How to set Hardware Gain for ES8311 IC for Speaker

[deepakkumarbinwal]

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Issue or Suggestion Description

Want to Know how to set hardware gain for ES8311 for speaker to increase speaker output value

[TempoTian]

esp_codec_dev_set_out_vol(get_playback_handle(), vol) directly sets the codec DAC gain.

You can dump the PCM data written to the codec device (see
https://github.com/espressif/esp-webrtc-solution/blob/main/components/av_render/render_impl/i2s_render.c#L126
) to verify whether the input PCM level is low.

If the PCM level is not low, the output volume issue is likely caused by insufficient speaker power, and a higher-power speaker should be used.

If the PCM level is low, you can adjust the software volume mapping by configuring a custom volume curve via esp_codec_dev_set_vol_curve().

static esp_codec_dev_vol_map_t volume_maps[] = {
    {.vol = 1, .db_value = -49.5},
    {.vol = 100, .db_value = 32}, 
esp_codec_dev_vol_curve_t vol_curve = {
    .count = 2
    .vol_map = volume_maps,
};
esp_codec_dev_set_vol_curve(dev, &vol_curve);

[deepakkumarbinwal]

this was log -
I (18776) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (18797) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (18825) I2S_RENDER: PCM peak level: 3 / 32767 (0.0%)
I (18841) ESP_GMF_TASK: One times job is complete, del[wk:0x480b83c4, ctx:0x480b2484, label:vid_enc_open]
I (18847) I2S_RENDER: PCM peak level: 3 / 32767 (0.0%)
I (18867) I2S_RENDER: PCM peak level: 4 / 32767 (0.0%)
I (18890) I2S_RENDER: PCM peak level: 6 / 32767 (0.0%)
W (18915) dl::Model: Minimize() will delete variables not used in model inference, which will make it impossible to test or debug the model.
I (18917) I2S_RENDER: PCM peak level: 305 / 32767 (0.9%)
I (18939) I2S_RENDER: PCM peak level: 1688 / 32767 (5.2%)
I (18960) I2S_RENDER: PCM peak level: 2150 / 32767 (6.6%)
I (18982) I2S_RENDER: PCM peak level: 6807 / 32767 (20.8%)
I (19010) I2S_RENDER: PCM peak level: 7339 / 32767 (22.4%)
I (19032) I2S_RENDER: PCM peak level: 15275 / 32767 (46.6%)
I (19053) I2S_RENDER: PCM peak level: 14667 / 32767 (44.8%)
I (19063) Signal: WEBSOCKET_EVENT_CONNECTED
I (19064) webrtc: PeerConnectionState: 2
I (19081) I2S_RENDER: PCM peak level: 14941 / 32767 (45.6%)
I (19102) I2S_RENDER: PCM peak level: 14907 / 32767 (45.5%)
I (19124) I2S_RENDER: PCM peak level: 15615 / 32767 (47.7%)
I (19145) I2S_RENDER: PCM peak level: 11557 / 32767 (35.3%)
I (19172) I2S_RENDER: PCM peak level: 10668 / 32767 (32.6%)
I (19194) I2S_RENDER: PCM peak level: 10762 / 32767 (32.8%)
I (19216) I2S_RENDER: PCM peak level: 9991 / 32767 (30.5%)
I (19238) I2S_RENDER: PCM peak level: 8779 / 32767 (26.8%)
I (19265) I2S_RENDER: PCM peak level: 11249 / 32767 (34.3%)
I (19287) I2S_RENDER: PCM peak level: 11440 / 32767 (34.9%)
I (19309) I2S_RENDER: PCM peak level: 13249 / 32767 (40.4%)
I (19331) I2S_RENDER: PCM peak level: 15195 / 32767 (46.4%)
I (19357) I2S_RENDER: PCM peak level: 13368 / 32767 (40.8%)
I (19379) I2S_RENDER: PCM peak level: 12332 / 32767 (37.6%)
I (19401) I2S_RENDER: PCM peak level: 11636 / 32767 (35.5%)
I (19428) I2S_RENDER: PCM peak level: 11119 / 32767 (33.9%)
I (19449) I2S_RENDER: PCM peak level: 12513 / 32767 (38.2%)
I (19471) I2S_RENDER: PCM peak level: 12345 / 32767 (37.7%)
I (19493) I2S_RENDER: PCM peak level: 8891 / 32767 (27.1%)
I (19520) I2S_RENDER: PCM peak level: 3769 / 32767 (11.5%)
I (19542) I2S_RENDER: PCM peak level: 7279 / 32767 (22.2%)
I (19564) I2S_RENDER: PCM peak level: 5991 / 32767 (18.3%)
I (19585) I2S_RENDER: PCM peak level: 5870 / 32767 (17.9%)
I (19613) I2S_RENDER: PCM peak level: 10182 / 32767 (31.1%)
I (19634) I2S_RENDER: PCM peak level: 10541 / 32767 (32.2%)
I (19657) I2S_RENDER: PCM peak level: 8114 / 32767 (24.8%)
I (19678) I2S_RENDER: PCM peak level: 1795 / 32767 (5.5%)
I (19705) I2S_RENDER: PCM peak level: 3595 / 32767 (11.0%)
I (19726) I2S_RENDER: PCM peak level: 7073 / 32767 (21.6%)
I (19749) I2S_RENDER: PCM peak level: 5014 / 32767 (15.3%)
I (19776) I2S_RENDER: PCM peak level: 5871 / 32767 (17.9%)
I (19798) I2S_RENDER: PCM peak level: 5129 / 32767 (15.7%)
I (19819) I2S_RENDER: PCM peak level: 12906 / 32767 (39.4%)
I (19841) I2S_RENDER: PCM peak level: 16793 / 32767 (51.2%)
I (19869) I2S_RENDER: PCM peak level: 19486 / 32767 (59.5%)
I (19890) I2S_RENDER: PCM peak level: 22349 / 32767 (68.2%)
I (19912) I2S_RENDER: PCM peak level: 20914 / 32767 (63.8%)
I (19934) I2S_RENDER: PCM peak level: 14443 / 32767 (44.1%)
I (19961) I2S_RENDER: PCM peak level: 10189 / 32767 (31.1%)
I (19983) I2S_RENDER: PCM peak level: 5287 / 32767 (16.1%)
I (20005) I2S_RENDER: PCM peak level: 1599 / 32767 (4.9%)
I (20027) I2S_RENDER: PCM peak level: 4842 / 32767 (14.8%)
I (20053) I2S_RENDER: PCM peak level: 5397 / 32767 (16.5%)
I (20075) I2S_RENDER: PCM peak level: 5376 / 32767 (16.4%)
I (20097) I2S_RENDER: PCM peak level: 5131 / 32767 (15.7%)
I (20124) I2S_RENDER: PCM peak level: 3385 / 32767 (10.3%)
I (20146) I2S_RENDER: PCM peak level: 1205 / 32767 (3.7%)
I (20168) I2S_RENDER: PCM peak level: 256 / 32767 (0.8%)
I (20189) I2S_RENDER: PCM peak level: 46 / 32767 (0.1%)
I (20217) I2S_RENDER: PCM peak level: 8 / 32767 (0.0%)
I (20238) I2S_RENDER: PCM peak level: 4 / 32767 (0.0%)
I (20260) I2S_RENDER: PCM peak level: 3 / 32767 (0.0%)
I (20282) I2S_RENDER: PCM peak level: 3 / 32767 (0.0%)
I (20309) I2S_RENDER: PCM peak level: 2 / 32767 (0.0%)
I (20331) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20352) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20374) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20401) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20423) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20444) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20472) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20493) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20515) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20537) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20564) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20586) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20608) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20630) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20657) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20678) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20700) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20722) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20749) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20771) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20793) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20820) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20842) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20864) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20885) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20913) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20934) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20956) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (20978) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (21005) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (21027) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (21049) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (21070) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (21097) I2S_RENDER: PCM peak level: 0 / 32767 (0.0%)
I (21146) AV_RENDER: Adec got msg:Close
I (21146) AV_RENDER: Thread Adec exited
I (21146) AV_RENDER: ARender got msg:Close
I (21146) AV_RENDER: Thread ARender exited
I (21149) AV_RENDER: Close done

for this code in i2s_render.c
void dump_pcm_level(const uint8_t *data, size_t size)
{
int16_t *samples = (int16_t *)data;
size_t sample_count = size / sizeof(int16_t);

int16_t peak = 0;

for (size_t i = 0; i < sample_count; i++) {
    int16_t s = samples[i];
    if (abs(s) > peak) {
        peak = abs(s);
    }
}

ESP_LOGI(TAG, "PCM peak level: %d / 32767 (%.1f%%)",
         peak, (peak * 100.0f) / 32767.0f);

}

static int i2s_render_write(audio_render_handle_t render, av_render_audio_frame_t *audio_data)
{
if (render == NULL || audio_data == NULL) {
return -1;
}
int ret = ESP_OK;
i2s_render_t *i2s = (i2s_render_t *)render;
if (i2s->sonic_enable) {
int sample_num = audio_data->size / SAMPLE_SIZE(i2s->info);
esp_ae_sonic_in_data_t in_samples = {
.num = sample_num,
.samples = audio_data->data,
};
esp_ae_sonic_out_data_t out_samples = {
.samples = i2s->sonic_out,
.needed_num = DEFALUT_SONIC_OUT_SAMPLES,
};
while (sample_num > 0) {
ret = esp_ae_sonic_process(i2s->sonic_handle, &in_samples, &out_samples);
if (ret != ESP_AE_ERR_OK) {
printf("sonic process error\n");
return -1;
}
if (out_samples.out_num == 0) {
break;
}
ret = esp_codec_dev_write(i2s->play_handle, out_samples.samples, out_samples.out_num * SAMPLE_SIZE(i2s->info));
if (ret == 0 && i2s->ref_cb) {
i2s->ref_cb(audio_data->data, audio_data->size, i2s->ref_ctx);
}
sample_num -= in_samples.consume_num;
in_samples.num = sample_num;
in_samples.samples = audio_data->data + in_samples.consume_num * SAMPLE_SIZE(i2s->info);
}
} else {
dump_pcm_level(audio_data->data, audio_data->size);
int ret = esp_codec_dev_write(i2s->play_handle, audio_data->data, audio_data->size);
if (ret == 0 && i2s->ref_cb) {
i2s->ref_cb(audio_data->data, audio_data->size, i2s->ref_ctx);
}
}
return ret;
}

log after running webrtc
I (211602) I2S_RENDER: PCM peak level: 755 / 32767 (2.3%)
I (211631) I2S_RENDER: PCM peak level: 1032 / 32767 (3.1%)
I (211647) I2S_RENDER: PCM peak level: 1037 / 32767 (3.2%)
I (211662) I2S_RENDER: PCM peak level: 844 / 32767 (2.6%)
I (211691) I2S_RENDER: PCM peak level: 382 / 32767 (1.2%)
I (211706) I2S_RENDER: PCM peak level: 166 / 32767 (0.5%)
I (211722) I2S_RENDER: PCM peak level: 219 / 32767 (0.7%)
I (211751) I2S_RENDER: PCM peak level: 178 / 32767 (0.5%)
I (211767) I2S_RENDER: PCM peak level: 155 / 32767 (0.5%)
I (211782) I2S_RENDER: PCM peak level: 160 / 32767 (0.5%)
I (211811) I2S_RENDER: PCM peak level: 144 / 32767 (0.4%)
I (211826) I2S_RENDER: PCM peak level: 147 / 32767 (0.4%)
I (211842) I2S_RENDER: PCM peak level: 179 / 32767 (0.5%)
I (211871) I2S_RENDER: PCM peak level: 185 / 32767 (0.6%)
I (211886) I2S_RENDER: PCM peak level: 259 / 32767 (0.8%)
I (211902) I2S_RENDER: PCM peak level: 500 / 32767 (1.5%)
I (211931) I2S_RENDER: PCM peak level: 734 / 32767 (2.2%)
I (211947) I2S_RENDER: PCM peak level: 1046 / 32767 (3.2%)
I (211962) I2S_RENDER: PCM peak level: 1125 / 32767 (3.4%)
I (211991) I2S_RENDER: PCM peak level: 485 / 32767 (1.5%)
I (212006) I2S_RENDER: PCM peak level: 411 / 32767 (1.3%)
I (212021) I2S_RENDER: PCM peak level: 335 / 32767 (1.0%)
I (212052) I2S_RENDER: PCM peak level: 126 / 32767 (0.4%)
I (212067) I2S_RENDER: PCM peak level: 209 / 32767 (0.6%)
I (212082) I2S_RENDER: PCM peak level: 226 / 32767 (0.7%)
I (212111) I2S_RENDER: PCM peak level: 275 / 32767 (0.8%)
I (212126) I2S_RENDER: PCM peak level: 568 / 32767 (1.7%)
I (212143) I2S_RENDER: PCM peak level: 517 / 32767 (1.6%)
I (212171) I2S_RENDER: PCM peak level: 516 / 32767 (1.6%)
I (212187) I2S_RENDER: PCM peak level: 340 / 32767 (1.0%)
I (212206) I2S_RENDER: PCM peak level: 200 / 32767 (0.6%)
I (212231) I2S_RENDER: PCM peak level: 300 / 32767 (0.9%)
I (212246) I2S_RENDER: PCM peak level: 316 / 32767 (1.0%)
I (212264) I2S_RENDER: PCM peak level: 402 / 32767 (1.2%)
I (212291) I2S_RENDER: PCM peak level: 322 / 32767 (1.0%)
I (212306) I2S_RENDER: PCM peak level: 166 / 32767 (0.5%)
I (212322) I2S_RENDER: PCM peak level: 181 / 32767 (0.6%)
I (212351) I2S_RENDER: PCM peak level: 391 / 32767 (1.2%)
I (212366) I2S_RENDER: PCM peak level: 433 / 32767 (1.3%)
I (212383) I2S_RENDER: PCM peak level: 393 / 32767 (1.2%)
I (212413) I2S_RENDER: PCM peak level: 531 / 32767 (1.6%)
I (212427) I2S_RENDER: PCM peak level: 211 / 32767 (0.6%)
I (212442) I2S_RENDER: PCM peak level: 280 / 32767 (0.9%)
I (212471) I2S_RENDER: PCM peak level: 436 / 32767 (1.3%)
I (212487) I2S_RENDER: PCM peak level: 335 / 32767 (1.0%)
I (212502) I2S_RENDER: PCM peak level: 438 / 32767 (1.3%)
I (212531) I2S_RENDER: PCM peak level: 246 / 32767 (0.8%)
I (212546) I2S_RENDER: PCM peak level: 214 / 32767 (0.7%)
I (212563) I2S_RENDER: PCM peak level: 264 / 32767 (0.8%)
I (212591) I2S_RENDER: PCM peak level: 262 / 32767 (0.8%)
I (212606) I2S_RENDER: PCM peak level: 308 / 32767 (0.9%)
I (212622) I2S_RENDER: PCM peak level: 325 / 32767 (1.0%)
I (212651) I2S_RENDER: PCM peak level: 398 / 32767 (1.2%)
I (212666) I2S_RENDER: PCM peak level: 605 / 32767 (1.8%)
I (212682) I2S_RENDER: PCM peak level: 3999 / 32767 (12.2%)
I (212711) I2S_RENDER: PCM peak level: 30192 / 32767 (92.1%)
I (212726) I2S_RENDER: PCM peak level: 31218 / 32767 (95.3%)
I (212743) I2S_RENDER: PCM peak level: 27445 / 32767 (83.8%)
I (212771) I2S_RENDER: PCM peak level: 15061 / 32767 (46.0%)
I (212786) I2S_RENDER: PCM peak level: 8919 / 32767 (27.2%)
I (212802) I2S_RENDER: PCM peak level: 11992 / 32767 (36.6%)
I (212832) I2S_RENDER: PCM peak level: 9563 / 32767 (29.2%)
I (212847) I2S_RENDER: PCM peak level: 5931 / 32767 (18.1%)
I (212862) I2S_RENDER: PCM peak level: 2616 / 32767 (8.0%)
I (212892) I2S_RENDER: PCM peak level: 2676 / 32767 (8.2%)
I (212906) I2S_RENDER: PCM peak level: 1887 / 32767 (5.8%)
I (212922) I2S_RENDER: PCM peak level: 1306 / 32767 (4.0%)
I (212951) I2S_RENDER: PCM peak level: 1072 / 32767 (3.3%)
I (212966) I2S_RENDER: PCM peak level: 945 / 32767 (2.9%)
I (212981) I2S_RENDER: PCM peak level: 1109 / 32767 (3.4%)
I (213011) I2S_RENDER: PCM peak level: 437 / 32767 (1.3%)
I (213026) I2S_RENDER: PCM peak level: 450 / 32767 (1.4%)
I (213042) I2S_RENDER: PCM peak level: 375 / 32767 (1.1%)
I (213071) I2S_RENDER: PCM peak level: 255 / 32767 (0.8%)
I (213086) I2S_RENDER: PCM peak level: 247 / 32767 (0.8%)
I (213103) I2S_RENDER: PCM peak level: 394 / 32767 (1.2%)
I (213131) I2S_RENDER: PCM peak level: 504 / 32767 (1.5%)
I (213146) I2S_RENDER: PCM peak level: 500 / 32767 (1.5%)
I (213162) I2S_RENDER: PCM peak level: 423 / 32767 (1.3%)
I (213188) PEDESTRIAN_DETECT: [score: 0.734209, x1: 0, y1: 0, x2: 319, y2: 179]
I (213189) DETECT: Pedestrian Detected!
I (213191) I2S_RENDER: PCM peak level: 410 / 32767 (1.3%)
I (213206) I2S_RENDER: PCM peak level: 168 / 32767 (0.5%)
I (213221) I2S_RENDER: PCM peak level: 118 / 32767 (0.4%)
I (213251) I2S_RENDER: PCM peak level: 136 / 32767 (0.4%)
I (213266) I2S_RENDER: PCM peak level: 160 / 32767 (0.5%)
I (213287) I2S_RENDER: PCM peak level: 92 / 32767 (0.3%)
I (213292) DETECT: Saved JPEG: /sdcard/pedestrian_211044004.jpg
I (213311) I2S_RENDER: PCM peak level: 133 / 32767 (0.4%)
I (213326) I2S_RENDER: PCM peak level: 139 / 32767 (0.4%)
I (213342) I2S_RENDER: PCM peak level: 230 / 32767 (0.7%)
I (213371) I2S_RENDER: PCM peak level: 265 / 32767 (0.8%)
I (213386) I2S_RENDER: PCM peak level: 198 / 32767 (0.6%)
I (213402) I2S_RENDER: PCM peak level: 165 / 32767 (0.5%)
I (213431) I2S_RENDER: PCM peak level: 220 / 32767 (0.7%)
I (213446) I2S_RENDER: PCM peak level: 214 / 32767 (0.7%)
I (213462) I2S_RENDER: PCM peak level: 149 / 32767 (0.5%)
I (213493) I2S_RENDER: PCM peak level: 110 / 32767 (0.3%)
I (213507) I2S_RENDER: PCM peak level: 126 / 32767 (0.4%)
I (213523) I2S_RENDER: PCM peak level: 136 / 32767 (0.4%)
I (213551) I2S_RENDER: PCM peak level: 130 / 32767 (0.4%)
I (213566) I2S_RENDER: PCM peak level: 148 / 32767 (0.5%)
I (213582) I2S_RENDER: PCM peak level: 189 / 32767 (0.6%)
I (213611) I2S_RENDER: PCM peak level: 154 / 32767 (0.5%)
I (213626) I2S_RENDER: PCM peak level: 134 / 32767 (0.4%)
I (213642) I2S_RENDER: PCM peak level: 163 / 32767 (0.5%)
I (213671) I2S_RENDER: PCM peak level: 128 / 32767 (0.4%)
I (213686) I2S_RENDER: PCM peak level: 141 / 32767 (0.4%)
I (213701) I2S_RENDER: PCM peak level: 168 / 32767 (0.5%)
I (213731) I2S_RENDER: PCM peak level: 1415 / 32767 (4.3%)
I (213746) I2S_RENDER: PCM peak level: 1703 / 32767 (5.2%)
I (213762) I2S_RENDER: PCM peak level: 1096 / 32767 (3.3%)
I (213791) I2S_RENDER: PCM peak level: 677 / 32767 (2.1%)
I (213806) I2S_RENDER: PCM peak level: 392 / 32767 (1.2%)
I (213822) I2S_RENDER: PCM peak level: 285 / 32767 (0.9%)
I (213851) I2S_RENDER: PCM peak level: 156 / 32767 (0.5%)
I (213866) I2S_RENDER: PCM peak level: 185 / 32767 (0.6%)
I (213882) I2S_RENDER: PCM peak level: 178 / 32767 (0.5%)
I (213911) I2S_RENDER: PCM peak level: 212 / 32767 (0.6%)
I (213926) I2S_RENDER: PCM peak level: 153 / 32767 (0.5%)
I (213942) I2S_RENDER: PCM peak level: 142 / 32767 (0.4%)
I (213971) I2S_RENDER: PCM peak level: 134 / 32767 (0.4%)
I (213986) I2S_RENDER: PCM peak level: 115 / 32767 (0.4%)
I (214002) I2S_RENDER: PCM peak level: 124 / 32767 (0.4%)
I (214031) I2S_RENDER: PCM peak level: 135 / 32767 (0.4%)
I (214046) I2S_RENDER: PCM peak level: 188 / 32767 (0.6%)
I (214062) I2S_RENDER: PCM peak level: 115 / 32767 (0.4%)
I (214091) I2S_RENDER: PCM peak level: 132 / 32767 (0.4%)
I (214106) I2S_RENDER: PCM peak level: 112 / 32767 (0.3%)
I (214126) I2S_RENDER: PCM peak level: 105 / 32767 (0.3%)
I (214151) I2S_RENDER: PCM peak level: 145 / 32767 (0.4%)
I (214167) I2S_RENDER: PCM peak level: 200 / 32767 (0.6%)
I (214181) I2S_RENDER: PCM peak level: 221 / 32767 (0.7%)
I (214211) I2S_RENDER: PCM peak level: 166 / 32767 (0.5%)
I (214226) I2S_RENDER: PCM peak level: 126 / 32767 (0.4%)
I (214242) I2S_RENDER: PCM peak level: 84 / 32767 (0.3%)
I (214271) I2S_RENDER: PCM peak level: 93 / 32767 (0.3%)
I (214286) I2S_RENDER: PCM peak level: 119 / 32767 (0.4%)
I (214302) I2S_RENDER: PCM peak level: 214 / 32767 (0.7%)
I (214332) I2S_RENDER: PCM peak level: 117 / 32767 (0.4%)
I (214346) I2S_RENDER: PCM peak level: 105 / 32767 (0.3%)
I (214362) I2S_RENDER: PCM peak level: 89 / 32767 (0.3%)
I (214391) I2S_RENDER: PCM peak level: 119 / 32767 (0.4%)
I (214406) I2S_RENDER: PCM peak level: 114 / 32767 (0.3%)
I (214422) I2S_RENDER: PCM peak level: 114 / 32767 (0.3%)
I (214451) I2S_RENDER: PCM peak level: 99 / 32767 (0.3%)
I (214466) I2S_RENDER: PCM peak level: 78 / 32767 (0.2%)
I (214482) I2S_RENDER: PCM peak level: 106 / 32767 (0.3%)
I (214511) I2S_RENDER: PCM peak level: 112 / 32767 (0.3%)
I (214528) I2S_RENDER: PCM peak level: 116 / 32767 (0.4%)
I (214542) I2S_RENDER: PCM peak level: 150 / 32767 (0.5%)
I (214571) I2S_RENDER: PCM peak level: 123 / 32767 (0.4%)
I (214586) I2S_RENDER: PCM peak level: 173 / 32767 (0.5%)
I (214602) I2S_RENDER: PCM peak level: 757 / 32767 (2.3%)
I (214631) I2S_RENDER: PCM peak level: 1388 / 32767 (4.2%)
I (214646) I2S_RENDER: PCM peak level: 1245 / 32767 (3.8%)
I (214662) I2S_RENDER: PCM peak level: 652 / 32767 (2.0%)
I (214691) I2S_RENDER: PCM peak level: 365 / 32767 (1.1%)
I (214706) I2S_RENDER: PCM peak level: 282 / 32767 (0.9%)
I (214721) I2S_RENDER: PCM peak level: 243 / 32767 (0.7%)
I (214751) I2S_RENDER: PCM peak level: 296 / 32767 (0.9%)
I (214766) I2S_RENDER: PCM peak level: 229 / 32767 (0.7%)
I (214782) I2S_RENDER: PCM peak level: 218 / 32767 (0.7%)
I (214811) I2S_RENDER: PCM peak level: 201 / 32767 (0.6%)
I (214826) I2S_RENDER: PCM peak level: 176 / 32767 (0.5%)
I (214841) I2S_RENDER: PCM peak level: 165 / 32767 (0.5%)
I (214871) I2S_RENDER: PCM peak level: 145 / 32767 (0.4%)
I (214886) I2S_RENDER: PCM peak level: 120 / 32767 (0.4%)
I (214901) I2S_RENDER: PCM peak level: 144 / 32767 (0.4%)
I (214931) I2S_RENDER: PCM peak level: 91 / 32767 (0.3%)
I (214946) I2S_RENDER: PCM peak level: 120 / 32767 (0.4%)
I (214962) I2S_RENDER: PCM peak level: 150 / 32767 (0.5%)
I (214991) I2S_RENDER: PCM peak level: 103 / 32767 (0.3%)
I (215006) I2S_RENDER: PCM peak level: 72 / 32767 (0.2%)
I (215022) I2S_RENDER: PCM peak level: 92 / 32767 (0.3%)
I (215051) I2S_RENDER: PCM peak level: 92 / 32767 (0.3%)
I (215066) I2S_RENDER: PCM peak level: 142 / 32767 (0.4%)
I (215081) I2S_RENDER: PCM peak level: 96 / 32767 (0.3%)
I (215112) I2S_RENDER: PCM peak level: 75 / 32767 (0.2%)
I (215128) I2S_RENDER: PCM peak level: 87 / 32767 (0.3%)
I (215141) I2S_RENDER: PCM peak level: 108 / 32767 (0.3%)
I (215171) I2S_RENDER: PCM peak level: 127 / 32767 (0.4%)
I (215186) I2S_RENDER: PCM peak level: 150 / 32767 (0.5%)
I (215202) I2S_RENDER: PCM peak level: 168 / 32767 (0.5%)
I (215231) I2S_RENDER: PCM peak level: 181 / 32767 (0.6%)
I (215246) I2S_RENDER: PCM peak level: 131 / 32767 (0.4%)
I (215262) I2S_RENDER: PCM peak level: 211 / 32767 (0.6%)
I (215291) I2S_RENDER: PCM peak level: 180 / 32767 (0.5%)
I (215306) I2S_RENDER: PCM peak level: 312 / 32767 (1.0%)
I (215322) I2S_RENDER: PCM peak level: 199 / 32767 (0.6%)
I (215351) I2S_RENDER: PCM peak level: 214 / 32767 (0.7%)
I (215366) I2S_RENDER: PCM peak level: 202 / 32767 (0.6%)
I (215382) I2S_RENDER: PCM peak level: 228 / 32767 (0.7%)
I (215412) I2S_RENDER: PCM peak level: 200 / 32767 (0.6%)
I (215428) I2S_RENDER: PCM peak level: 353 / 32767 (1.1%)
I (215442) I2S_RENDER: PCM peak level: 399 / 32767 (1.2%)
I (215471) I2S_RENDER: PCM peak level: 392 / 32767 (1.2%)
I (215486) I2S_RENDER: PCM peak level: 876 / 32767 (2.7%)
I (215501) I2S_RENDER: PCM peak level: 551 / 32767 (1.7%)
I (215531) I2S_RENDER: PCM peak level: 711 / 32767 (2.2%)
I (215546) I2S_RENDER: PCM peak level: 623 / 32767 (1.9%)
I (215562) I2S_RENDER: PCM peak level: 458 / 32767 (1.4%)
I (215591) I2S_RENDER: PCM peak level: 630 / 32767 (1.9%)
I (215606) I2S_RENDER: PCM peak level: 662 / 32767 (2.0%)
I (215622) I2S_RENDER: PCM peak level: 793 / 32767 (2.4%)
I (215651) I2S_RENDER: PCM peak level: 1055 / 32767 (3.2%)
I (215666) I2S_RENDER: PCM peak level: 688 / 32767 (2.1%)
I (215682) I2S_RENDER: PCM peak level: 380 / 32767 (1.2%)
I (215711) I2S_RENDER: PCM peak level: 326 / 32767 (1.0%)
I (215726) I2S_RENDER: PCM peak level: 335 / 32767 (1.0%)
I (215742) I2S_RENDER: PCM peak level: 356 / 32767 (1.1%)
I (215771) I2S_RENDER: PCM peak level: 271 / 32767 (0.8%)
I (215786) I2S_RENDER: PCM peak level: 207 / 32767 (0.6%)
I (215802) I2S_RENDER: PCM peak level: 297 / 32767 (0.9%)
I (215831) I2S_RENDER: PCM peak level: 553 / 32767 (1.7%)
I (215846) I2S_RENDER: PCM peak level: 650 / 32767 (2.0%)
I (215862) I2S_RENDER: PCM peak level: 360 / 32767 (1.1%)
I (215892) I2S_RENDER: PCM peak level: 265 / 32767 (0.8%)
I (215906) I2S_RENDER: PCM peak level: 174 / 32767 (0.5%)
I (215922) I2S_RENDER: PCM peak level: 219 / 32767 (0.7%)
I (215951) I2S_RENDER: PCM peak level: 331 / 32767 (1.0%)
I (215966) I2S_RENDER: PCM peak level: 283 / 32767 (0.9%)
I (215982) I2S_RENDER: PCM peak level: 340 / 32767 (1.0%)
I (216011) I2S_RENDER: PCM peak level: 252 / 32767 (0.8%)
I (216027) I2S_RENDER: PCM peak level: 252 / 32767 (0.8%)
I (216042) I2S_RENDER: PCM peak level: 162 / 32767 (0.5%)
I (216071) I2S_RENDER: PCM peak level: 88 / 32767 (0.3%)
I (216086) I2S_RENDER: PCM peak level: 168 / 32767 (0.5%)
I (216102) I2S_RENDER: PCM peak level: 94 / 32767 (0.3%)
I (216133) I2S_RENDER: PCM peak level: 140 / 32767 (0.4%)
I (216150) I2S_RENDER: PCM peak level: 126 / 32767 (0.4%)
I (216162) I2S_RENDER: PCM peak level: 200 / 32767 (0.6%)
I (216191) I2S_RENDER: PCM peak level: 198 / 32767 (0.6%)
I (216206) I2S_RENDER: PCM peak level: 279 / 32767 (0.9%)
I (216221) I2S_RENDER: PCM peak level: 255 / 32767 (0.8%)
I (216251) I2S_RENDER: PCM peak level: 193 / 32767 (0.6%)
I (216266) I2S_RENDER: PCM peak level: 364 / 32767 (1.1%)
I (216283) I2S_RENDER: PCM peak level: 233 / 32767 (0.7%)
I (216311) I2S_RENDER: PCM peak level: 165 / 32767 (0.5%)
I (216327) I2S_RENDER: PCM peak level: 198 / 32767 (0.6%)
I (216342) I2S_RENDER: PCM peak level: 145 / 32767 (0.4%)
I (216372) I2S_RENDER: PCM peak level: 102 / 32767 (0.3%)
I (216386) I2S_RENDER: PCM peak level: 99 / 32767 (0.3%)
I (216402) I2S_RENDER: PCM peak level: 123 / 32767 (0.4%)
I (216432) I2S_RENDER: PCM peak level: 140 / 32767 (0.4%)
I (216446) I2S_RENDER: PCM peak level: 124 / 32767 (0.4%)
I (216461) I2S_RENDER: PCM peak level: 173 / 32767 (0.5%)
I (216491) I2S_RENDER: PCM peak level: 127 / 32767 (0.4%)
I (216506) I2S_RENDER: PCM peak level: 121 / 32767 (0.4%)
I (216522) I2S_RENDER: PCM peak level: 87 / 32767 (0.3%)
I (216551) I2S_RENDER: PCM peak level: 95 / 32767 (0.3%)
I (216566) I2S_RENDER: PCM peak level: 149 / 32767 (0.5%)
I (216581) I2S_RENDER: PCM peak level: 149 / 32767 (0.5%)
I (216611) I2S_RENDER: PCM peak level: 138 / 32767 (0.4%)
I (216627) I2S_RENDER: PCM peak level: 122 / 32767 (0.4%)
I (216642) I2S_RENDER: PCM peak level: 119 / 32767 (0.4%)
I (216671) I2S_RENDER: PCM peak level: 674 / 32767 (2.1%)
I (216686) I2S_RENDER: PCM peak level: 156 / 32767 (0.5%)

[TempoTian]

From the log see that input data is almost 0db, So the input level is not low. You can try to set volume curve to set max vol gain to 32db instead of 0db and hear if improved. If still not, it's mostly caused by speaker need change a speaker which match the codec output power.

I (212711) I2S_RENDER: PCM peak level: 30192 / 32767 (92.1%)

[deepakkumarbinwal]

will same increase input mic voice too ?

[TempoTian]

no only inc speaker volume

[deepakkumarbinwal]

what to do to increase mic output in webrtc and remove echo/noise filter in mic and speaker during webrtc or to enable AEC

[TempoTian]

Call int esp_codec_dev_set_in_gain(get_record_handle(), 32.0); to set input volume.
I have answer you how to add AEC in another thread you can check the steps.

[deepakkumarbinwal]

also is there any way to make AWS code as master/viewer during execution/runtime of code ?