------Question for IDC777-1 Please Put your question below------
Hi everyone,
I’m evaluating the IDC777 Bluetooth audio module, or a similar DigiKey-available module, for an embedded hands-free voice project.
The datasheet lists HFP/HSP, Wide Band Speech, UART control, and digital audio interfaces such as PCM/I2S/SPDIF.
My key requirement is specific:
Can externally supplied digital audio on PCM or I2S be used as the microphone source for HFP Hands-Free uplink to a phone?
I am not looking for A2DP input, analog microphone input, or a general “I2S supported” answer. I need the digital input to feed the HFP/SCO/eSCO voice uplink.
Questions:
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Does the standard IDC777 AudioAgent firmware support HFP Hands-Free role with mSBC/Wide Band Speech?
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Can external PCM or I2S input be selected as the HFP microphone/uplink source?
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Can it accept already-processed 16 kHz mono PCM from an external DSP and transmit it over HFP mSBC?
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Can far-end call audio be output over PCM/I2S, or only analog?
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What UART command or configuration selects the HFP microphone source and audio routing?
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Can onboard DSP, noise reduction, AGC, or echo processing be bypassed/minimized?
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Is this supported by the standard shipped firmware, or would custom firmware be required?
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Is there a command manual or application note that explicitly documents HFP audio routing over PCM/I2S?
Any confirmation, app notes, command references, or alternative module suggestions would be appreciated.
Thanks.