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Topic: Increase volume via script file ? (Read 4913 times) previous topic - next topic
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Increase volume via script file ?

Not sure if this is the right section or not ??

Here is the issue, I have mp3 files, that have a relatively low volume (when I play them in the car for instance I have to crank the vol. up all the way)
so I'm wondering if there is a feature or property I can change to increase the vol level.

As a followup question,
since I sometimes have many of these to do, is there a way to do this via code, script file, program or whatever,
so as to be able to do many at once. In other words, change that parameter via a script.

p.s. not sure that this would matter, but these aren't music files, just speech.


Increase volume via script file ?

Reply #2 –
If MP3gain works for you, you can ignore everything I'm going to say...      MP3gain is a GREAT tool and I ReplayGain/MP3gain almost everything!

Note that if you boost the volume too much you can get clipping (distortion).*

By default, MP3gain is set to "Don't clip...", but you can change that it it's not getting loud enough.

You can get sometimes clipping on a file that doesn't sound  loud because our ears don't respond instantly to short-term peaks, and it only takes one "loud" spot in the recording (to get distortion at that spot).

The good news is that a little clipping in speech isn't as objectionable as with music.
 
You can also increase the Target Volume, but the Don't Clip option will override the Target setting.

MP3gain (or the other ReplayGain variations) does not normalize ("maximize") the volume.  It's trying to make all of your files have the same  volume.    i.e. If you apply MP3gain to all of your music files, you'll find that many (or most) are reduced in volume and a few quiet songs are boosted.  A lot of people complain about their music being quieter when they first try RelayGain or MP3gain.

If you want to normalize/maximize your files, mp3DirectCut can do that.  It supports batch processing, so you can write a script.  Again, normalizing/maximizing won't make your files equally loud-sounding.  And, if you choose to normalize above 0dB you can get clipping.




* Just to further confuse things....  MP3 can go over 0dB without clipping.  But, the data might be  clipped during decompression/playback.

Increase volume via script file ?

Reply #3 –
Quote from: DVDdoug on
MP3gain (or the other ReplayGain variations) does not normalize ("maximize") the volume. It's trying to make all of your files have the same volume. i.e. If you apply MP3gain to all of your music files, you'll find that many (or most) are reduced in volume and a few quiet songs are boosted. A lot of people complain about their music being quieter when they first try RelayGain or MP3gain.

You can tell MP3Gain to simply apply a constant gain; you don't have to adjust the target gain and you don't have to disable the no-clip option (which is actually disabled by default).

[attachment=8433:Untitled.gif]

If you want to see if stuff is clipping you can simply run the analysis.  Once the analysis information is present, it will refresh each and every time you make an adjustment.

...OR BETTER YET!...

You can simply enable maximizing features...

[attachment=8434:Untitled3.gif]

So, yes, MP3Gain can "normalize ("maximize") the volume" quite easily!

...from someone who is intimate with both MP3Gain and (the very clunky) mp3DirectCut, I'd go with MP3Gain; hands down!

Increase volume via script file ?

Reply #4 –
I have downloaded the mp3gaim program,
could you give me the 123 steps on how to do this.

Thanks.

p.s. a reminder that this is
speech, not music, so not too fussy, just need to increase the vol.

Increase volume via script file ?

Reply #5 –
made adjustments as described and worked.

Now a follow up question, if you had to do many of these, is there a way to write a script file
to adjust/change the same parameters that mp3gain did ?

Increase volume via script file ?

Reply #6 –
Yes.  The program I recommended earlier is MP3GainGUI which uses mp3gain.exe.  Mp3gain.exe is a command-line application which you can use in a script file.  You can find it in the folder where the GUI was installed.  It is also available for download separately at the bottom of the page I linked earlier.

Increase volume via script file ?

Reply #7 –
So what I have is mp3gain ver 1-2-5  which is a GUI

Do you have a sample of a script file that I might use, i.e. the commands/terms etc.