Page 344 - Manual_Movie Edit Pro 2021_EN_Neat

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Scene change detection

If this option is activated the scenes will be detected during encoding, thus allowing
you to insert an I frame (view page 348) after a scene change.

Audio codec:

Under "Audio", "AAC" (view page 344) is preset. If you have chosen an AVCHD
transport stream from the presets, "AVCHD audio track" will be available.

AAC

AAC was developed by MPEG, the Moving Picture Experts Group, as an audio data
compression process that was specified as a further development of MPEG-2
Multichannel in the MPEG-2 standard.

AAC is equally suitable for encoding general audio information and not especially
optimized for certain types of audio material.

AAC audio can be encoded with a sample rate of 8000, 16000, 24000, 32000 or
48000 Hz in either mono or stereo. By default, the sound is set to 48000 Hz stereo.
The higher the sample rate is, the larger the resulting file and higher the audio quality.
You can use the technical specifications of your playback device to help with this.

Advanced audio settings:
• The bit rate can be set between 6 and 192 kbit/s. 160 kbits/s is active by default.
The higher the value is, the larger the resulting file and higher the audio quality.
After a certain limit, additional improvements to audio quality will not be
perceived. Bit rates under 64 kb/s are not recommended.
• As an MPEG version, set MPEG-4 or the older, proven MPEG-2 format.
• For the File Header Type, choose either RAW or ADTS. The "Header" indicates
an explanatory head for the beginning of the file segment, which in fact takes up
extra space, but is required for decoding under circumstances.
- RAW indicates material which does not include a file header in audio format.
The audio material is therefore transferred directly without any special
additional information (raw).
This requires that decoding routines are able to process the material without
the explanatory file header. Especially in case "exotic" sample rates are set,
this can lead to problems during RAW encoding.
- ADTS indicates a file header type which contains information for encoded
audio material. In case of doubt, select this file header type, since fewer
problems can be expected in this case.

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