maojianxin

@Jackyliszsh 先排除WIFI传输带来的影响，你把录音通过fatfs stream 写入到SDCARD，看看声音是否正常。另外，你试一下wav格式，是否有同样的问题。听你的文件感觉是采样率对应不上。

That's a good idea. I think we can provide an example like this.

@0x0fe I'm not repeating your problem. I think you can disable all the IRAM optimization option in sdkconfig, such as ESP32_WIFI_IRAM_OPT, ESP32_WIFI_RX_IRAM_OPT, etc.

Same issue as https://github.com/espressif/esp-adf/issues/917

@Nexet Which ADF and IDF versions are used? And did you select your board before building?

The error may is warning, is it working properly?

@stintel Thank you for your contributions. We separate the I2S by different IDF versions. And we are writing a new i2s_stream_v5.x file for IDF v5.x.

Please create a custom board for your project before proceeding. Please refer to https://github.com/espressif/esp-adf/tree/master/examples/get-started/play_mp3_control/components/my_board.

This topic has become inactive so I'm going to close the issue. Please reopen this if you have any questions or need any further assistance.

@crispmfc There is some errors, please enable the sdmmc debug log and check why mount sdcard failed. ```c I (1978) DOWNMIX_PIPELINE_EXAMPLE: [2.0] Start and wait for SDCARD to mount E...