Datavideo PTC-140NDIW Instruction Manual page 50

Items Descriptions
Encode Type
Select an encode type for your input
audio source. The available encode
types include MP3, AAC and G.711A.
Sample Rate
Select a sample rate for your input
audio source. The higher the sample
rate, the better the audio quality.
Sample Bits
Select the sample bits for your input
audio source. The default is 16.
Bit Rate
Select a bit rate for your input audio
source. Available bit rates are:

32 Kbps

48 Kbps

64 Kbps

96 Kbps

128 Kbps
Channel
Set your input audio source to Mono.
Volume Slider
Adjust the volume of your input audio
source using the volume slider (Min: 1
/ Max: 10).
50