BlueCoin入门套件

[insist_66]

BlueCoin入门套件使用波束形成算法时，采样率能达到多少啊

 

[Federica Bossi]

Hi @insist_66 ,

The BlueCoin can work at a maximum of 16kHz.

[insist_66]

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]

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.