support 48KHz audio ADPCM for voice-RCU

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Thu, 2018-04-19 06:13

ilsoo.jung

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Last seen:1 year 7 months ago

加入:2018-02-14 10:37

support 48KHz audio ADPCM for voice-RCU

Dear Dialog,

关于DA14585 Voice-RCU EVK, some question.
based on the document, this EVK SW seem to support support 8KHz/16KHz sampling rate with ADPCM encoding for voice transmission via HoGP/Dialog Audio service.
if this limitation is not cause by BLE bandwidth and/or MCU<->SRAM<->BLE stack data throughput, is there any plan to support more higher sampling rate(e.g, 32KHz/48KHz) for voice transmission?

thanks,
ilsoo

Device:

DA14585

Fri, 2018-04-20 16:49

MT_dialog

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Last seen:2 months 5 days ago

加入:2015-06-08 11:34

Hi ilsoo.jung,

The choice of the device to have this kind of sampling rate was due to many factors, one was the limitation of the BLE since having this with larger sampling rate would require DLE and can't be sure that most of the market phones will support that feature, and also the 8kHz to 16kHz were sufficient for the functionallity of the demo. So no, currently there are no plans for supporting larger sampling rates on the RCU.

Thanks MT_dialog