I tried to make sense of the HFP Client code on Github but I couldn't figure out how to hook up a microphone and speaker to the PCM data stream.
I'm planning to use PCM, and the HFP client directly sends that data to GPIO pins. I see the sample code that muxes the GPIO pins accordingly.
What I can't quite figure out how / what to connect to those GPIO pins so that I can get full duplex audio: I want to connect an audio source as well as a speaker.
Any help would be appreciated !
HFP Client: How to use speaker and microphone with PCM?
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- Joined: Sun Jan 01, 2023 3:31 pm
Re: HFP Client: How to use speaker and microphone with PCM?
I also have this question as well as others.
What do the Acoustic Echo Cancellation signals attach to?
Is there a way to route the audio data to the built-in DAC and a ADC input on the ESP32? Could this be done with the HCI interface and the I2S driver configured for ADC/DAC? Is the sample rate 8 kHz in that case?
What do the Acoustic Echo Cancellation signals attach to?
Is there a way to route the audio data to the built-in DAC and a ADC input on the ESP32? Could this be done with the HCI interface and the I2S driver configured for ADC/DAC? Is the sample rate 8 kHz in that case?
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