Observed arrival · 2026-09-11
Tune Check Asks Whether Your “320” Is Really 320
A browser-based audio checker that scans MP3, WAV, FLAC, M4A, AAC, OGG, and Opus files for signs of upscaled, falsely labelled audio.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The checker accepts batches of up to 20 files and inspects their decoded frequency content in the browser rather than uploading the audio. It can process several common lossy and lossless formats, while AIFF and ALAC are excluded because the page says Chrome cannot decode them. Red results may include a frequency-height badge, and only the track name is sent to the catalogue for files that fall below 320.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue