Audio Player Online for MP3, FLAC, APE and CUE Albums
An online music player that opens a whole collection: MP3, FLAC, WAV, OGG, Opus and M4A play directly, APE, WavPack, TAK, TTA and Musepack are unpacked in the browser, and a single-file album with a CUE sheet turns into a track list. The 10- or 31-band equaliser cannot overload the output, and loudness across recordings is matched to EBU R128.
How to use it
Drop files or pick a whole folder — it will be remembered. A CUE sheet next to an album splits that file into tracks.
Open “Sound and equaliser”, pick a preset or move the bands by hand — the curve appears over the spectrum.
Turn on per-track or per-album matching so different recordings play at the same level.
Space pauses, arrows seek and change volume, N and P switch tracks, E opens the equaliser, / focuses search.
Play any collection in the browser — no clipping, no level jumps
Drop your music in — and it will sound right
Drag your files in or pick a whole folder — the player reads tags and covers, splits a CUE sheet into tracks and remembers the collection for next time.
MP3, WAV, FLAC, OGG, Opus and M4A play directly. APE, WavPack, TAK, TTA and Musepack are unpacked right here.
Equaliser
In automatic mode the preamp removes exactly as much as the loudest point of the curve adds, so the output cannot clip at any slider position. The correction curve is drawn on top of the music spectrum, so you can see what you are actually changing.
An AutoEQ file for your headphone model (ParametricEQ.txt or GraphicEQ.txt) is read as is — the player works out the headroom itself.
Sound
Loudness is matched to −18 LUFS per EBU R128: the ReplayGain tag is used when the file carries one, otherwise the track is measured in full, otherwise it is remembered from the first listen. Different recordings stop jumping in level.
Crossfeed mixes part of the left channel into the right and back, delayed by 300 microseconds and rolled off on top — the way sound actually travels around a head. On headphones it removes the in-your-head feeling of hard-panned recordings; on speakers it is not needed. foobar needs a plugin for this, Neutron charges for it.
Headphone and room correction
Convolution with an impulse response is what desktop players charge for: Audirvana, HQPlayer, JRiver. Take the AutoEQ FIR file for your headphone model, or a room impulse from REW, and load it here: measured dips and peaks are corrected phase-accurately, which no set of bands can do. Headroom is computed from the impulse itself, so there is no clipping here either. We store nobody else measurements — you bring the file.
