aec之后频谱被限制在4k (AIS-2303)

[wangwei-ying3]

Checklist

• Checked the issue tracker for similar issues to ensure this is not a duplicate
• Read the documentation to confirm the issue is not addressed there and your configuration is set correctly
• Tested with the latest version to ensure the issue hasn't been fixed

How often does this bug occurs?

always

Expected behavior

Actual behavior (suspected bug)

aec之后频谱被限制在4k

Error logs or terminal output

Steps to reproduce the behavior

esp32s3
int ref_num = codec_->input_reference() ? 1 : 0;
std::string input_format = "MRM";

ESP_LOGI(TAG, "AFE Initialize start (input_format=%s, frame_samples=%d)", input_format.c_str(), frame_samples_);

srmodel_list_t *models = esp_srmodel_init("model");
if (!models) {
    ESP_LOGE(TAG, "srmodel_init failed, aborting AFE init");
    return;
}
char* ns_model_name = esp_srmodel_filter(models, ESP_NSNET_PREFIX, NULL);
char* vad_model_name = esp_srmodel_filter(models, ESP_VADN_PREFIX, NULL);

afe_config_t* afe_config = afe_config_init(input_format.c_str(), NULL, AFE_TYPE_VC, AFE_MODE_HIGH_PERF);
if (!afe_config) {
    ESP_LOGE(TAG, "afe_config_init failed");
    return;
}
afe_config->agc_mode = AFE_AGC_MODE_WEBRTC;
afe_config->aec_mode = AEC_MODE_VOIP_HIGH_PERF;
afe_config->vad_mode = VAD_MODE_1;
// afe_config->se_init = true;
afe_config->vad_min_noise_ms = 200;
if (vad_model_name) afe_config->vad_model_name = vad_model_name;
afe_config->ns_init = true;
afe_config->afe_ns_mode = AFE_NS_MODE_WEBRTC;
afe_config->afe_perferred_core = 1;
afe_config->afe_perferred_priority = 1;
// afe_config->agc_init = true;
afe_config->memory_alloc_mode = AFE_MEMORY_ALLOC_MORE_PSRAM;
// afe_config->agc_compression_gain_db = 15;
// afe_config->agc_target_level_dbfs = 5;

#ifdef CONFIG_USE_DEVICE_AEC
afe_config->aec_init = true;
afe_config->vad_init = false;
#else
afe_config->aec_init = false;
afe_config->vad_init = true;
#endif

afe_iface_ = esp_afe_handle_from_config(afe_config);
if (!afe_iface_) {
    ESP_LOGE(TAG, "esp_afe_handle_from_config failed");
    return;
}
afe_data_ = afe_iface_->create_from_config(afe_config);
if (!afe_data_) {
    ESP_LOGE(TAG, "afe create_from_config failed");
    return;
}

Project release version

sr-2.1.1,idf-5.4.3

System architecture

Intel/AMD 64-bit (modern PC, older Mac)

Operating system

Linux

Operating system version

esp32s3

Shell

ZSH

Additional context

No response

[sun-xiangyu]

这个是因为VC_AEC 算法内部做了降采样导致的，做降采样的目标是减少计算量。
后续我们可以增加一个选项来关闭降采样过程