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Avchd ™ Format Specifications - Sony Handycam AVCHD Technology Handbook

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AVCHD
format specifications.
Picture Format
Number of Pixels
Aspect Ratio
Video Compression
Luminance Sampling Frequency
Sampling Format
Bits per sample
Audio Format
Audio Bit Rate
Audio Mode
Video Bitrate after Compression
For maximum flexibility, the AVCHD format supports both 1080- and
720-line High Definition as well as Standard Definition video.
AVCHD, HD Mode
1080/60i
720/60p
1080/50i
720/50p
1080/24p
720/24p
1920 x 1080
1280 x 720
1440 x 1080
16:9
MPEG-4 AVC / H.264
74.25 MHz
4:2:0
8 bit (Y, Cb and Cr)
Dolby Digital (AC-3)
64 to 640 kbps
1 to 5.1 channel
MPEG-2 transport stream
Up to 20 Mbps variable
Picture format:
The number of scanning lines, followed by the number of interlaced fields or
progressive frames per second, followed by the designation "i" for interlaced scanning or "p"
for progressive scanning.
Number of pixels:
Horizontal x vertical.
Aspect ratio:
Ratio of picture width to picture height.
Luminance sampling frequency:
white (luminance or "Y") channel , measured in megahertz (millions of cycles per second).
Sampling format:
Refers to the structure of the three video channels: Y (luminance), Cb (blue color
difference, Y-B), and Cr (red color difference, Y-R).
Bits per sample:
The number of bits devoted to each digital video sample.
Bitrate:
The recorded data rates for audio and video, measured in bits per second. "kbps" stands for
kilobits per second. "Mbps" stands for megabits per second.
AVCHD, SD Mode
480/60i
576/50i
720 x 480
720 x 576
4:3 or 16:9
13.5 MHz
Linear PCM
1.5 Mbps (2 channel)
1 to 7.1 channel
The number of digital video samples per second for the black-and-
HDV 1080 (for comparison)
1080/60i
1080/50i
1080/24p (option)
1440 x 1080
16:9
MPEG-2
55.6875 MHz
4:2:0
8 bit
MPEG-1 / Audio Layer II
384 kbps (fixed)
Stereo 2 channel
Max 25 Mbps (fixed)

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