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Some professional models allow recording uncompressed linear PCM audio. ![]() In practice, data rates of 256 kbit/s and 384 kbit/s have been observed. Audio data rate can range from 64 kbit/s to 640 kbit/s. Stereo and multichannel audio is supported. Most AVCHD camcorders record audio using Dolby Digital (AC-3) compression scheme. Progressive-scan video: AVCHD supports 720-line progressive recording mode at frame rates of 24 and 60 frames/s for 60 Hz models and 50 frames/s for 50 Hz models. Interlaced Video: AVCHD supports both AVCHD-SD or Standard Definition and AVCHD 1080i or High Definition interlaced video while AVCHD 1080i is available with most AVCHD camcorders. For example it utilizes legacy 8.3 file naming system while Blu-ray disc uses long filenames.ĪVCHD supports a variety of video resolution and scanning methods but most of the camcorders support only a handful of the video and audio formats allowed in the AVCHD standard. Subtitles are used in some camcorders to timestamp the recordings.Īpart from some differences, the file system of AVCHD is derived from the Blu-ray disc specification. Slide shows are prepared from a sequence of AVC still frames, and can be accompanied by a background audio track. The menu navigation system is similar to DVD-video, allowing access to individual videos from a common intro screen. Stereo and multichannel surround (5.1) are both supported.Īside from recorded audio and video, AVCHD includes many user-friendly features to improve media presentation: menu navigation, simple slide shows and subtitles. ![]() For audio compression, it supports both Dolby AC-3 (Dolby Digital) and uncompressed linear PCM audio. ![]() Part 5: AVCHD Converter for Windows and Macįor video compression, AVCHD uses the MPEG-4 AVC/H.264 standard, supporting a variety of standard, high definition, and stereoscopic (3D) video resolutions.
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