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Surround format channel distribution in Logic Pro

The following table provides details on the channels used by each of the supported surround formats in Logic Pro.

Surround format

Channels used

Quadraphonic

L - R - Ls - Rs

LCRS (Pro Logic)

L - C - R - S

5.1 (ITU 775)

L - C - R - Ls - Rs - LFE

5.1.2

L - C - R - Ls - Rs - Ltm - Rtm - LFE

5.1.4

L - C - R - Ls - Rs - Lt - Rt - Lts - Rts - LFE

6.1 (ES/EX)

L - C - R - Ls - S - Rs - LFE

7.1

L - C - R - Lm - Rm - Ls - Rs - LFE

7.1 (SDDS)

L - Lc - C - Rc - R - Ls - Rs - LFE

7.1.2

L - C - R - Lm - Rm - Ls - Rs - Ltm - Rtm - LFE

7.1.4

L - C - R - Lm - Rm - Ls - Rs - Lt - Rt - Lts - Rts - LFE

Table key

  • C = Center

  • L = (Front) Left

  • Lc = Left Center

  • LFE = Low Frequency Effects

  • Lm = Left Mid

  • Ls = Left Surround (Rear Left)

  • Lt = Left Top

  • Ltm = Left Top Mid

  • Lts = Left Top Surround

  • R = (Front) Right

  • Rc = Right Center

  • Rm = Right Mid

  • Rs = Right Surround (Rear Right)

  • Rt = Right Top

  • Rtm = Right Top Mid

  • Rts = Right Top Surround

  • S = Surround (Rear Center)

Logic Pro User Guide: Apple Books | PDF

Logic Pro Instruments: Apple Books | PDF

Logic Pro Effects: Apple Books | PDF

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