M4A file info
Upload an M4A file and inspect its technical details — codec, bitrate, sample rate, channels, and duration.
Upload an M4A file and inspect its technical details — codec, bitrate, sample rate, channels, and duration.
M4A files vary more than they look: AAC at assorted bitrates, voice memos at speech settings, even lossless ALAC. The inspector reads the codec and numbers so you know which one you have before converting or sharing.
The codec field answers it: ALAC is lossless, AAC is lossy. They share the .m4a extension, which is why checking matters.
AAC, typically mono at moderate bitrates tuned for speech. The inspector shows the exact values for your file.
No, analysis happens locally in your browser.