mediAvatar Audio Converter Pro 

mediAvatar Audio Converter Pro for Mac covers all the audio conversion functions you may need: audio converter, audio extractor, CD ripper, and CD burner, allowing you to convert between audio formats (MP3, WMA, WAV, AAC, FLAC, OGG, APE), extract audio from video files, rip CDs to music files, and burn music CD from video and audio files.

You can use this audio converter to adjust the effects (fade-in, fade-out, volume normalize, band pass, chorus, flanger, echo, speed) of audio files before you convert video/audio files or rip CDs to music files, convert one file to different audio files at one go, clip audio segments you favor, split audio files, then convert or rip or burn audio files.