Sony DSC-TX9 - Manual (Page 182)

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AVCHD format
The AVCHD format has been developed for high-definition digital video cameras when recording an HD
(High-Definition) signal at the 1080i
*1 or 720p *2 specification using high-efficiency compression coding
technology. The MPEG-4 AVC/H.264 format is adopted to compress video data, and the Dolby Digital or
Linear PCM system is used to compress audio data.
The MPEG-4 AVC/H.264 format is capable of compressing images at higher efficiency than that of the
conventional image compressing format. The MPEG-4 AVC/H.264 format enables a high definition video
signal shot on a digital video camera recorder to be recorded on 8 cm DVD discs, hard disk drive, flash
memory, memory card, etc.
Recording and playback on the camera
Based on the AVCHD format, your camera records with the high definition image quality (HD) mentioned
below.
*1
1080i specification
A high definition specification which utilizes 1,080 effective scanning lines and the interlace system.
*2
720p specification
A high definition specification which utilizes 720 effective scanning lines and the progressive system.
*3
Data recorded in AVCHD format other than the above mentioned cannot be played on your camera.
Video signal
*3
: 1080 60i-compatible device
MPEG-4 AVC/H.264 1920×1080/60i, 1440×1080/60i
1080 50i-compatible device
MPEG-4 AVC/H.264 1920×1080/50i, 1440×1080/50i
Audio signal: Dolby Digital 2ch
Recording media: Memory card