11.9 Configure the settings relating to audio [Audio]
The settings relating to audio can be configured on this page.
Note
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Images and audio will not be synchronized. Therefore, images and audio may not always match.
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Audio may be interrupted depending on the network environment.
[Audio mode]
Select the communication mode used for audio data transmission/reception between the camera and the PC from the following.
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Off: Does not receive/transmit audio between the camera and the PC. Therefore, the settings and controls relating to audio will be invalidated.
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Mic input: The PC receives audio data from the camera. Audio can be heard with images on the PC. Images and audio will not be synchronized.
Note
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Howling may be generated depending on usage conditions. If howling is generated, prevent sound generated by the PC from entering the PC microphone.
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When “Multicast” is selected for “Transmission type” on the [JPEG/H.264] tab of the “Image/Audio” page, “Audio output” will become unavailable while monitoring H.264 images. To enable “Audio output”, click the [JPEG] button on the “Live” page.
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“Audio recording” and “Audio detection” only operate when “Mic input” is selected for “Audio mode”.
[Audio encoding format]
Select the audio encoding format from G.726 and G.711.
Note
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G.711 is available only when “Mic input” is selected for “Audio mode”.
[Audio bit rate]
Select “16kbps” or “32kbps” for the audio bit rate used to transmit/receive audio data.
Note
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When using “Bandwidth control(bit rate)” (→
17.1 Configure the network settings [Network]) with a small bit rate, select “16kbps” for “Audio bit rate” if you want to prioritize the JPEG refresh interval or the H.264 transmission priority.
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[Audio bit rate] is unavailable when “G.711” is selected for “Audio encoding format”.
[Mic input volume (Camera to PC)]
Select a volume level on the PC to hear audio transmitted from the camera.
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Mic High: The volume level will become high. This setting will be applied when audio is input to the camera using a microphone.
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Mic Middle: The volume level will become middle. This setting will be applied when audio is input to the camera using a microphone.
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Mic Low: The volume level will become low. This setting will be applied when audio is input to the camera using a microphone.
Note
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These settings are linked with the volume settings of “Audio recording” and “Audio detection”.
[Mic input interval (Camera to PC)]
Select an interval for audio reception from the following.
20ms/ 40ms/ 80ms/ 160ms
Note
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When a shorter interval is selected, the delay time will be shorter. When a longer interval is selected, audio interruption may be diminished even though the delay time will be longer. Select the interval according to the network environment.
[Permission level of audio trans./recep.]
Select an access level for audio transmission/reception from the following.
1. Level 1 only/ 2. Level 2 or higher/ 3. All users
