sonicTry a before-and-after example using our original six-second sample. No upload needed.
Generated locally with the same audio engine used for your files.
3D stereo changes width by separating left and right into a shared center signal and a difference signal. Sonic scales the difference and recombines them. This can spread stereo details outward or bring them toward the center.
Width ranges from 0 to 250%. At 0%, the first two channels are collapsed to their shared center. At 100%, their stereo balance is unchanged. Above 100%, differences are emphasized; the default is 160%.
Try 120–160% on a stereo recording with distinct left and right details. Compare with 100%, then listen in mono if your playback device allows it to check how the mix translates.
This cannot widen a mono recording because there is no left/right difference to amplify. Extreme width can emphasize phase differences and sound hollow. It does not create a surround or binaural scene; use 8D for moving left/right placement.
The built-in sample is mono. This effect needs a source with different left and right channels to change its width.
Upload your audio or try the sample, adjust the controls above, then click Apply effects. Select Original and Result to compare. Change the settings and apply again to revise. Every revision starts from the untouched original, and Download WAV saves the latest applied version. The player’s Volume control changes only listening volume.