Set AUDIO
The encoder supports encoding of 4 audio streams, of which stream 1 can be
up to 8 channels, and the remaining 3 audio streams are fixed at 2 audio
channels.
(default)/Main profile/Baseline. For H.265 (HEVC), it can be Main profile.
Quantization range: options are Full range(0-255) and Limited range(16-
235) (default).
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AR convert: options are Ignore, Cropping and Padding (default).
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Keyframe interval: options are 15-300 frames. The default value is 60. A
less number will result in a larger file size and less buffer time for seeing the
first frame. To ensure a clear and smooth live broadcast, it is recommended
that the key frame interval be less than or equal to 60 frames. Keyframe
interval is fixed at 20 for NDI |HX3.
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Time code SEI message: options are off (default), system clock, and
embedded. Turn on the switch to get A/V sync between multiple devices
which support this SEI message as well.
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Channel count: for Audio Stream 1, default is 2 channels and it can be
2/4/6/8 channels or follow input. The Audio Stream 2/3/4 streams are fixed
at 2 audio channels.
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Channel map: specify mapping relationship between the output channel
and the source channel.
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AAC: from 16 to 256 Kbps, and the default value is 128 Kbps.
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