Audacity 2.1.0 Edit files without compress again

Help for Audacity on Windows.
Forum rules
ImageThis forum is for Audacity on Windows.
Please state which version of Windows you are using,
and the exact three-section version number of Audacity from "Help menu > About Audacity".


Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
Post Reply
Diddi
Posts: 4
Joined: Tue Apr 14, 2015 8:22 pm
Operating System: Please select

Audacity 2.1.0 Edit files without compress again

Post by Diddi » Tue Apr 14, 2015 8:25 pm

Hi

So I created some .OGG files and I noticed some of them were a bit on the low side in terms of volume, how can I edit the file, amplify the audio levels and then save it again without compressing it further?

It is currently 47.8kb and I want to keep it that way but just increase its volume a bit.

Thank you! :)

steve
Site Admin
Posts: 81653
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Audacity 2.1.0 Edit files without compress again

Post by steve » Tue Apr 14, 2015 9:24 pm

Diddi wrote:So I created some .OGG files
From what? Something that you recorded in Audacity?
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

Gale Andrews
Quality Assurance
Posts: 41761
Joined: Fri Jul 27, 2007 12:02 am
Operating System: Windows 10

Re: Audacity 2.1.0 Edit files without compress again

Post by Gale Andrews » Tue Apr 14, 2015 9:54 pm

Diddi wrote:So I created some .OGG files and I noticed some of them were a bit on the low side in terms of volume, how can I edit the file, amplify the audio levels and then save it again without compressing it further?

It is currently 47.8kb and I want to keep it that way but just increase its volume a bit.
If you exported the file from an Audacity project, reopen the project then you won't lose quality by re-encoding. Is that what you mean by "compressing"?

As far as I know, none of the tools to edit OGG files losslessly let you change their volume.

So the only other option would be to apply Replay Gain using Foobar2000 or other tool that supports it.


Gale
________________________________________FOR INSTANT HELP: (Click on Link below)
* * * * * Tips * * * * * Tutorials * * * * * Quick Start Guide * * * * * Audacity Manual

Diddi
Posts: 4
Joined: Tue Apr 14, 2015 8:22 pm
Operating System: Please select

Re: Audacity 2.1.0 Edit files without compress again

Post by Diddi » Wed Apr 15, 2015 4:09 pm

steve wrote:
Diddi wrote:So I created some .OGG files
From what? Something that you recorded in Audacity?
Oops, maybe convert is better word here. No they were converted from .mp3 files.

Gale Andrews wrote:
Diddi wrote:So I created some .OGG files and I noticed some of them were a bit on the low side in terms of volume, how can I edit the file, amplify the audio levels and then save it again without compressing it further?

It is currently 47.8kb and I want to keep it that way but just increase its volume a bit.
If you exported the file from an Audacity project, reopen the project then you won't lose quality by re-encoding. Is that what you mean by "compressing"?

As far as I know, none of the tools to edit OGG files losslessly let you change their volume.

So the only other option would be to apply Replay Gain using Foobar2000 or other tool that supports it.


Gale
I did not save the project but I do have the original clips left so I can just create new ones, a bit of a hassle but kinda my own fault. Thanks anyway.

steve
Site Admin
Posts: 81653
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Audacity 2.1.0 Edit files without compress again

Post by steve » Wed Apr 15, 2015 8:18 pm

Diddi wrote: they were converted from .mp3 files.
OK, so you already have two levels of quality loss (the quality lost from the original MP3 encoding, then additional loss from the Ogg encoding), and you want to avoid a third layer of quality loss.

Ideally you would go back to the original uncompressed audio (the audio from which the MP3 was made). Amplify that and then export as Ogg (avoiding the MP3 stage altogether).

If you don't have the original uncompressed audio, go back to the MP3.
Unless you specifically need Ogg format, use a lossless editor such as MP3DirectCut (http://mpesch3.de1.cc/mp3dc.html), or use ReplayGain on your media player (if your media player supports ReplayGain).
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

Post Reply