关于ADF录音问题
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关于ADF录音问题
中午好,目前我用的开发板是lyrat v4.3 想实现通过两个mic录音,录制立体声,通过两个音轨录制,然后上传录音文件到指定服务器,目前通过例程将channel_format改成双路,录音文件很嘈杂,也不是立体声,请回复,谢谢
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- Posts: 184
- Joined: Fri Dec 15, 2017 2:45 am
Re: 关于ADF录音问题
bifenggang wrote: ↑Tue Jul 06, 2021 3:25 am中午好,目前我用的开发板是lyrat v4.3 想实现通过两个mic录音,录制立体声,通过两个音轨录制,然后上传录音文件到指定服务器,目前通过例程将channel_format改成双路,录音文件很嘈杂,也不是立体声,请回复,谢谢
你好, 你的 post 没看到你提及你是使用的哪个 adf 例程。
其实,这里有一个现成的例程, 请参考: https://github.com/espressif/esp-adf/tr ... e_raw_http
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- Posts: 28
- Joined: Tue Jul 06, 2021 3:19 am
Re: 关于ADF录音问题
你好,目前用的例程是pipeline_amr_sdcard,考虑amr压缩的比较小,我改了里面单声道到双声道,没有效果,谢谢
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Re: 关于ADF录音问题
bifenggang wrote: ↑Tue Jul 06, 2021 9:27 am你好,目前用的例程是pipeline_amr_sdcard,考虑amr压缩的比较小,我改了里面单声道到双声道,没有效果,谢谢
AMR 本来就是单声道的, WB 和 NB 分别为 16k 和 8k 采样率
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- Posts: 28
- Joined: Tue Jul 06, 2021 3:19 am
Re: 关于ADF录音问题
谢谢回复,如果我要用2个mic同时录音,然后把左右声道的分开两个文件编码amr,然后存到TF卡,能帮忙找下思路或者例程吗?谢谢
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- Posts: 28
- Joined: Tue Jul 06, 2021 3:19 am
Re: 关于ADF录音问题
还有一个问题麻烦解答下,我找到了如下代码,可以实现双路的录音然后双路播放,需要怎么编码amr格式并储存TF卡呢呢?我查了相关源码好像是库文件的不是源码,或者有类似例程也可以,谢谢
Code: Select all
#include <esp_log.h>
#include <driver/i2s.h>
#include <driver/i2c.h>
#include "es8388_registers.h"
/*
* Basic I2S and I2C Configuration
*/
#define I2S_NUM I2S_NUM_0
#define I2S_READLEN 50 * 4
#define I2C_NUM I2C_NUM_0
#define ES8388_ADDR 0x20
/*
* ES8388 Configuration Code
* Configure ES8388 audio codec over I2C for AUX IN input and headphone jack output
*/
static esp_err_t es_write_reg(uint8_t slave_add, uint8_t reg_add, uint8_t data)
{
esp_err_t res = ESP_OK;
i2c_cmd_handle_t cmd = i2c_cmd_link_create();
res |= i2c_master_start(cmd);
res |= i2c_master_write_byte(cmd, slave_add, 1 /*ACK_CHECK_EN*/);
res |= i2c_master_write_byte(cmd, reg_add, 1 /*ACK_CHECK_EN*/);
res |= i2c_master_write_byte(cmd, data, 1 /*ACK_CHECK_EN*/);
res |= i2c_master_stop(cmd);
res |= i2c_master_cmd_begin(0, cmd, 1000 / portTICK_RATE_MS);
i2c_cmd_link_delete(cmd);
return res;
}
static esp_err_t es8388_init()
{
esp_err_t res = ESP_OK;
i2c_config_t i2c_config = {
.mode = I2C_MODE_MASTER,
.sda_io_num = GPIO_NUM_18,
.sda_pullup_en = true,
.scl_io_num = GPIO_NUM_23,
.scl_pullup_en = true,
.master.clk_speed = 100000
};
res |= i2c_param_config(I2C_NUM, &i2c_config);
res |= i2c_driver_install(I2C_NUM, i2c_config.mode, 0, 0, 0);
/* mute DAC during setup, power up all systems, slave mode */
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL3, 0x04);
res |= es_write_reg(ES8388_ADDR, ES8388_CONTROL2, 0x50);
res |= es_write_reg(ES8388_ADDR, ES8388_CHIPPOWER, 0x00);
res |= es_write_reg(ES8388_ADDR, ES8388_MASTERMODE, 0x00);
/* power up DAC and enable only LOUT1 / ROUT1, ADC sample rate = DAC sample rate */
res |= es_write_reg(ES8388_ADDR, ES8388_DACPOWER, 0x30);
res |= es_write_reg(ES8388_ADDR, ES8388_CONTROL1, 0x12);
/* DAC I2S setup: 16 bit word length, I2S format; MCLK / Fs = 256*/
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL1, 0x18);
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL2, 0x02);
/* DAC to output route mixer configuration */
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL16, 0x00);
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL17, 0x90);
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL20, 0x90);
/* DAC and ADC use same LRCK, enable MCLK input; output resistance setup */
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL21, 0x80);
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL23, 0x00);
/* DAC volume control: 0dB (maximum, unattenuated) */
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL5, 0x00);
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL4, 0x00);
/* power down ADC while configuring; volume: +9dB for both channels */
res |= es_write_reg(ES8388_ADDR, ES8388_ADCPOWER, 0xff);
res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL1, 0x33);
/* select LINPUT2 / RINPUT2 as ADC input; stereo; 16 bit word length, format right-justified, MCLK / Fs = 256 */
res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL2, 0x50);
res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL3, 0x00);
res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL4, 0x0e);
res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL5, 0x02);
/* set ADC volume */
res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL8, 0x20);
res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL9, 0x20);
/* set LOUT1 / ROUT1 volume: 0dB (unattenuated) */
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL24, 0x1e);
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL25, 0x1e);
/* power up and enable DAC; power up ADC (no MIC bias) */
res |= es_write_reg(ES8388_ADDR, ES8388_DACPOWER, 0x3c);
res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL3, 0x00);
res |= es_write_reg(ES8388_ADDR, ES8388_ADCPOWER, 0x09);
return res;
}
/*
* Digital Filtering Code
* You can implement your own digital filters (e.g. FIR / IIR / biquad / ...) here.
* Please mind that you need to use seperate storage for left / right channels for stereo filtering.
*/
static inline int16_t dummyfilter(int16_t x)
{
return x;
}
/*
* Main
*/
void app_main(void)
{
printf("[filter-dsp] Initializing audio codec via I2C...\r\n");
if (es8388_init() != ESP_OK) {
printf("[filter-dsp] Audio codec initialization failed!\r\n");
} else {
printf("[filter-dsp] Audio codec initialization OK\r\n");
}
/*******************/
printf("[filter-dsp] Initializing input I2S...\r\n");
i2s_config_t i2s_read_config = {
.mode = I2S_MODE_MASTER | I2S_MODE_TX | I2S_MODE_RX,
.sample_rate = 44100,
.bits_per_sample = 16,
.communication_format = I2S_COMM_FORMAT_I2S,
.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT,
.intr_alloc_flags = ESP_INTR_FLAG_LEVEL2,
.dma_buf_count = 3,
.dma_buf_len = I2S_READLEN,
.use_apll = 1,
.tx_desc_auto_clear = 1,
.fixed_mclk = 0
};
i2s_pin_config_t i2s_read_pin_config = {
.bck_io_num = GPIO_NUM_5,
.ws_io_num = GPIO_NUM_25,
.data_out_num = GPIO_NUM_26,
.data_in_num = GPIO_NUM_35
};
i2s_driver_install(I2S_NUM, &i2s_read_config, 0, NULL);
i2s_set_pin(I2S_NUM, &i2s_read_pin_config);
/*******************/
printf("[filter-dsp] Initializing MCLK output...\r\n");
PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO0_U, FUNC_GPIO0_CLK_OUT1);
WRITE_PERI_REG(PIN_CTRL, 0xFFF0);
/*******************/
printf("[filter-dsp] Enabling Passthrough mode...\r\n");
size_t i2s_bytes_read = 0;
size_t i2s_bytes_written = 0;
int16_t i2s_buffer_read[I2S_READLEN / sizeof(int16_t)];
int16_t i2s_buffer_write[I2S_READLEN / sizeof(int16_t)];
/* continuously read data over I2S, pass it through the filtering function and write it back */
while (true) {
i2s_bytes_read = I2S_READLEN;
i2s_read(I2S_NUM, i2s_buffer_read, I2S_READLEN, &i2s_bytes_read, 100);
/* left channel filter */
for (uint32_t i = 0; i < i2s_bytes_read / 2; i += 2)
i2s_buffer_write[i] = dummyfilter(i2s_buffer_read[i]);
/* right channel filter */
for (uint32_t i = 1; i < i2s_bytes_read / 2; i += 2)
i2s_buffer_write[i] = dummyfilter(i2s_buffer_read[i]);
i2s_write(I2S_NUM, i2s_buffer_write, i2s_bytes_read, &i2s_bytes_written, 100);
}
}
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- Posts: 184
- Joined: Fri Dec 15, 2017 2:45 am
Re: 关于ADF录音问题
bifenggang wrote: ↑Thu Jul 08, 2021 3:00 pm还有一个问题麻烦解答下,我找到了如下代码,可以实现双路的录音然后双路播放,需要怎么编码amr格式并储存TF卡呢呢?我查了相关源码好像是库文件的不是源码,或者有类似例程也可以,谢谢Code: Select all
#include <esp_log.h> #include <driver/i2s.h> #include <driver/i2c.h> #include "es8388_registers.h" /* * Basic I2S and I2C Configuration */ #define I2S_NUM I2S_NUM_0 #define I2S_READLEN 50 * 4 #define I2C_NUM I2C_NUM_0 #define ES8388_ADDR 0x20 /* * ES8388 Configuration Code * Configure ES8388 audio codec over I2C for AUX IN input and headphone jack output */ static esp_err_t es_write_reg(uint8_t slave_add, uint8_t reg_add, uint8_t data) { esp_err_t res = ESP_OK; i2c_cmd_handle_t cmd = i2c_cmd_link_create(); res |= i2c_master_start(cmd); res |= i2c_master_write_byte(cmd, slave_add, 1 /*ACK_CHECK_EN*/); res |= i2c_master_write_byte(cmd, reg_add, 1 /*ACK_CHECK_EN*/); res |= i2c_master_write_byte(cmd, data, 1 /*ACK_CHECK_EN*/); res |= i2c_master_stop(cmd); res |= i2c_master_cmd_begin(0, cmd, 1000 / portTICK_RATE_MS); i2c_cmd_link_delete(cmd); return res; } static esp_err_t es8388_init() { esp_err_t res = ESP_OK; i2c_config_t i2c_config = { .mode = I2C_MODE_MASTER, .sda_io_num = GPIO_NUM_18, .sda_pullup_en = true, .scl_io_num = GPIO_NUM_23, .scl_pullup_en = true, .master.clk_speed = 100000 }; res |= i2c_param_config(I2C_NUM, &i2c_config); res |= i2c_driver_install(I2C_NUM, i2c_config.mode, 0, 0, 0); /* mute DAC during setup, power up all systems, slave mode */ res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL3, 0x04); res |= es_write_reg(ES8388_ADDR, ES8388_CONTROL2, 0x50); res |= es_write_reg(ES8388_ADDR, ES8388_CHIPPOWER, 0x00); res |= es_write_reg(ES8388_ADDR, ES8388_MASTERMODE, 0x00); /* power up DAC and enable only LOUT1 / ROUT1, ADC sample rate = DAC sample rate */ res |= es_write_reg(ES8388_ADDR, ES8388_DACPOWER, 0x30); res |= es_write_reg(ES8388_ADDR, ES8388_CONTROL1, 0x12); /* DAC I2S setup: 16 bit word length, I2S format; MCLK / Fs = 256*/ res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL1, 0x18); res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL2, 0x02); /* DAC to output route mixer configuration */ res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL16, 0x00); res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL17, 0x90); res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL20, 0x90); /* DAC and ADC use same LRCK, enable MCLK input; output resistance setup */ res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL21, 0x80); res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL23, 0x00); /* DAC volume control: 0dB (maximum, unattenuated) */ res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL5, 0x00); res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL4, 0x00); /* power down ADC while configuring; volume: +9dB for both channels */ res |= es_write_reg(ES8388_ADDR, ES8388_ADCPOWER, 0xff); res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL1, 0x33); /* select LINPUT2 / RINPUT2 as ADC input; stereo; 16 bit word length, format right-justified, MCLK / Fs = 256 */ res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL2, 0x50); res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL3, 0x00); res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL4, 0x0e); res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL5, 0x02); /* set ADC volume */ res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL8, 0x20); res |= es_write_reg(ES8388_ADDR, ES8388_ADCCONTROL9, 0x20); /* set LOUT1 / ROUT1 volume: 0dB (unattenuated) */ res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL24, 0x1e); res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL25, 0x1e); /* power up and enable DAC; power up ADC (no MIC bias) */ res |= es_write_reg(ES8388_ADDR, ES8388_DACPOWER, 0x3c); res |= es_write_reg(ES8388_ADDR, ES8388_DACCONTROL3, 0x00); res |= es_write_reg(ES8388_ADDR, ES8388_ADCPOWER, 0x09); return res; } /* * Digital Filtering Code * You can implement your own digital filters (e.g. FIR / IIR / biquad / ...) here. * Please mind that you need to use seperate storage for left / right channels for stereo filtering. */ static inline int16_t dummyfilter(int16_t x) { return x; } /* * Main */ void app_main(void) { printf("[filter-dsp] Initializing audio codec via I2C...\r\n"); if (es8388_init() != ESP_OK) { printf("[filter-dsp] Audio codec initialization failed!\r\n"); } else { printf("[filter-dsp] Audio codec initialization OK\r\n"); } /*******************/ printf("[filter-dsp] Initializing input I2S...\r\n"); i2s_config_t i2s_read_config = { .mode = I2S_MODE_MASTER | I2S_MODE_TX | I2S_MODE_RX, .sample_rate = 44100, .bits_per_sample = 16, .communication_format = I2S_COMM_FORMAT_I2S, .channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, .intr_alloc_flags = ESP_INTR_FLAG_LEVEL2, .dma_buf_count = 3, .dma_buf_len = I2S_READLEN, .use_apll = 1, .tx_desc_auto_clear = 1, .fixed_mclk = 0 }; i2s_pin_config_t i2s_read_pin_config = { .bck_io_num = GPIO_NUM_5, .ws_io_num = GPIO_NUM_25, .data_out_num = GPIO_NUM_26, .data_in_num = GPIO_NUM_35 }; i2s_driver_install(I2S_NUM, &i2s_read_config, 0, NULL); i2s_set_pin(I2S_NUM, &i2s_read_pin_config); /*******************/ printf("[filter-dsp] Initializing MCLK output...\r\n"); PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO0_U, FUNC_GPIO0_CLK_OUT1); WRITE_PERI_REG(PIN_CTRL, 0xFFF0); /*******************/ printf("[filter-dsp] Enabling Passthrough mode...\r\n"); size_t i2s_bytes_read = 0; size_t i2s_bytes_written = 0; int16_t i2s_buffer_read[I2S_READLEN / sizeof(int16_t)]; int16_t i2s_buffer_write[I2S_READLEN / sizeof(int16_t)]; /* continuously read data over I2S, pass it through the filtering function and write it back */ while (true) { i2s_bytes_read = I2S_READLEN; i2s_read(I2S_NUM, i2s_buffer_read, I2S_READLEN, &i2s_bytes_read, 100); /* left channel filter */ for (uint32_t i = 0; i < i2s_bytes_read / 2; i += 2) i2s_buffer_write[i] = dummyfilter(i2s_buffer_read[i]); /* right channel filter */ for (uint32_t i = 1; i < i2s_bytes_read / 2; i += 2) i2s_buffer_write[i] = dummyfilter(i2s_buffer_read[i]); i2s_write(I2S_NUM, i2s_buffer_write, i2s_bytes_read, &i2s_bytes_written, 100); } }
你是要双路录音,然后分别编码吧? 我看了你的新的帖子, 我在新的帖子里回复你了。
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