1 minute test

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zhaoy
Posts: 3
Joined: May 8th, 2020, 3:02 pm

Post by zhaoy » July 18th, 2020, 2:02 pm

Hi there!

I am Yulia and I'm new to LibriVox, please let me know if this recording needs more work!

Here is my 1 minute test:
https://librivox.org/uploads/tests/yulialibrivoxtesting.mp3

I recorded it using Audacity, on my apple laptop, with a USB mic.

Thank you! :D

Yulia Z

Rapunzelina
LibriVox Admin Team
Posts: 9882
Joined: November 15th, 2011, 3:47 am

Post by Rapunzelina » July 19th, 2020, 10:11 am

Hello Yulia! Welcome to Librivox! :clap:

There are some tech specs that need fixing, but I hope to help you set them correctly. :D

The recording is in stereo, but it needs to be in mono. So first check if Audacity is set to record in mono, from menu Edit - Preferences, Devices, Recording, Channels: select "1 (Mono)" from the drop-down menu. Then click OK to save.

Later, when you go to export as mp3, check the format options in the Export Window, and choose "Constant" for Bit Rate Mode, "128 kbps" for Quality, and tick "Force export to mono". Then click Save to export and Audacity should keep these settings for all future exports.

I hear a few random plosives. That is when breath/air hits the microphone and creates distortion. For example, to understand what I mean, the "p" sounds at the beginning and end "People were pleased" ... "previously published and probably".
It causes a slight distortion, so not too bad, but maybe you can avoid it completely; experiment with different angles to your microphone, so that your breath goes past it, and not directly on it.

I use headphones, and I can hear a faint background white noise. Optionally, you could use the Noise Reduction effect in Audacity, https://wiki.librivox.org/index.php?title=Noisecleaning_With_Pics#Clean_up_the_Noise:_Audacity_versions_from_2.1.0 See if it sounds any better to you.

The important thing are the tech specs, so please ask if there are any questions, or when ready, go ahead and upload a new recording here to check again. Thank you!

zhaoy
Posts: 3
Joined: May 8th, 2020, 3:02 pm

Post by zhaoy » July 20th, 2020, 5:07 pm

Hi there!

Thank you so much for your feedback. I tried again with all your tips and fixes, and I think it sounds much better! :D

Here is my new test recording:
https://librivox.org/uploads/tests/test_yulia.mp3


Thank you, and please let me know if it needs more work!


Yulia

GracelessPassion
Posts: 4
Joined: July 19th, 2020, 8:49 pm

Post by GracelessPassion » July 20th, 2020, 7:55 pm

I'm not an admin, but that definitely sounds much better!

Rapunzelina
LibriVox Admin Team
Posts: 9882
Joined: November 15th, 2011, 3:47 am

Post by Rapunzelina » July 21st, 2020, 1:40 am

Oh, yes, the sound quality is wonderful now! :clap:

However I still get the bit rate wrong, so please check again, when you go to export as mp3, in the Export Window options choose "Constant" for Bit Rate Mode and "128 kbps" for Quality. Then upload your new file to check the bitrate once more. Thank you!

zhaoy
Posts: 3
Joined: May 8th, 2020, 3:02 pm

Post by zhaoy » July 21st, 2020, 6:03 pm

Hi there!

Thank you so much for your feedback! I export it again, the quality is at 128kbps, but for Bit Rate Mode, I only have the options of present, variable and average. And in order to have quality at 128, I have to choose average. :|

Here is a link to the new recording:
https://librivox.org/uploads/tests/test_yulia.mp3

Here is a picture of what it looks like when I export:
https://drive.google.com/file/d/121emo1BO-mfnUfdJVXMdlLnSRj0RXvCn/view?usp=sharing

Thank you so much for your help! :D


Yulia

Rapunzelina
LibriVox Admin Team
Posts: 9882
Joined: November 15th, 2011, 3:47 am

Post by Rapunzelina » July 22nd, 2020, 2:23 am

I'm curious to see the picture, but it requests access. Could you perhaps make it available for people with the link?

Average or variable won't work I'm afraid, because they don't give a standard 128, like, this current recording measures 121, your next might measure 135, to keep the average at 128 :|

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