cancel
Showing results for 
Search instead for 
Did you mean: 

BlueCoin入门套件

insist_66
Associate II

BlueCoin入门套件使用波束形成算法时,采样率能达到多少啊

 

3 REPLIES 3
Federica Bossi
ST Employee

Hi @insist_66 ,

The BlueCoin can work at a maximum of 16kHz.

In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.

The audio signal is obtained from the digital MEMSM Kefeng as a 1-bit PDM signal, which is then converted into a 16 bit PCM sample by a PDM to PCM conversion filter at 16 kHz. Using the AcousticBF algorithm in FP-AUD-SMARTMIC1, can a sampling rate of 48KHZ be achieved

Federica Bossi
ST Employee

Hi @insist_66 ,

Unfortunately this is not possible: the library only works up to 16KHz, both input and output.
We don't have libraries or examples that from a 16KHz input signal would allow a 48KHz output signal.

In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.