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Audio
The K220 has an internal pre-amp and can record in mono (single microphone on audio input
1) or stereo (2 microphones).
Mode
–
Selects the mode of audio rec ording - Stereo/Mono.
Record Input Range -
Selects the input range of the K2 20 audio inputs. An appropriate
range should be chosen depending on the specification of the microphones being used.
Last recording peak input -
Shows the peak input voltage from the microphones during the
last recording. This can be used as a guide when setting a value for the rec ord input range.
The peak input level is also shown on the on screen display on the K220 and setting the
audio level is far easier on the K220 unit itself than on this page.
Sample Rate
–
Selects the sampling frequency. The 16k Hz setting will record higher
frequencies (have a wider frequency range) than the 8k Hz setting
Sample Resolution
–
16 bit sample resolution is recommended if there are both very quiet
and very loud audio events. 8bit resolution offers ½ recording space at the expense of higher
noise.