https://librivox.org/uploads/tests/test_tressacollins

All languages: post your test recording here. Help check audio files.
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tlcollins
Posts: 11
Joined: November 27th, 2023, 1:23 pm

Post by tlcollins »

Test posted.
tlcollins
Posts: 11
Joined: November 27th, 2023, 1:23 pm

Post by tlcollins »

sjmarky
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Joined: August 28th, 2006, 8:47 pm
Location: Sacto CA
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Post by sjmarky »

Greetings Tressa

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 129kbps variable bit rate. The volume is good. There is a severe background noise, which includes a strange clicking sound.

First, find the source of the noise. I haven't heard noise like that before, and unfortunately Audacity's noise removal filter won't be effective. It almost sounds like something is hitting a fan - there is a click every .1 seconds. Try moving your mic around, using a different USB plug and see if it makes a difference.

When exporting your MP3 from Audacity, be sure to check Bit Rate Mode - Constant, then select 128kb from the pull-down menu, and check Force Export to Mono.

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.
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.
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tlcollins
Posts: 11
Joined: November 27th, 2023, 1:23 pm

Post by tlcollins »

Thank you for the information and help. I am working to get these issues fixed and will send another recording.
I appreciate your time and help.

Tressa Collins
tlcollins
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