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AXIS P8221 - Audio
Select the desired audio Encoding format, G711 μ-law, G726 or AAC.
Select the required Sample rate (number of times per second the sound is sampled). The higher the sample rate, the better the
audio quality and the greater the bandwidth required.
Changing the Bit rate changes the audio compression level and hence audio quality. A higher bit rate can improve audio
quality but requires more bandwidth.
AXIS P8221 can be configured to trigger an event if the incoming sound level rises above, falls below, or passes the set Alarm
level.
Audio Output
If the sound from the connected speaker (connected to Audio 1 or Audio 2) is too low or too high, adjust the Output gain.
To use the built-in amplifier for speakers connected to Audio 2, check Enable speaker amplifier (Audio 2).
Note:
If speakers are connected to both Audio 1 and Audio 2, the Audio 1 output will be used.
The settings under Audio Input (see above) also determine the audio output format used when sending audio to AXIS P8221
from AXIS Media Control. See table below for details.
Audio detection
AXIS P8221 can be configured to alarm when the sound detected by the microphone rises above, falls below or passes the
alarm level:
1. Go to Setup > Audio > Audio Settings and set the alarm level.
2. Go to Setup > Events > Event Types and create a triggered event, see How to set up a triggered event, on page 22.
3. Select Audio detection from the Triggered by... list.
4. Select the desired event action(s) under When triggered..., see page 22.
See Events, on page 21, for more information about events.
Audio input settings Audio output format
G.711μ-law μ-law 16 kHz
G.726 24 kbit/s G.726 24 kbit/s
G.726 32 kbit/s G.726 32 kbit/s
AAC μ-law 16 kHz
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