End Position, you can choose 'To the End', 'End Second' and 'End Time', the time format is hours : minutes : seconds.Start Position, you can choose 'From the Start', 'Start Second' and 'Start Time' option, the time format is hours : minutes : seconds.Decrease from 10% to 100%, or from 1 decibel to 30 decibel.Increase from 10% to 200%, or from 1 decibel to 30 decibel.Once the upload is complete, the converter will redirect a web page to display the conversion results.Click the 'Convert' button to start uploading your files.In addition, not only MP3, you can use this tool to split other audio files, such as M4A, MIDI, WAV and more, however, for these other audio files, the output file is MP3 audio. With the 'Duration' option, you can change a selected part of the audio from the video, instead of the whole video. With the 'Volume' option, you can change your audio volume by percentage (such as 50%, 100% and more) or by decibels (such as 1 dB, 10 dB and more), for example, the 'Increase 100%' value means to double the volume of your audio file, while the 'Decrease 100%' value means that you create a silent audio (no sound). If the volume of your MP3 music is very light, it can make the sound louder, conversely, if volume is loud, it can make the sound lighter.

This free tool can help you increase or decrease the volume of MP3 audio.

Download youtube to mp3 trimmer