1 Minute Test [OK]

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Meetali10
Posts: 36
Joined: April 23rd, 2020, 4:20 am

Post by Meetali10 » April 25th, 2020, 5:12 am

Dear Team,

May this message finds you well. Please find below the link of 1 minute test:
https://librivox.org/uploads/tests/Test_Meetali10.mp3

Please find required details:

Software: Audacity 2.3.3
Windows version: 10
Mic:Due to Pandemic Situation, I am unable to purchase a specific mic because of which I have to use 'earphones mic'. The earphones that I am using is JBL C100SI.

Hope this works!

Thank you so much and very happy and excited to be a part of Librivox.

Warm regards
Meetali

linny
LibriVox Admin Team
Posts: 13872
Joined: November 5th, 2010, 12:37 pm
Location: Florida, USA

Post by linny » April 25th, 2020, 6:07 am

Meetali,
Welcome to LV! 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 a little 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 68.7dB. We aim for 89dB with an allowance of 86-92dB. Highlight your audio. Go to Effect>Amplify>20 ok. The system is only going to allow you to amplify by 8.846. Go with that for now. Do you see the spike at 4 seconds? Highlight that spike. Go to Effect>Amplify>-13 ok. (remember the minus sign.) Now, highlight all of your audio again. Go to Effect>Amplify>11 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"? 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 0:33-0:35.
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 30, 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
Save

Please upload the modified file 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 aren't 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

Meetali10
Posts: 36
Joined: April 23rd, 2020, 4:20 am

Post by Meetali10 » April 27th, 2020, 2:58 am

Dear Linny,

Thank you for your prompt response as well as the warm welcome. Thank you so much for your feedback, the steps were really easy to follow and I also happen to learn something new on audacity. I have tried to follow your suggestions and have come up with two audio file links. Would you please check both: 1) https://librivox.org/uploads/tests/Test_Meetali10-Modified.mp3
2) https://librivox.org/uploads/tests/Test_Meetali10_Modified.mp3

Looking forward to your feedback.

Thank you once again :)

Warm regards
Meetali

Meetali10
Posts: 36
Joined: April 23rd, 2020, 4:20 am

Post by Meetali10 » April 30th, 2020, 2:27 am

Dear Linny,

Did you get a chance to check the modified 1 minute recording? Looking forward to hear from you.

Warm regards
Meetali

Meetali10
Posts: 36
Joined: April 23rd, 2020, 4:20 am

Post by Meetali10 » April 30th, 2020, 2:31 am

Dear Team,

May this message finds you well. I have re-recorded the 1 minute test. Here's the link: https://librivox.org/uploads/tests/Test_Meetali10-Modified.mp3

Looking forward to hearing from you.

Thank you!

Warm regards
Meetali

linny
LibriVox Admin Team
Posts: 13872
Joined: November 5th, 2010, 12:37 pm
Location: Florida, USA

Post by linny » April 30th, 2020, 7:09 am

Meetali,
Well, we got the volume up to 79-80dB. It's still too low. Please try amplifying again by another 9-10dB. Sometimes with the noise cleaning the volume drops. You'll certainly want to increase your input volume for future recordings. You have some spikes so a straight amplification won't work. Take a look at this video. It should help. https://www.youtube.com/watch?v=-fKYYj6HMZU

There are no issues with noise cleaning on these and they are both in mono. :clap:

Recheck the export settings. The bit rate needs to be 128 kbps and constant rather than variable.

Please upload the modified file and post another link to this same thread for a double check.

mightyfelix
LibriVox Admin Team
Posts: 5761
Joined: August 7th, 2016, 6:39 pm

Post by mightyfelix » April 30th, 2020, 7:46 am

I merged your two threads together to keep things tidy. :)

linny
LibriVox Admin Team
Posts: 13872
Joined: November 5th, 2010, 12:37 pm
Location: Florida, USA

Post by linny » April 30th, 2020, 7:47 am

mightyfelix wrote:
April 30th, 2020, 7:46 am
I merged your two threads together to keep things tidy. :)
Thank you, I was just doing that. :D

Meetali10
Posts: 36
Joined: April 23rd, 2020, 4:20 am

Post by Meetali10 » May 2nd, 2020, 11:56 pm

Dear Linny,

Thank you for your wonderful feedback. Please find here the link of modified recording:
https://librivox.org/uploads/tests/Test_Meetali10-ModificationAnother.mp3

Looking forward to your feedback!

Thank you!

Warm regards
Meetali

linny
LibriVox Admin Team
Posts: 13872
Joined: November 5th, 2010, 12:37 pm
Location: Florida, USA

Post by linny » May 3rd, 2020, 7:04 am

Hello Meetali,
Unfortunately, this sample is also too low in volume, 81.9dB.

Also we need 128kbps constant bit rate.

Please upload the modified file and post another link to this same thread for a double check.

Meetali10
Posts: 36
Joined: April 23rd, 2020, 4:20 am

Post by Meetali10 » May 4th, 2020, 2:16 am

Dear Linny,

So sorry regarding the sound the problem is with the mic, it's an earphone mic and the loudness goes upto 66.69db, due to lockdown I am unable to purchase a mic. However I have modified the recording as per the instructions, here's the link:
https://librivox.org/uploads/tests/Test_Meetali10-Modifiedfile.mp3

Please let me know if it is okay?

Sorry for the trouble and thank you!

Warm regards
Meetali

linny
LibriVox Admin Team
Posts: 13872
Joined: November 5th, 2010, 12:37 pm
Location: Florida, USA

Post by linny » May 4th, 2020, 1:20 pm

No trouble at all. Sometimes it takes multiple attemps to get everything set up correctly.

Good news is the export settings are all correct. :clap:

There is still a volume issue. Not the recording is much too high at 97.3dB. There are a number of instances where there is 'clipping'. You may have attempted to amplify and allowed clipping. Unfortunately, clipping leads to distortion where there is difficulty in hearing what you are saying.

I would suggest attempting another recording altogether. Amplify the low parts and lower the amplification on the high parts. Depending on the difference between your high and low volumes you may have to amplify multiple times.

Here is a video. https://www.youtube.com/watch?v=-fKYYj6HMZU

Meetali10
Posts: 36
Joined: April 23rd, 2020, 4:20 am

Post by Meetali10 » May 7th, 2020, 4:04 am

Dear Linny,

Thank you for your feedback. Please find here the modified file link: https://librivox.org/uploads/tests/Test_Meetali10ModificationVers.mp3

Would love to hear your feedback, thank you :)

Warm regards
Meetali

linny
LibriVox Admin Team
Posts: 13872
Joined: November 5th, 2010, 12:37 pm
Location: Florida, USA

Post by linny » May 7th, 2020, 8:16 am

Meetali,
You are SO close! This is leaps and bounds better. The volume is a little too high at 93.7dB. Please amplify by -4 (remember the minus sign).

Double check the settings. Somehow the sampling rate got changed. There should be a dropdown box in the lower left of the audacity screen. It currently will show a Project rate (Hz) of 16000. It should be 44.01 kHz (44,100 Hz).

Don't give up! You are doing great and almost there. :clap:

Meetali10
Posts: 36
Joined: April 23rd, 2020, 4:20 am

Post by Meetali10 » May 10th, 2020, 2:51 am

Dear Linny,

Thank you for your wonderful feedback. Please find the modified link here:
https://librivox.org/uploads/tests/Test_Meetali10ModificationVers1.mp3

Looking forward to your feedback :)

Warm regards
Meetali

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