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Chapter 6 Working with AVCHD 111
Restrictions During Preview
Preview of AVCHD video in the Log and Transfer window is limited to forward playback
at 100 percent speed. When you scrub with the playhead, video is not updated in the
Preview area until you stop scrubbing. Also, as you enter or scrub to In and Out points,
the playhead snaps to the closest I-frame in your footage, which may be slightly
different from the precise timecode value you specified.
Choosing an AVCHD Destination Codec
Even simple AVCHD decoding for playback requires a lot of processing power. To reduce
the processing demands on your computer, the Log and Transfer window transcodes
your AVCHD footage to a less processor-intensive codec. By default, the Apple ProRes 422
codec is used, but you can also choose the Apple Intermediate Codec.
To choose the destination codec for AVCHD footage transferred in the Log and
Transfer window:
1 In the Log and Transfer window, choose Preferences from the Action pop-up menu in
the upper-right corner of the Browse area.
2 In the dialog that appears, choose a destination codec for the AVCHD plug-in in the
“Transcode to” column, then click OK.
Note: When ingesting AVCHD audio, the AVCHD plug-in is preset to ingest the audio as
Matrix stereo. With some AVCHD camcorders, the audio may sound unbalanced when
ingested as Matrix stereo. To correct the imbalance, select the AC-3 Audio decoder
option in the AVCHD plug-in preferences, and choose Plain Stereo. Then reingest the
AVCHD footage. It’s recommended that you ingest an initial AVCHD clip and check for
this sound imbalance. You can then select the appropriate setting before ingesting the
remainder of your AVCHD footage.