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Post Posted:: May 24th, 2017, 7:32 am 

Joined: May 19th, 2017, 10:04 pm
Posts: 4
Hi All,

I have just completed my one minute test, following are the specifications.

Link: https://librivox.org/uploads/carolin/test_for_harthstonebrew.mp3
Audio Program: Audacity
OS: Windows
Mic Type: USB Type

Glad to join LibriVox forums. Nice to meet you all.

-HarthStonebrew


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Post Posted:: May 24th, 2017, 9:26 am 
LibriVox Admin Team

Joined: June 15th, 2008, 10:30 pm
Posts: 36491
Location: Toronto, ON (but Minnesotan to age 32)
Welcome!

Sounds good! There are a couple things to adjust:

- The recording is in stereo. To change all future recordings, go to Edit, Preferences, Devices. Under Recording, change Channels to "1 (Mono)".

- The volume is a smidge too high. :) Visually, you should aim for your wave forms to peak near the 0.5 mark, like this:
Image

Knock your microphone slider down a notch.

That's all the required stuff. Here is one suggestion to make it better:

- I see there's some background noise, and it's mostly in the lower tones - so depending on your speakers, you might not even hear it! I suggest running a high pass filter on all your recordings to cut out some of the low tones. (A "high pass filter" lets the high tones pass through while catching the low ones.) Select the entire recording, then go to effect / high pass filter (on mine, it's way down near the bottom).
Put it to Frequency: 100 Hz and Rolloff: 12 dB

Once you run it, you can see that the somewhat thick blue line where you're not speaking turns into a thin, black line. :)

---

One resource you may be interested in to check your volume:

There's a plugin for Audacity that will tell you how much your recordings are off from "ideal" volume (89 dB).
- Click THIS LINK and save the file to your computer - your desktop or somewhere.
- Then go to the folder in which Audacity is installed (on my computer, it's in C:\Program Files (x86)\Audacity) and open the Plug-Ins folder.
- Drag the file you saved into the Plug-Ins folder.
- Start up Audacity and go to Analyze/Add & Remove Plugins.
- Find ReplayGain in the list and enable it.
- Now you can highlight your recording, then go to Effects / ReplayGain, and it'll tell you how much to amplify your file. If it's a negative number, it means to de-amplify (make the file quieter). Anything +/- 1 or 1.5 dB probably doesn't need adjustment.

Whew! That's it! Holler if you have questions. Try making these adjustments, then post another test. Use the same file name as your previous one, and post in this same thread when it's ready. :)

_________________
Original journals on the Exploration of the Mississippi: Here
Thoughts on the Death Penalty: Here
Watergate Report, Vol 1: Here
Fiction about jail atrocities: It Is Never too Late


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Post Posted:: May 24th, 2017, 9:28 am 
LibriVox Admin Team

Joined: June 15th, 2008, 10:30 pm
Posts: 36491
Location: Toronto, ON (but Minnesotan to age 32)
P.S. I see in your post in Carolin's project that you aren't a native English speaker. Honestly, had you not said that, I would not have guessed it! Any very small things that may have suggested it, I would have considered part of a regional accent. :) If any of my slang terms in the above post don't make sense, please ask!

_________________
Original journals on the Exploration of the Mississippi: Here
Thoughts on the Death Penalty: Here
Watergate Report, Vol 1: Here
Fiction about jail atrocities: It Is Never too Late


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