1 minute test

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Joined: February 29th, 2020, 4:51 pm

Post by ky396843 » February 29th, 2020, 10:36 pm

I am posting a link for your review.
Please let me know if you find anything I can improve on.


recording software (Audacity)
operating system (Windows) and mic type (analog)

Thank you for reviewing this,

LibriVox Admin Team
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Joined: November 5th, 2010, 12:37 pm
Location: Florida, USA

Post by linny » March 1st, 2020, 9:16 am

Hello Kate,
Welcome to LV! You have a nice clear voice.

I'm glad you mentioned you used Audacity. I can provide some instructions for needed changes. There are a few things to work out but they aren't too challenging. First, we need to adjust some of your settings, and then we will look at amplifying and noise cleaning.

First take a look at your audio. Can you see two panels of waves? If not, adjust the Audacity screen. You should see two almost identical panels one above the other. This shows you that you have a stereo recording. We need mono. Go to Tracks>Mix> Mix stereo to mono. Now there should only be one panel of waves.

Next we need to get you louder. For future recording you can try adjusting your mic positioning or the input level but for this one let’s just amplify. Your recording is at 62.7dB. We aim for 89dB with an allowance of 86-92dB. Highlight your audio. Go to Effect>Amplify>27 ok. Now, see how the majority of your waves are about the height of 0.5 to -0.5 (look to the left of the wave on the Audacity program you should see numbers ranging from 1.0 to -1.0) This is the height you are aiming for.

Now let’s do a little bit of noise cleaning. Do you see how your line during the "silent" areas is "fuzzy", especially in the beginning? This is a visual indicator there is too much background noise. In the future be sure that you turn off everything you can hear before you start recording. Sit quietly in your recording area and just listen. If you can hear it, so can the microphone.
For this recording try some noise cleaning. Noise cleaning and amplifying are the two most common edits we do.
First highlight some of your "silence", say 0:00-0:05.
Effect>Noise Reduction>Get Noise Profile
Select your entire recording
Effect>Noise Reduction>Play around with the noise settings (using the "preview" button until you are satisfied). I used 24, 6.00, 6. Toggle to reduce noise>OK.
See how the line in your silence areas became a very fine line? That's what you are looking for.

Finally, some of your export settings are not on target. The good news is with Audacity when you get them set, the program remembers them for future exports.
File>Export audio>(wherever you want to save it is fine).
Bit rate should be 'Constant'
Quality 128kbps

Please upload the modified file (or new recording) and post another link to this same thread for a double check.

In case you are a visual learner here are some videos which may help. They may not be your version of Audacity but should still prove helpful.
Setting up your specs: https://www.youtube.com/watch?v=YqmCOxOs_pM
Noise cleaning: https://www.youtube.com/watch?v=VFSg9o37HMw
Amplify: https://www.youtube.com/watch?v=z_z607awyLw
Here is our full catalog of videos: https://wiki.librivox.org/index.php?title=Instructional_Videos

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