m4a

Hi, my os - windows10, cpu- i5-4670k, mobo- gigabyte z87x-ud3h, Gpu- gtx 1050ti. can someone please recommend me a software or something which can decrease or discard any unwanted loud background music from a recorded audio of conversation between 2 persons so that the conversation can be heard...

hi, i'm using windows 10. please suggest me a good easy to use free software for audio files like mp3,m4a etc editing without loosing any quality. like i can can cut multiple pieces of source audio and join multiple source audio pieces in single one easily without loosing any quality.