1 minute test, feedback desired [OK]

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mmelhart
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Post by mmelhart » February 25th, 2020, 4:35 pm

Happy to be getting started with Librivox! Hope everything is right here. Let me know.

I used Garageband on a Mac with a SamsonGo USB mic.

https://librivox.org/uploads/tests/test_mmelhart.mp3
love, mel hart

mmelhart
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Post by mmelhart » February 27th, 2020, 8:35 am

Hoping this will get a reply so I can start recording a history of philosophy!! Thanks friends!!
love, mel hart

linny
LibriVox Admin Team
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Post by linny » February 27th, 2020, 8:40 am

Welcome to LV.

You have a nice clear voice and I had no problems hearing you.

I don't have GarageBand so I can't help you with making the adjustments but if you need assistance please post in the Help forum. We have a few GarageBand volunteers.

You have met most of the requirements however your recording should be in mono and not stereo. Also, it could use a round of noise cleaning.

When you have made the corrections please post your revised link in this same thread for a double check.

mmelhart
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Post by mmelhart » February 27th, 2020, 4:53 pm

Thanks for your response! I used Audacity this time.

https://librivox.org/uploads/tests/test_mmelhart_(2).mp3
love, mel hart

linny
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Post by linny » February 28th, 2020, 8:22 am

mmelhart wrote:
February 27th, 2020, 4:53 pm
Thanks for your response! I used Audacity this time.

https://librivox.org/uploads/tests/test_mmelhart_(2).mp3
Hello Mel,
You popped on the 'p' at 0.5 seconds. It's likely due to your mic position. Place a finger on the mic. Talk. If you feel your breath then move the mic slightly to the side, up, or down.

The volume on this one is too low at 77.1dB. We aim for 89 dB with an allowable range of 86-92dB. Check your input volume in Audacity. You may be able to increase it.

With the spike you won't be able to do a straight amplification. Here is a link to the videos we have for Audacity. Also, the wiki is a wonderful resource.

https://wiki.librivox.org/index.php?title=Instructional_Videos

When you have made the corrections please post the revised link in this same thread for another check. Please don't be discouraged. It often take a few tries to get everything set up. That's why we do this before you read longer sections. :D

mmelhart
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Post by mmelhart » February 28th, 2020, 12:08 pm

The input volume was set to .50 when I recorded that. Should I bring it up to .89?
Why is the final volume 77.1?
Is there a way I can check what volume it is so I can make sure it's at 89 dB?

I started recording a chapter with a pop filter. If its not at the correct dB will I be able to amplify it if there are no pops or will I have to start over?

If this is not the appropriate place, can you link me to somewhere I can post these questions?

Thanks!!!
love, mel hart

audiomike
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Location: Mid-Michigan

Post by audiomike » February 28th, 2020, 2:48 pm

Mel,

There are two spikes (they're called transient spikes) in your file. One is at 2.5 seconds and it's just a bit of a plosive (popping 'p' sound). The one at 5.5 seconds sounds like you bumped the mic. Either way they both need to be taken down before you can properly amplify the waveform. Audacity amplifies by looking at the highest peak it can find and amplifying it up to the desired level. In your case it's the top of the mic bump which can't go any higher. You wind up with a file that is still too quiet.
You can fix it by highlighting just the bump spike, selecting effects / amplify, and put negative numbers in the top box. It's always good to use steps such as -6 or -3 until you get it down to the level of the rest of the waveform. Once you do that you can amplify the whole thing up to where it should be.

Kazbek
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Joined: April 24th, 2019, 12:06 pm

Post by Kazbek » February 28th, 2020, 5:59 pm

Also, for measuring and changing the volume in Audacity, check out ReplayGain:

https://wiki.librivox.org/index.php/Measuring_Volume_within_Audacity

Michael

linny
LibriVox Admin Team
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Post by linny » February 29th, 2020, 8:35 am

As an option to replaygain there is a program we use which is very simple and checks all of your setting including the volume.

The Checker: https://wiki.librivox.org/index.php?title=Checker

mmelhart
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Post by mmelhart » February 29th, 2020, 2:38 pm

linny wrote:
February 29th, 2020, 8:35 am
As an option to replaygain there is a program we use which is very simple and checks all of your setting including the volume.

The Checker: https://wiki.librivox.org/index.php?title=Checker
Thanks everyone for the help!! I used the checker. I hope this one is good!!!

https://librivox.org/uploads/tests/test_mmelhart(4).mp3
love, mel hart

linny
LibriVox Admin Team
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Post by linny » February 29th, 2020, 3:02 pm

Mel,
This one is indeed a good one! Proof Listen (PL) OK. :clap:

You may now record for projects. We suggest starting in short works until you are comfortable with the editing process.

When you have some time please take a look at our wiki. It's a wonderful resource.

Have fun and thank you for contributing.

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