We have a deal on an audio recorder and editor for your Mac called TwistedWave. You might remember Mark Greentree's review of the iOS version for TMO in 2012 where it got 4 stars. TwistedWave supports a huge amount of file formats, including WAV, AIFF, CAF, MP2, MP3, Mpeg4/AAC, ALAC, FLAC, Ogg/Vorbis, WavPack, Wave64, AU, SD2, and WMA. it can detect silence, supports batch processing of multiple files, and includes multichannel editing, as well as mastering features. It's priced at $59, but through our deal you can get it for $20.
Check It Out: TwistedWave Audio Recorder and Editor for Mac: $20