Multi-Track Audio Joiner & Merger

ROUTING: CROSSFADE CONCATENATION

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Drop multiple audio files here or click to select

Select 2 or more files (WAV, MP3, FLAC, M4A) to merge into a single seamless audio file

TRACK PLAYBACK ORDER • DRAG OR USE ARROWS TO REORDER:

NO TRACKS LOADED — DROP MULTIPLE FILES ABOVE

TRANSITION MODE:

TOTAL MERGED DURATION: 00:00.000

Ready. Drag and drop multiple audio tracks to combine them.

Continuous Audio Buffer Concatenation & Equal-Power Crossfading

Merging multiple audio tracks requires calculating an uninterrupted temporal timeline inside an OfflineAudioContext. When joining tracks end-to-end, standard abrupt cuts can cause abrupt level shifts or audible clicks if the adjacent waveforms meet at conflicting phase angles.

Studio LOOS provides configurable crossfade envelopes (from 0.5s to 2.0s). During the crossfade region, Track A smoothly ramps down in gain while Track B ramps up, creating an imperceptible transition ideal for continuous DJ mixtapes, seamless album listening, podcast assemblies, and soundscapes.