+

+

Lt

Rt

S

R

C

L

BPF -3dB 90º

Ø-3dB

Dolby B

0,707S) (j - 0,707CL Lt ⊕= 0,707S) (j 0,707CR Rt ⊕⊕=

Diagrama de bloque de un decodificador pasivo de Dolby Surround

- 1930’s (Bell Labs): LCR- 1941 (Walt Disney – Fantasia): LCRS- 1950’s (Cinemascope – Fox): LCRS- 1970’s (Quadraphonic) Lf Rf Lr Rr- 1970’s (Cinerama): L Lc C Rc R Ls Rs- 1979 (Dolby Stereo): LCRS- 1992 (Dolby Digital): LCR Ls Rs + LFE- 1993 (DTS): LCR Ls Rs + LFE- 1994 (SDDS): L Lc C Rc R Ls Rs + LFE

BRIEF HISTORY OF SURROUND SOUND

La formula de Dolby Surround

22.1.a – Sonido Surround

© S de Castro - 10/09/02SAE Institute R’dam

Sprockets

Optical audiotracks

Frames

Optical audiotracks

Frames

Dolby Digital here

Sprockets

Optical audiotracks

Frames

Sprockets

DTS Sync here

Optical audiotracks

Frames

Sprockets

SDDS Track here

Audio Analogo en una pelicula

Pistas SDDS en una peliculaPista de sinc DTS en una pelicula

Pista de Dolby Digital en una pelicula

22.1.b – Sonido Surround

© S de Castro - 10/09/02SAE Institute R’dam

22.1.c – Sonido Surround

© S de Castro - 10/09/02SAE Institute R’dam

22.1.d – Sonido Surround

© S de Castro - 10/09/02SAE Institute R’dam

22.1.e – Sonido Surround

© S de Castro - 10/09/02SAE Institute R’dam

22.1.f – Sonido Surround

© S de Castro - 10/09/02SAE Institute R’dam

Configuracion ITU Configuration para cine

22.1.g – Sonido Surround

© S de Castro - 10/09/02SAE Institute R’dam

MultitrackDigital Recorder

DTS-E175-01(Optional)

L, R

LS, RS

C, LFE

DTS CAD-4Decoder

for monitoring 5.1

DLTEXABYTE

CD-RDVD-RAM

DTS CAE-4

Professional

Encoder

MultitrackDigital Recorder

DTS BITSTREAMOutput (AES/EBU)

AESEBU

LFE

RS

LS

R

C

L

AESEBU P.C.

DTS Graphical User Interface

Bitstream Recorder

Digital AudioWorkstation

(i.e. TASCAM, GENEX, ADAT)Timecode

(TC)

Digital AudioWorkstation

(i.e. PROTOCOL, Sonic Solutions)

Digital Desk(i.e. Neve, SSL, Otari)

{- OR -

- OR -

- OR -

- OR -

AESEBU

BussOutputs

(from console)

Encoder Decoder

C-RMonitors

Configuracion de monitoreo

Diagrama de flujo de senal de DTS

22.1.h – Sonido Surround

© S de Castro - 10/09/02SAE Institute R’dam