Operation Manual

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The Audio Encoder settings provide you with a drop-down box, which includes two choices, as
follows:
AAC (Advanced Audio Coding) is a standardized, lossy compression and encoding scheme
for digital audio. AAC achieves better audio quality than MP3 and has been named a
standard by the Motion Picture Experts Group (MPEG)
AMR (Adaptive Multi-Rate Narrow-Band) is an audio data compression scheme optimized
for speech coding. AMR was adopted as the standard narrowband speech codec by 3GPP
and is widely used in GSM.
NOTE: When you select AMR Encoder for audio, the audio will automatically be encoded using
8 kHz mono for playback on cell phones.
The Audio Bitrate drop-down box provides you with several choices, as can be seen in the figure
below.