mp3 music file volume modification [SOLVED]

[steve]

Perhaps this tutorial might best be resolved using specific instructions by email:

We are not able to offer e-mail or telephone support.
Posting your e-mail address on a public forum is a bad idea as it is likely to attract a great deal of spam.
I have removed your e-mail address from your post.

As previously described, the best solution to the problem for iTunes users is to use SoundCheck.

[Gale Andrews]

You can Do this with Audacity, I Think this forum is of Audacity So we should Explain tutorial for that...
Import your Mp3 files ( Which you want to decrease or increase the amplitudes )

Step1:)
Use Zoom tool to Zoom the segment where variances are there

Step2:)
Use The Selection Tool to select the segment of variances

Step 3:)
Click on Effect then select Amplifiy to Decrease or increase the Amplitude of Selected Segment.

Last Step4:)
Export the Mp3 files ( You will need Lame mp3 decoder If you dont have one)

LAME is an encoder (it writes MP3 files). "Decoder" means to read a file format.

The trouble with all that above is that it's a manual job, and that to make a song sound "as equally loud" as another, you need to adjust the blue waves based on the height of the light blue (rms) section, not the top or bottom (peak level) of the waveform.

The other point is that MP3 encoding is lossy. There is absolutely no need to degrade the MP3 by re-encoding it if you only want to adjust its volume.


Gale

[satguru59]

LAME is an encoder (it writes MP3 files). "Decoder" means to read a file format

Thanks for the rectification....I am still learning Audacity....

Yeah i agree mp3 has got very defame in forums, But players in some mobiles didn't able to play .wav files, exceptions removed ...
But i too suggest .wav files for export...

[semperfi57]

MAKING SOME GOOD PROGRESS!

BUT HAVING PROBLEM CONVERTING THE FILE TO mp3.

THANKS TO ALL,

GERRY

[Robert J. H.]

I would certainly have offered an Audacity tutorial if there were one that is lossless. Alas, there is none, at least if you want an mp3 again.
That's why I've suggested the Foobar2000 solution.
In general, there are three ways to correct the volume:
1. Open the file in Audacity, change the amplitude and encode the mp3 anew (= quality loss)
2. Changing the ID3 tag by providing a sound-check/replay gain offset.
3. Changing individual mp3 frames with e.g. Sox, Mp3-cut or similar (no new encoding necessary); the steps are roughly 1.4 dB.

[Gale Andrews]

MAKING SOME GOOD PROGRESS!

BUT HAVING PROBLEM CONVERTING THE FILE TO mp3.

You don't want to export the Audacity project to MP3. You will degrade the audio.

You want to tick (check) the box "Sound Check" in Playback Preferences in iTunes. It is a 10 seconds job. Then your MP3's will sound similarly loud without degrading their sound quality.

If you must make your MP3's sound worse by re-encoding them as another MP3, follow these instructions to download and install the LAME MP3 Encoder: http://manual.audacityteam.org/o/man/fa ... .html#lame .


Gale

[Gale Andrews]

2. Changing the ID3 tag by providing a sound-check/replay gain offset.

Which is also lossless.

3. Changing individual mp3 frames with e.g. Sox, Mp3-cut or similar

Do you mean MP3DirectCut there http://mpesch3.de1.cc/mp3dc.html ?


Gale

[Robert J. H.]

2. Changing the ID3 tag by providing a sound-check/replay gain offset.

Which is also lossless.

3. Changing individual mp3 frames with e.g. Sox, Mp3-cut or similar

Do you mean MP3DirectCut there http://mpesch3.de1.cc/mp3dc.html ?


Gale

Exactly.
Thank you Gale.

[semperfi57]

MAKING SOME GOOD PROGRESS!

BUT HAVING PROBLEM CONVERTING THE FILE TO mp3.

You don't want to export the Audacity project to MP3. You will degrade the audio.

You want to tick (check) the box "Sound Check" in Playback Preferences in iTunes. It is a 10 seconds job. Then your MP3's will sound similarly loud without degrading their sound quality.

If you must make your MP3's sound worse by re-encoding them as another MP3, follow these instructions to download and install the LAME MP3 Encoder: http://manual.audacityteam.org/o/man/fa ... .html#lame .


Gale

I use "audio" during iTunes disc burning.

The "Sound Check" does not work very well, if at all in the "Audio" mode.

I'll download your link & get back to you.

Thanks,

Gerry

[semperfi57]

Your link has been downloaded-No change.