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/*
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef API_AUDIO_ECHO_CANCELLER3_CONFIG_H_
#define API_AUDIO_ECHO_CANCELLER3_CONFIG_H_
#include <stddef.h> // size_t
namespace webrtc {
// Configuration struct for EchoCanceller3
struct EchoCanceller3Config {
EchoCanceller3Config();
EchoCanceller3Config(const EchoCanceller3Config& e);
struct Delay {
size_t default_delay = 5;
size_t down_sampling_factor = 4;
size_t num_filters = 6;
size_t api_call_jitter_blocks = 26;
size_t min_echo_path_delay_blocks = 0;
size_t delay_headroom_blocks = 2;
size_t hysteresis_limit_1_blocks = 1;
size_t hysteresis_limit_2_blocks = 1;
size_t skew_hysteresis_blocks = 3;
} delay;
struct Filter {
struct MainConfiguration {
size_t length_blocks;
float leakage_converged;
float leakage_diverged;
float error_floor;
float noise_gate;
};
struct ShadowConfiguration {
size_t length_blocks;
float rate;
float noise_gate;
};
MainConfiguration main = {13, 0.005f, 0.1f, 0.001f, 20075344.f};
ShadowConfiguration shadow = {13, 0.7f, 20075344.f};
MainConfiguration main_initial = {12, 0.05f, 5.f, 0.001f, 20075344.f};
ShadowConfiguration shadow_initial = {12, 0.9f, 20075344.f};
size_t config_change_duration_blocks = 250;
} filter;
struct Erle {
float min = 1.f;
float max_l = 4.f;
float max_h = 1.5f;
} erle;
struct EpStrength {
float lf = 1.f;
float mf = 1.f;
float hf = 1.f;
float default_len = 0.f;
bool echo_can_saturate = true;
bool bounded_erl = false;
} ep_strength;
struct Mask {
Mask();
Mask(const Mask& m);
float m0 = 0.1f;
float m1 = 0.01f;
float m2 = 0.0001f;
float m3 = 0.01f;
float m5 = 0.01f;
float m6 = 0.0001f;
float m7 = 0.01f;
float m8 = 0.0001f;
float m9 = 0.1f;
float gain_curve_offset = 1.45f;
float gain_curve_slope = 5.f;
float temporal_masking_lf = 0.9f;
float temporal_masking_hf = 0.6f;
size_t temporal_masking_lf_bands = 3;
} gain_mask;
struct EchoAudibility {
float low_render_limit = 4 * 64.f;
float normal_render_limit = 64.f;
float floor_power = 2 * 64.f;
float audibility_threshold_lf = 10;
float audibility_threshold_mf = 10;
float audibility_threshold_hf = 10;
bool use_stationary_properties = true;
} echo_audibility;
struct RenderLevels {
float active_render_limit = 100.f;
float poor_excitation_render_limit = 150.f;
float poor_excitation_render_limit_ds8 = 20.f;
} render_levels;
struct GainUpdates {
struct GainChanges {
float max_inc;
float max_dec;
float rate_inc;
float rate_dec;
float min_inc;
float min_dec;
};
GainChanges low_noise = {2.f, 2.f, 1.4f, 1.4f, 1.1f, 1.1f};
GainChanges initial = {2.f, 2.f, 1.5f, 1.5f, 1.2f, 1.2f};
GainChanges normal = {2.f, 2.f, 1.5f, 1.5f, 1.2f, 1.2f};
GainChanges saturation = {1.2f, 1.2f, 1.5f, 1.5f, 1.f, 1.f};
GainChanges nonlinear = {1.5f, 1.5f, 1.2f, 1.2f, 1.1f, 1.1f};
float max_inc_factor = 2.0f;
float max_dec_factor_lf = 0.25f;
float floor_first_increase = 0.00001f;
} gain_updates;
struct EchoRemovalControl {
struct GainRampup {
float initial_gain = 0.0f;
float first_non_zero_gain = 0.001f;
int non_zero_gain_blocks = 187;
int full_gain_blocks = 312;
} gain_rampup;
bool has_clock_drift = false;
bool linear_and_stable_echo_path = false;
} echo_removal_control;
struct EchoModel {
EchoModel();
EchoModel(const EchoModel& e);
size_t noise_floor_hold = 50;
float min_noise_floor_power = 1638400.f;
float stationary_gate_slope = 10.f;
float noise_gate_power = 27509.42f;
float noise_gate_slope = 0.3f;
size_t render_pre_window_size = 1;
size_t render_post_window_size = 1;
size_t render_pre_window_size_init = 10;
size_t render_post_window_size_init = 10;
float nonlinear_hold = 1;
float nonlinear_release = 0.001f;
} echo_model;
struct Suppressor {
size_t bands_with_reliable_coherence = 5;
} suppressor;
};
} // namespace webrtc
#endif // API_AUDIO_ECHO_CANCELLER3_CONFIG_H_