Help in removing noise

Audacity Podcaster Forum.
Forum rules
ImageIf you require help using Audacity, please post on the forum board relevant to your operating system:
Windows
Mac OS X
GNU/Linux and Unix-like
prin
Posts: 6
Joined: Thu Apr 08, 2021 2:52 pm
Operating System: Windows 8 or 8.1

Help in removing noise

Post by prin » Thu Apr 08, 2021 2:59 pm

In the following link( without any modification) https://soundcloud.com/rohan-suri-15554 ... -a-mystery , there is background noise which I am unable to remove. I have tried a lot of effects, but with no good. Please guide me fellow users. Thank you.

steve
Site Admin
Posts: 81367
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Help in removing noise

Post by steve » Thu Apr 08, 2021 3:14 pm

prin wrote:
Thu Apr 08, 2021 2:59 pm
there is background noise
A clock?

You need to either remove that noise source when you are recording, or record somewhere else.
It can be slightly reduced with the Noise Reduction effect, but it can't be reduced by much without badly affecting the voice.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

prin
Posts: 6
Joined: Thu Apr 08, 2021 2:52 pm
Operating System: Windows 8 or 8.1

Re: Help in removing noise

Post by prin » Thu Apr 08, 2021 3:18 pm

I see. Thank you for your help.

Trebor
Posts: 9898
Joined: Sat Dec 27, 2008 5:22 pm
Operating System: Windows 8 or 8.1

Re: Help in removing noise

Post by Trebor » Thu Apr 08, 2021 3:36 pm

prin wrote:
Thu Apr 08, 2021 2:59 pm
... there is background noise which I am unable to remove. I have tried a lot of effects, but with no good. Please guide me fellow users. Thank you ...
The background pump-noise occupies the same frequency-range as speech,
so if you turn Noise Reduction up high enough to remove it the voice will become very computery.

at that point text-to-speech would be preferable
Attachments
the moon is a mystery.flac
original -NR - text2speech
(536.49 KiB) Downloaded 14 times

prin
Posts: 6
Joined: Thu Apr 08, 2021 2:52 pm
Operating System: Windows 8 or 8.1

Re: Help in removing noise

Post by prin » Thu Apr 08, 2021 3:44 pm

Thank you Trebor for your demo.

steve
Site Admin
Posts: 81367
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Help in removing noise

Post by steve » Thu Apr 08, 2021 4:23 pm

This is a compromise between noise reduction and voice damage.
I took the noise sample from the end of the recording.
Noise Reduction settings: 24 / 9.00 / 4

Here's the result:
the moon with noise reduction.flac
(1.17 MiB) Downloaded 16 times
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

prin
Posts: 6
Joined: Thu Apr 08, 2021 2:52 pm
Operating System: Windows 8 or 8.1

Re: Help in removing noise

Post by prin » Thu Apr 08, 2021 5:37 pm

Thank you Steve. I guess I will try to record again.

prin
Posts: 6
Joined: Thu Apr 08, 2021 2:52 pm
Operating System: Windows 8 or 8.1

Re: Help in removing noise

Post by prin » Fri Apr 09, 2021 5:55 am

steve wrote:
Thu Apr 08, 2021 4:23 pm
This is a compromise between noise reduction and voice damage.
I took the noise sample from the end of the recording.
Noise Reduction settings: 24 / 9.00 / 4

Here's the result: the moon with noise reduction.flac
I am trying to start a poetry series as you heard above. Could you tell me what effects are recommended (in order) for audio processing of such tracks. I am a complete noob in this technical aspect. Thank you.

steve
Site Admin
Posts: 81367
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Help in removing noise

Post by steve » Fri Apr 09, 2021 8:28 am

Spoken word recordings are usual done without effects. Just aim to get as clear and natural sounding recording as possible.

Once you have a recording that sounds clear and natural with low background noise, Noise Reduction may be used to reduce the background noise further (but the noise level should be low to start with), and "Filter Curve EQ" may be used to remove sub-sonic rumble.

There's a guide here for audiobook producers, which is also suitable for any other spoken word recordings: https://wiki.audacityteam.org/wiki/Audiobook_Mastering
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

prin
Posts: 6
Joined: Thu Apr 08, 2021 2:52 pm
Operating System: Windows 8 or 8.1

Re: Help in removing noise

Post by prin » Fri Apr 09, 2021 8:39 am

steve wrote:
Fri Apr 09, 2021 8:28 am
Spoken word recordings are usual done without effects. Just aim to get as clear and natural sounding recording as possible.

Once you have a recording that sounds clear and natural with low background noise, Noise Reduction may be used to reduce the background noise further (but the noise level should be low to start with), and "Filter Curve EQ" may be used to remove sub-sonic rumble.

There's a guide here for audiobook producers, which is also suitable for any other spoken word recordings: https://wiki.audacityteam.org/wiki/Audiobook_Mastering
Thank you Steve for your expert help.

Post Reply