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Can the Mesh be used for streaming voice?

Hi there~~ I'm trying to create a voice streaming application with the Mesh and the Nordic Thingy:52 I downloaded both the nRF5 SDK 14.2 & Mesk v1.0 to test the Mesh's light_switch example. Later on my custom PCB, I'm about to use the nRF52832 MCU, I2S speakers and microphone.

The blog (showing the radio streaming example), was great! Plus, the webpage introduces that the Thingy is capable of microphone streaming. Suppose I have 5 nodes. 1 node is for receiving the microphone input. Other 4 nodes are used to hear the voice when a microphone input is used.

I'm worried about these; is the Bluetooth Mesh fast enough to stream voice to other nodes? Also, are there audio file handling (MP3, WAV, OGG, etc) support available from Nordic? The Helix MP3 decoder library looks nice, but it looked quite challenging to port it on the nRF52 series.

As always, thanks for your time~~~

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  • Hi there~ It sounds like this has pros and cons, hmm. From the link,

    When enabled, all communication in the core mesh will happen through Instaburst instead of regular advertisers, yielding higher throughput, but breaking compatibility with other Bluetooth Mesh implementations.

    @David Edwin. I'm trying to test that "instarburst" feature. Is this feature configurable when using the light_switch example? I couldn't find the option in the example. Lastly, do you have any comments about audio file handling supports, sir?

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  • Hi there~ It sounds like this has pros and cons, hmm. From the link,

    When enabled, all communication in the core mesh will happen through Instaburst instead of regular advertisers, yielding higher throughput, but breaking compatibility with other Bluetooth Mesh implementations.

    @David Edwin. I'm trying to test that "instarburst" feature. Is this feature configurable when using the light_switch example? I couldn't find the option in the example. Lastly, do you have any comments about audio file handling supports, sir?

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