Yana :: Imaginative Audio and Video Solutions

Comparison of Movie Sound Formats

Surround Formats

Dolby Pro Logic

Dolby Digital

Dolby Digital EX

DTS Digital Surround

DTS-ES

DTS 96/24

Media

DVD, VCR, TV, LD, CD

DVD, LD

DVD, LD

DVD, LD, CD

DVD

DVD

Reproduction Channels

4 Channels

1-5.1 Channels

6.1 Channels

5.1 Channels

6.1 Channels

5.1 (6.1) Channels

Channel Configuration

Left, Centre, Right and Surround

Left, Centre, Right, Left Surround, Right Surround and LFE

Left, Centre, Right, Left Surround, Centre Surround Right Surround

Left, Centre, Right, Left Surround, Right Surround and LFE

Left, Centre, Right, Left Surround, Right Surround

Left, Centre, Right, Left Surround, Right Surround and LFE

-

-

(Low Frequency Effect)

and LFE

(Low Frequency Effect)

and LFE

(Low Frequency Effect)

Encode System

Matrix

AC-3 (Digital)

AC-3 (Digital)

Coherent Acoustics

Coherent Acoustics

Coherent Acoustics

Sound Process

Matrix

Discrete

Discrete and Matrix

Discrete

Discrete and/or Matrix

Discrete (Discrete and Matrix)

Frequency Response (Front)

20-20,000 Hz

20-20,000 Hz

20-20,000 Hz

20-20,000 Hz

20-20,000 Hz

20-40,000 Hz

Frequency Response (Rear)

100-7,000 Hz

20-20,000 Hz

20-20,000 Hz

20-20,000 Hz

20-20,000 Hz

20-40,000 Hz

Resolution Ratio

-

20 Bit

20 Bit

20 Bit

20 Bit

24 Bit

Sampling Frequency

-

48 kHz

48 kHz

48 kHz (LD/CD: 44.1 kHz)

48 kHz (LD/CD: 44.1 kHz)

96 kHz

Conversion Rate (CD/LD)

-

348 kbps (LD)

348 kbps (LD)

1,411 kbps

1,411 kbps

1,411 kbps

Conversion Rate (DVD)

-

448 kbps

448 kbps

1,536 kbps

1,536 kbps

1,536 kbps

Remarks

-

-

Centre surround signal is matrix processing

-

Centre surround signal is discrete or matrix processing

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