Different kinds of files
An image stores pixels; an audio file stores a sound waveform. Neither contains the other, so no tool can turn a picture into a sound recording.
Looking to turn a FITS into M4A? Here's the honest answer — and the conversions that actually work.
Turn your file into a share-worthy AI Effect — one tap, no prompts.
FITS (Flexible Image Transport System) is the standard format of astronomy, storing telescope and scientific image data with extensive metadata headers.
FITS opens in astronomy software like SAOImage DS9, FITS Liberator and Astropy; convert to PNG/TIFF to view normally.
M4A is an AAC-based audio format common on Apple devices and iTunes — better quality than MP3 at the same size.
M4A plays on Apple devices, iTunes and most modern players.
No. Images and audio are fundamentally different, so there's nothing to convert. You can convert your FITS to PNG, JPG or TIFF instead.
Maybe a video or slideshow with audio — use a video tool. A FITS image can't hold sound.
FITS converts cleanly to PNG, JPG or TIFF — free, no sign-up, no watermark.