Adobe Audition (formerly Cool Edit Pro) is a digital audio workstation, which allows multi-tracks, voice recording and a lot more.
Recording voice with Adobe Audition
- Go: File > New > File
- Click record button... that's it!
Increasing volume on a Sound File
- Open sound file.
- Select all [ctrl][a].
- Go: Effects > Amplitude and Compression > Amplify... ... and amplifying 10 dB gain will probably be plenty.... you may have to undo and retry.