P738 TELETEXT-TOOLS 738 Wed 01 Jan
00:00/00 PAGE ___
TELETEXT-TOOLS
FORMAT DETECTOR
Detect audio format by signature • show container hints • optional duration decode • client-side • no scroll
P738 AUDIO
P738

INPUT

DROP AUDIO FILE
Reads the first bytes (“magic bytes”) • or press CHOOSE
NAME
SIZE
MIME
EXT
MAGIC
HEX
ASCII

RESULT

STATUS
READY — DROP FILE
TYPE
CONF
HINT
DUR
RATE
CH
DECODE
NOTE
Signature detects container; codec can be uncertain
TIP
Use TRY DECODE for duration if supported

HELP

WHAT THIS DOES

Reads the file header to identify common audio containers.

Shows “magic bytes” (signature) and simple hints.

No uploads • runs in your browser.

HOW TO USE

1) Drop an audio file

2) Press ANALYSE for signature

3) Optional: TRY DECODE for duration

Keyboard: ESC returns to PAGE 1

SIGNATURES

WAV: “RIFF … WAVE”

OGG: “OggS”

FLAC: “fLaC”

MP4/M4A: “ftyp”

MP3 often starts with ID3 or frame sync bytes.

LIMITATIONS

Some files are ambiguous without deeper parsing.

TRY DECODE depends on browser codec support.

If it fails, convert to WAV and retry.