The Beatles - She — Loves You (stereo Mix)

In 2023, as part of the expanded Red Album (1962–1966) reissue, producer released what is considered the first "true" stereo mix.

For the US release on The Beatles' Second Album , Capitol Records used a similar "duophonic" process, which many fans remember for its distinct, often muddy sound compared to the original mono punch. 3. The 2023 "True" Stereo Remix

Using the Machine-Aided Learning (MAL) "de-mixing" technology developed by Peter Jackson’s team (first used for Get Back and Revolver ), engineers were able to isolate individual instruments and vocals from the mono master.

In 1966, engineer Geoff Emerick created a mock stereo mix for the UK compilation A Collection of Beatles Oldies . He filtered the treble frequencies into one channel and the bass frequencies into the other to create an artificial sense of space.