- http://www.mp3louder.com/
- http://www.videosmaller.com/
- http://www.videotoconvert.com/
- http://www.videolouder.com/
- http://www.addaudiotovideo.com/
- http://www.resize-video.com/
- http://www.addmusictophoto.com/
- http://www.videotosave.com/
- http://www.audioextracter.com/
- http://www.cropmyvideo.com/
- http://www.stabilizo.com/
- http://www.audioremover.com/
- http://www.audioconverto.com/
- http://www.m4ronline.com/
- http://www.m4avolume.com/
- http://www.mp3smaller.com/
- http://www.m4aonline.com/
- http://www.imagesmaller.com/
- http://www.imagesatonce.com/
- http://www.jpegsmaller.com/
- http://www.pdfsmaller.com/
- http://www.odt2word.com/
- http://www.pdftopostscript.com/
- http://www.fileconverto.com/
- https://www.facebook.com/FileConverto/
- http://www.privalicy.com/privacy-policy/29673056/
iDealshare VideoGo also works great to increase mp3 volume:
ReplyDeleteStep 1: Click Add File button to add the mp3 file,
Step 2: Click "Setting..." button to open the "Advanced Settings" Window. Click the "Advanced" tab, then go to "Audio" column, click 100% tab on the right side of volume to select volume ratio from the drop-down list.
Step 3: Click the "Profile" drop down button to select desired output format.
Step 4: Click Convert button to start and finishe increase mp3 volume.
It has both Mac and Windows version.