1 minute test [OK]

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wib66
Posts: 11869
Joined: January 5th, 2012, 8:57 am

Post by wib66 » May 15th, 2021, 5:44 am

Hi and welcome to Librivox. Your reading is great there are just some edits needed please. If you are using Audacity you can do the following.

The bit rate should be 128 kbps. When you export the file change ‘quality’ to 128kbps.

The recording should use a constant bit rate. When you export the file change ‘bit rate mode’ to ‘constant’

The volume is 81dB which is too low. We aim for between 86-92 dB but ideally we would like it to be at 89 dB.
In Audacity you will also find the option to amplify under 'effects'.
How to amplify in Audacity: https://www.youtube.com/watch?v=z_z607awyLw
If you like you can use the checker tool to verify volume and other settings.
https://cgjennings.ca/projects/checker/

Please could you carry out the edits then upload the file using the same file name. If you need any more help please just ask. Thanks

FletchersIceIsland
Posts: 13
Joined: January 6th, 2021, 2:43 pm

Post by FletchersIceIsland » May 15th, 2021, 12:51 pm

Hi, I was looking at Audacity and I cannot find the 81db on amplify, it says 12.988. The highest it will go is 50db, how do I find the 81 and change it to 89?

wib66
Posts: 11869
Joined: January 5th, 2012, 8:57 am

Post by wib66 » May 16th, 2021, 3:32 am

Hi when you go to amplify the number shown is the maximum by which you can amplify in this cast it is 12db. As your file is 81dB you only need to amplify by 8db. You therefore select the whole file, go to effect, amplify and put in 8dB. This will increase the whole file to 89dB. Hope that makes sense. Thanks

FletchersIceIsland
Posts: 13
Joined: January 6th, 2021, 2:43 pm

Post by FletchersIceIsland » May 16th, 2021, 7:41 am

I tried to put in an 8db, but the ok option disappears when I add it. The only way it accepts it is if I click the 'allow clipping' option, should I click that?

wib66
Posts: 11869
Joined: January 5th, 2012, 8:57 am

Post by wib66 » May 16th, 2021, 10:25 am

Hi you need to put the 8 in the top box where it currently says 12.88 then press ok.

Image

FletchersIceIsland
Posts: 13
Joined: January 6th, 2021, 2:43 pm

Post by FletchersIceIsland » May 16th, 2021, 12:57 pm


https://librivox.org/uploads/knotyouraveragejo/untitled.mp3

here is my revised version, thank you for all of your help!

wib66
Posts: 11869
Joined: January 5th, 2012, 8:57 am

Post by wib66 » May 16th, 2021, 4:31 pm

Hi that is now PL OK and you are good to go and find something you would like to record. Have fun and please ask if you have any questions.

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