1 minute test recording from aitch [OK]

All languages: post your test recording here. Help check audio files.
Post Reply
Aitch
Posts: 4
Joined: June 22nd, 2024, 3:42 pm

Post by Aitch »

https://librivox.org/uploads/tests/test_aitch.wav
This hopefully is my 1 minute test recording using Audacity, windows USB mic
sjmarky
Posts: 4626
Joined: August 28th, 2006, 8:47 pm
Location: Sacto CA
Contact:

Post by sjmarky »

Welcome Aitch

I reviewed your test sample, and while it sounds good there are some technical changes needed. LibriVox requires audio that is 128kbps constant bit rate MP3, 44.1kHz sample rate, mono, and between 86dB and 92dB, preferably 89-90. Your test audio is WAV file, and the volume too low at 82.3dB. There is also too much background noise.

Make sure input gain slider in Audacity (upper right with the little mic icon) is well to the right. Then adjust the input gain on your mic so your raw recording has wave forms that peak at about the 0.5 marks in the Audacity window:
Image

If necessary, adjust the volume level before exporting by going to Effects>Amplify and enter an amount.

Try to isolate your mic from the noise, such as computer fan. If that isn’t entirely successful, use Audacity’s Noise Removal filter to reduce the background noise about 10dB. Noise removal instructions are available here: https://wiki.librivox.org/index.php?title=Noise_Cleaning. A video tutorial on Audacity noise removal is available here: https://youtu.be/rvhqw7zBmEo

Before you start recording, go to Audio Setup (in the Audacity menu bar), select Audio Settings. In the dialogue box set Project Sample Rate and Default Sample Rate to 44100.

Before you start recording, go to Audio Setup (in the Audacity menu bar), select Audio Settings. In the dialogue box set Recording Channels and select 1 (mono).

When exporting your MP3 from Audacity, go to File>Export Audio. In the pop-up menu select:
Format: MP3 Files
Channels: Mono.
Sample Rate: 44100
Bit Rate Mode: Constant.
Quality: 128kbps.

These selections will be saved for future exports.

See the pinned post at the top of this forum for screen shots of these menus and settings.

You can pre-check your audio yourself by downloading the free Checker app: https://cgjennings.ca/projects/checker/
Passed with Warnings is a fail with regard to volume.
With Checker open, go to Validation>Choose Validation Methods and check Background Noise. Be sure to leave 5 seconds blank at the end of your recording.

Please make a new test recording and post it in a reply to this message. I will come back and review it for you.
"Bringing you yesterday's tomorrow...today!"

My website
My Librivox reader page
Aitch
Posts: 4
Joined: June 22nd, 2024, 3:42 pm

Post by Aitch »

https://librivox.org/uploads/tests/test_aitch.mp3
thanks for reviewing my test, I`ve made some changes as suggested so hopefully a bit better.
sjmarky
Posts: 4626
Joined: August 28th, 2006, 8:47 pm
Location: Sacto CA
Contact:

Post by sjmarky »

Okay, you are good to go.

Happy narrating!
"Bringing you yesterday's tomorrow...today!"

My website
My Librivox reader page
Aitch
Posts: 4
Joined: June 22nd, 2024, 3:42 pm

Post by Aitch »

Yay! Thank you so much for your time, can’t wait to get stuck in! :D
Post Reply