Avchd format – Sony DSC-TX55 User Manual
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Top page > Precautions/About this camera > About this camera > AVCHD format
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 compression 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.
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
*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.
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