I have a mixture of songs all in MP3 format for my MP3 player.
Some songs were transfered from CD's (WAV format) and some were recorded from LP's using Audacity and saved initially in FLAC format. The CD origin songs are a reasonable volume but the LP origin songs are much too soft. The volume control on MP3 players cannot increase the volume to a reasonable level.
Is there a way of increasing the volume please? (preferably in bulk!)