Specifications
CD, DVD, BLU-RAY & PlayStation 3 Secrets
(C) www.cardan.nl pag: 13
Audio Storage Formats
As disc based storage medium became popular it was feasible to store audio digitally. In order to store multiple channels (up to
7.1) efficiently, many formats that took advantage of compression and encoding were invented. The first digital format was
basically the CD (redbook), which stored 44.1kHz of Linear PCM (unencoded and already decompressed).
The DVD introduced 48kHz sample rate, and many types of encoding. The following table describes the various audio formats
(those in pink are not supported by PS3).
Storage
Type
Audio Format
Storage
Format
Compression
Format
Channels Bits
Sampling
frequency
Bitrate Protection
Blu-ray
Disc
Linear PCM Linear PCM None 7.1 16 48kHz 4.6Mbit/s AACS
Blu-ray
Disc
Dolby TrueHD Dolby TrueHD
MLP (Lossless)
7.1 (max
14)
up to 24
96kHz (max
192kHz)
up to 18Mbit/s AACS
Blu-ray
Disc
Dolby Digital
Plus
E-AC-3
Perceptual Coding
(Lossy)
7.1
~20 (16
- 24)
48kHz up to 1.7Mbit/s AACS
Blu-ray
Disc
Dolby Digital AC-3
Perceptual Coding
(Lossy)
5.1
~20 (16
- 24)
48kHz 640kbit/s AACS
Blu-ray
Disc
dts-
HD Master
Audio
Lossless 8 up to 24
96kHz up to 25.4Mbit/s AACS
Blu-ray
Disc
dts-
HD HR
Audio
8 up to 24
96kHz up to 6Mbit/s AACS
Blu-ray
Disc
dts Digital
Surround
Coherent
Acoustics
Perceptual Coding
(Lossy)
5.1
~20 (16
- 24)
48kHz
1.509Mbit/s,
754kbit/s
AACS
DVD Disc Dolby Digital AC-3
Perceptual Coding
(Lossy)
5.1
~20 (16
- 24)
48kHz
448kbit/s,
384kbit/s
CSS
DVD Disc
dts Digital
Surround
Coherent
Acoustics
Perceptual Coding
(Lossy)
5.1
~20 (16
- 24)
48kHz
1.509Mbit/s,
754kbit/s
CSS
SACD Disc
SACD DSD DST (Lossless) 2, 5.1 1 176.4kHz PSP
DVD Disc DVD-Audio Linear PCM MLP (Lossless) 2
16, 20,
24
44.1kHz -
192kHz
9.6Mbit/s CPPM
DVD Disc DVD-Audio Linear PCM MLP (Lossless) 5.1
16, 20,
24
44.1kHz -
96kHz
9.6Mbit/s CPPM
CD Disc
dts 5.1 Music
Disc
DTS
Perceptual Coding
(Lossy)
5.1 16 44.1kHz 1.411Mbit/s None
CD Disc HDCD Linear PCM None 2 20 48kHz None
CD Disc CD Linear PCM None 2 16 176kHz 1.411Mbit/s None
Virtual AAC 48 8kHz - 96kHz
Virtual MP4
Virtual MP3 5.1 16kHz - 48kHz 320kbit/s
Virtual WMV (VC-1)
Virtual ATRAC
Virtual WAV
"Bitstream"ing of Dolby TrueHD audio is currently not supported on the PS3. The PS3 must decode the signal internally and
only the HDMI cable is supported. In Firmware 2.40 and higher, the PS3 is able to remap existing channels to the extra rear
two channels to keep 7.1 output. TOSLINK not supported because of bandwidth issues.
dts-HD Master Audio is supported via "Linear PCM".
dts-HD High Resolution Audio (dts-HD HRA) is a lossy format and is supported in the PS3. However decoding is supported for
"Linear PCM" in the PS3. dts-HD HRA is dts Digital Surround (the Core) plus any extra frequencies or channels up to 7.1. If
selecting "Linear PCM", TOSLINK can only output stereo channels.