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feat(i2s): extend the mic recorder example to support both DMIC and AMIC

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morris
2026-07-31 22:14:16 +08:00
parent c6e80a336a
commit 66c2ce88b3
24 changed files with 630 additions and 404 deletions
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docs/en/api-reference/peripherals/i2s.rst
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@@ -445,6 +445,7 @@ Standard TX/RX Usage
- :example:`peripherals/i2s/i2s_codec/i2s_es8311` demonstrates how to use the I2S ES8311 audio codec with {IDF_TARGET_NAME} to play music or echo sounds, featuring high performance and low power multi-bit delta-sigma audio ADC and DAC, with options to customize music and adjust mic gain and volume.
- :example:`peripherals/i2s/i2s_basic/i2s_std` demonstrates how to use the I2S standard mode in either simplex or full-duplex mode on {IDF_TARGET_NAME}.
- :example:`peripherals/i2s/mic_recorder` demonstrates how to record audio from an analog microphone connected to an ES8389 codec through the I2S STD interface.
Different slot communication formats can be generated by the following helper macros for standard mode. As described above, there are three formats in standard mode, and their helper macros are:
@@ -804,7 +805,7 @@ Here is the table of the data received in the buffer with different :cpp:member:
PDM RX Usage
^^^^^^^^^^^^
- :example:`peripherals/i2s/i2s_recorder` demonstrates how to record audio from a digital MEMS microphone using the I2S peripheral in PDM data format and save it to an SD card in ``.wav`` file format on {IDF_TARGET_NAME} development boards.
- :example:`peripherals/i2s/mic_recorder` demonstrates how to record audio from either PDM digital MEMS microphones (using the I2S PDM RX mode) or an analog microphone through an ES8389 codec, and streams the recorded PCM data over the console so that the ``.wav`` file can be reconstructed on the host PC.
- :example:`peripherals/i2s/i2s_basic/i2s_pdm` demonstrates how to use the PDM RX mode on {IDF_TARGET_NAME}, including the necessary hardware setup and configuration.
For PDM mode in RX channel, the slot configuration helper macro are: