读取文件头：WAV文件包含文件头和音频数据部分。首先读取文件头，提取音频格式信息，如采样率、量化位宽、通道数等。提取音频数据：根据文件头中的信息，定位并提取音频数据部分。更新I2S配置：根据提取的音频格式信息，更新I2S的配置，确保与WAV文件的音频数据相匹配。播放音频：将提取的音频数据通过I2S发送给...
一. 简介本篇文章将介绍如何使用ESP32S3通过I2S发送WAV音频数据,驱动MAX98375A进行音频的播放。是EVE_V2项目开发的一部分工作。 二. MAX98375A介绍芯片特性如下,可以在芯片手册上找到。 单电源工作(2.5V至5.5V)3…
* 麦克风初始化 */voidinit_microphone(void){i2s_chan_config_t chan_cfg=I2S_CHANNEL_DEFAULT_CONFIG(I2S_NUM_1,I2S_ROLE_MASTER);ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg,NULL,&rx_handle));i2s_std_config_t std_cfg={.clk_cfg=I2S_STD_CLK_DEFAULT_CONFIG(CONFIG_MIC_SAMPLE_RATE),.slot_cfg...
WAV文件解析是本方案的关键步骤。WAV文件格式类似于bmp文件，由文件头和音频数据两部分组成。解析文件头可获取到I2S所需的参数，如采样率、量化位宽和通道数。文件头共有44个字节，包含文件大小、格式类型、通道数等信息。解析文件时，需根据提取信息更新I2S配置，以实现音频播放。在ESP32_IDF的例程中，提...
driver. The rest of the application code has not changed. Hardware has not changed-- audio is played through a MAX98357A. The only thing that has changed in code is the function that configures the i2s driver and the function that uses i2s_channel_write() instead of i2s_write(). Any ...
编辑于 2024年02月22日 06:45 初始化代码: voidrev_mic_task(void*pvParameters){init_microphone();uint8_t onBufferType_bak=send_data_transfer.onBufferType;while(1){i2s_channel_read(rx_handle,send_data_transfer.w_buf[0],CACHE_WAV*sizeof(uint8_t),&send_data_transfer.transfer_bytes,50);}...
ESP-IDF 5.1.2, i2s_std.h, unable to control I2S data transmission end 1 post • Page1of1 wangnick Posts:5 Joined:Tue Dec 12, 2023 6:27 pm Postbywangnick»Sat Dec 16, 2023 10:47 pm Dear all, whether sending I2S data synchronously (using i2s_channel_enable, i2s_channel_write, ...
i2s_write应该用来代替i2s_write_bytes和i2s_push_sample,这是不赞同的。 i2s_read应该用来代替i2s_read_bytes和i2s_pop_sample,这是不赞同的 (esp_ble_gattc_open())remote_addr_type添加了一个新参数esp_ble_gattc_open() 修改ESP_GATTS_ADD_CHAR_DESCR_EVTBLE GATTS事件的char_uuid参数,将此事件的参数重...
i2s_write应该用来代替i2s_write_bytes和i2s_push_sample,这是不赞同的。 i2s_read应该用来代替i2s_read_bytes和i2s_pop_sample,这是不赞同的 (esp_ble_gattc_open())remote_addr_type添加了一个新参数esp_ble_gattc_open() 修改ESP_GATTS_ADD_CHAR_DESCR_EVTBLE GATTS事件的char_uuid参数,将此事件的参数重...
Hmm, I would say this has reached the point of being rather bizarre. I found the examples from the wiki with this board that has a revised audio example based on the i2s_es8311 example code that supposedly has the correct setup. Even when using this code I am still unable to get any...