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HD Intelligent Speed Dome Camera
User Manual
73
Picture 6-22 Audio encoding
Audio Encoding Setting
Sampling Rate: It means the sampling times to sound signals by the audio-recording
device in 1 second. The higher the sampling rate is, the more real and natural the
sound reproduction will be.
Encoding Volume: Drag the slide bar to adjust audio encoding volume, i.e. audio
input volume. The larger the value is, the higher the voice will be.
Encoding Format: Select audio encoding format from the dropdown list, by default
G.711 a (PCMA).
Echo Cancellation: Select the checkbox to cancel noises in the input audio and to
improve the audio quality.
Click “Save” to validate settings.
6.4.2
Audio Decoding
Go to
Settings > Camera > Audio > Audio Decoding
, and configure audio decoding.
Picture 6-23 Audio decoding
Audio Decoding Setting
Decoding Volume: i.e. audio output volume, drag the slide bar to adjust audio
decoding volume.
Audio Mixing Recording: Select the checkbox to enable audio mixing recording
function, which is valid only when “ADPCM” is selected.
Note: When “Audio Mixing Recording” is disabled, there will be only heard sound
without calling sound during video recording; when it is enabled, there will be
both heard and calling sound during video recording.
Click “Save” to validate settings.