Audio file info
The spec sheet for any media file: codec, sample rate, channel layout, bitrate, and duration — read locally from the file's headers.
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Every audio or video file is really two things stacked together: a container (the .mp3, .wav, .m4a, or .flac wrapper) and a codec (the actual compression scheme storing the samples inside it, like MP3, AAC, FLAC, or uncompressed PCM). This tool parses the header to report both, along with sample rate, bit depth or bitrate, channel layout, and exact duration, so you see the file's real technical fingerprint instead of trusting its name. Because it reads structure rather than decoding the whole file, the answer comes back almost instantly, even on long tracks.
You reach for this when a file has to meet someone else's spec. A Suno export, a stem bounced from your DAW, and a track a collaborator emailed can all look identical in a folder yet differ in bitrate, channel count, or codec — differences that decide whether an upload is accepted or quietly re-compressed. Checking the numbers first tells you whether you're holding a true lossless master or a lossy file that has already discarded detail, which no amount of later re-exporting can put back.
How it works
- 1
Drop any audio or video file.
- 2
Read the parsed details — every stream in the file is listed.
When to use it
- Verifying a track is a 16-bit/44.1 kHz WAV before sending it to DistroKid or TuneCore, since many distributors reject MP3 files as masters.
- Confirming the real bitrate of a Suno-downloaded MP3 before deciding whether it's clean enough to use as a distribution master or only as a rough reference.
- Diagnosing a rejected upload on YouTube or a sync-library submission by checking whether the file is unexpectedly mono, dual-mono, or in an unsupported codec.
FAQ
Why does my "WAV" say it's something else?
File extensions lie; headers don't. This tool reports what's actually inside — handy for catching mislabeled files before they break an upload.
What sample rate should my music be?
44.1 kHz is the music standard (48 kHz for video work). Higher rates are for production headroom, not playback quality.
What's the difference between the container and the codec it reports?
The container is the file wrapper — .mp4, .m4a, .mov, .mkv — and the codec is the format compressing the audio inside it, such as AAC, MP3, or ALAC. A single container type can hold different codecs, which is why two .m4a files can behave differently on the same platform, so the tool lists both to remove the guesswork.
Does a higher bitrate always mean better sound?
Only up to the quality of the source. Re-encoding a 128 kbps MP3 to 320 kbps just wraps the same already-discarded detail in a bigger file; the lost information doesn't come back. Bitrate is a meaningful quality signal only when the file was encoded once from a lossless source.
How can I tell if a file is mono or stereo?
The channel layout field shows the channel count — 1 means mono, 2 means stereo, and more indicates surround. Note that a 2-channel file can still be 'dual mono' with identical left and right, which a header can't distinguish, but the channel count reliably catches true mono files that some platforms reject or auto-upmix.
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