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C211 - video over RTSP/ONVIF has no audio

C211 - video over RTSP/ONVIF has no audio

C211 - video over RTSP/ONVIF has no audio
C211 - video over RTSP/ONVIF has no audio
2025-06-04 00:54:58
Tags: #ONVIF/RTSP #Feature Request
Model: Tapo C211  
Hardware Version:
Firmware Version:

Last week I purchased a pair of C211 cameras, specifically to integrate them with my existing Home Assistant setup. Some tweaks later, and I finally have the system working and recording straight into my NAS. The only problem is, the recordings have no audio! Neither the RTSP nor ONVIF backends supply any audio, which is odd because I know for a fact that the device can record audio through the Tapo app and the internal Micro SD card. Is the limitation intentional? Can it be patched in via firmware update? Or is it intentionally locked behind the Tapo Care subscription?

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#1
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5 Reply
Re:C211 - video over RTSP/ONVIF has no audio
2025-06-04 09:20:49

  @csolisr 

Hi,
The reported audio issue has nothing to do with the Tapo Care service. Please confirm the following information for the reported issue.

1. Can you hear the audio when watching the camera's live feed via RTSP/Onvif on your Home Assistant?
2. Please check if the same issue occurs when establishing the RTSP/Onvif connection with other third-party apps, such as iSpy or VLC.

Best Regards

>> What to do if the Detection feature is not working on the TP-Link Camera. >> Enhance Video Clarity: Troubleshooting Tips for Improving Camera Video Quality. >> General questions about the TP-Link camera's Pan & Tilt feature.
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#2
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Re:C211 - video over RTSP/ONVIF has no audio
2025-06-04 15:05:26
1. No, there is no audio when streaming via Home Assistant. 2. There is no audio when streaming through other applications, such as MotionEye or VLC. On VLC, I could confirm that the stream does not even contain an audio channel, only video. Using the Tapo app directly, however, I get full audio both incoming and outgoing.
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#3
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Re:C211 - video over RTSP/ONVIF has no audio
2025-06-05 08:15:03

  @csolisr 

Hi,
Please ensure the firmware of the Tapo C211 is the latest one. If so, send me the camera's firmware and hardware version.
Best Regards

>> What to do if the Detection feature is not working on the TP-Link Camera. >> Enhance Video Clarity: Troubleshooting Tips for Improving Camera Video Quality. >> General questions about the TP-Link camera's Pan & Tilt feature.
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#4
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Re:C211 - video over RTSP/ONVIF has no audio
2025-06-05 13:44:17

Firmware is version 1.4.5, not sure what is the hardware version but I bought both devices from Amazon last month so they should be the latest hardware revision.

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#5
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Re:C211 - video over RTSP/ONVIF has no audio
2025-06-06 06:49:25

  @csolisr 

Hi,

I have escalated your case to our tech team, and they will contact you via email to further assist you. Please wait patiently.
Best Regards

>> What to do if the Detection feature is not working on the TP-Link Camera. >> Enhance Video Clarity: Troubleshooting Tips for Improving Camera Video Quality. >> General questions about the TP-Link camera's Pan & Tilt feature.
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#6
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Replies: 5

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ONVIF/RTSP Feature Request
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