audio checker

Speaking email checker for Apple Mail.

Faster Mail.app spell checker.

XML and XHTML checker.

Spell checker.

Multi-document spelling checker, LaTeX-aware.

Jack (the Jack Audio Connection Kit) is a low-latency audio server.

Enables 5.1 Audio Tracks for Netflix

Convert audiobook to drm-free MP3, AAC, M4B, M4A, WAV, and other audio format.

Convert apple music(.m4p files) to drm-free audio formats.

Free media player for Mac that supports all video and audio formats.