeable background hiss. Many of our readers use Audacity for recording and editing which has a quite good noise removal plugin. Two passes with the default settings seemed to work well on this recording.

Please make the above adjustments and upload a new test. You can post the link in this same thread to keep everything in one place.
Jo
My Librivox Solos
Books are the carriers of civilization. Without books, history is silent, literature dumb, science crippled, thought and speculation at a standstill. - Barbara Tuchman

Layla
Posts: 10
Joined: April 18th, 2020, 9:26 pm

Post by Layla » April 22nd, 2020, 5:25 pm

Thank you kindly for your reply :) Here is my second test: https://librivox.org/uploads/tests/test_2_layla_marinos.mp3

I also downloaded Audacity (i'm not a very technical person and couldn't work out how to adjust hissing on GarageBand) so this one is recorded via Audacity :lol:

Exported as Mp3 as instructed on your wiki page and as requested below.
I also did quite a bit of research and watched some video on how to remove background noise/hissing and have applied all I learnt - though, I can still hear a little hissing but sadly I don't think that will be able to go away as my laptop is quite old and I can't download any other program to get rid of that noise - could you please let me know if this is good enough? :)

Thank you again for your help and feedback! Looking forward to hearing from you soon :)

All the very best,
Layla Marinos

knotyouraveragejo
LibriVox Admin Team
Posts: 16314
Joined: November 18th, 2006, 4:37 pm

Post by knotyouraveragejo » April 24th, 2020, 10:42 am

Hi Layla,

Now that you have switched to Audacity, your volume on this recording is too low. (78.3db). We aim for 89 db with an acceptable range of 86-92 db. Please try increasing the mic input volume either in Audacity or in the Sounds and Audio section of the Control Panel. This adjustment will also help increase the signal to noise with regard to the background.

To judge whether you have the volume set correctly, your waveform in Audacity should look similar to this example:

Image

Detailed instructions for adjusting your input levels can be found here:

http://wiki.librivox.org/index.php/Setting_Recording_Input_Level


You can download the checker program to check your volume after exporting to mp3 and before you upload your file.

https://wiki.librivox.org/index.php/Checker

If you prefer you can use the Replay Gain plugin in directly in Audacity to tell you how much your file needs to be amplified to get to 89 db. Instructions here:

https://wiki.librivox.org/index.php/Measuring_Volume_within_Audacity

If you can't adjust your input volume to reach the target 89 db, then, you will need to use the Effect:Amplify to actually amplify the file which of course also amplifies any background noise. Important: be sure the box to allow clipping is not checked!

With regard to the background, this level would be acceptable, but you may find it gets a lot louder once the volume is at the desired level. If you like, just upload the file without any noise reduction and one of us can recommend specific settings to try.

Please try increasing the volume and/or amplifying and upload another test. Just post the link to this same thread to keep all your tests together.
Jo
My Librivox Solos
Books are the carriers of civilization. Without books, history is silent, literature dumb, science crippled, thought and speculation at a standstill. - Barbara Tuchman

Layla
Posts: 10
Joined: April 18th, 2020, 9:26 pm

Post by Layla » May 20th, 2020, 8:20 pm

Dear Jo,

My apologies for this very late reply - I have been trying to get the recording correct and hopefully this version works :)

Here is Test - Take 3: https://librivox.org/uploads/tests/test_layla_marinos.mp3

I downloaded the LibriVox audio checker too, that you suggested, and it said it was all good as far as it was concerned. I have minimized the background noise/hissing as much as possible on my old laptop so hopefully it is okay now?

Please let me know if there is anything else you need/I need to adjust :)

Thank you for your time,
Layla Marinos

kathrinee
LibriVox Admin Team
Posts: 8133
Joined: May 14th, 2012, 5:09 am
Location: in the sun

Post by kathrinee » May 20th, 2020, 9:39 pm

Great! Your test is A-OK and you can head over to the readers wanted forums to claim a section or two that looks interesting. Have fun :thumbs:
Kathrine

Layla
Posts: 10
Joined: April 18th, 2020, 9:26 pm

Post by Layla » May 21st, 2020, 1:01 am

Awesome :) thank you so much!

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