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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_SPEECH_ENDPOINTER_ENERGY_ENDPOINTER_PARAMS_H_
#define CONTENT_BROWSER_SPEECH_ENDPOINTER_ENERGY_ENDPOINTER_PARAMS_H_
#include "content/common/content_export.h"
namespace content {
// Input parameters for the EnergyEndpointer class.
class CONTENT_EXPORT EnergyEndpointerParams {
public:
EnergyEndpointerParams();
void SetDefaults();
void operator=(const EnergyEndpointerParams& source);
// Accessors and mutators
float frame_period() const { return frame_period_; }
void set_frame_period(float frame_period) {
frame_period_ = frame_period;
}
float frame_duration() const { return frame_duration_; }
void set_frame_duration(float frame_duration) {
frame_duration_ = frame_duration;
}
float endpoint_margin() const { return endpoint_margin_; }
void set_endpoint_margin(float endpoint_margin) {
endpoint_margin_ = endpoint_margin;
}
float onset_window() const { return onset_window_; }
void set_onset_window(float onset_window) { onset_window_ = onset_window; }
float speech_on_window() const { return speech_on_window_; }
void set_speech_on_window(float speech_on_window) {
speech_on_window_ = speech_on_window;
}
float offset_window() const { return offset_window_; }
void set_offset_window(float offset_window) {
offset_window_ = offset_window;
}
float onset_detect_dur() const { return onset_detect_dur_; }
void set_onset_detect_dur(float onset_detect_dur) {
onset_detect_dur_ = onset_detect_dur;
}
float onset_confirm_dur() const { return onset_confirm_dur_; }
void set_onset_confirm_dur(float onset_confirm_dur) {
onset_confirm_dur_ = onset_confirm_dur;
}
float on_maintain_dur() const { return on_maintain_dur_; }
void set_on_maintain_dur(float on_maintain_dur) {
on_maintain_dur_ = on_maintain_dur;
}
float offset_confirm_dur() const { return offset_confirm_dur_; }
void set_offset_confirm_dur(float offset_confirm_dur) {
offset_confirm_dur_ = offset_confirm_dur;
}
float decision_threshold() const { return decision_threshold_; }
void set_decision_threshold(float decision_threshold) {
decision_threshold_ = decision_threshold;
}
float min_decision_threshold() const { return min_decision_threshold_; }
void set_min_decision_threshold(float min_decision_threshold) {
min_decision_threshold_ = min_decision_threshold;
}
float fast_update_dur() const { return fast_update_dur_; }
void set_fast_update_dur(float fast_update_dur) {
fast_update_dur_ = fast_update_dur;
}
float sample_rate() const { return sample_rate_; }
void set_sample_rate(float sample_rate) { sample_rate_ = sample_rate; }
float min_fundamental_frequency() const { return min_fundamental_frequency_; }
void set_min_fundamental_frequency(float min_fundamental_frequency) {
min_fundamental_frequency_ = min_fundamental_frequency;
}
float max_fundamental_frequency() const { return max_fundamental_frequency_; }
void set_max_fundamental_frequency(float max_fundamental_frequency) {
max_fundamental_frequency_ = max_fundamental_frequency;
}
float contamination_rejection_period() const {
return contamination_rejection_period_;
}
void set_contamination_rejection_period(
float contamination_rejection_period) {
contamination_rejection_period_ = contamination_rejection_period;
}
private:
float frame_period_; // Frame period
float frame_duration_; // Window size
float onset_window_; // Interval scanned for onset activity
float speech_on_window_; // Inverval scanned for ongoing speech
float offset_window_; // Interval scanned for offset evidence
float offset_confirm_dur_; // Silence duration required to confirm offset
float decision_threshold_; // Initial rms detection threshold
float min_decision_threshold_; // Minimum rms detection threshold
float fast_update_dur_; // Period for initial estimation of levels.
float sample_rate_; // Expected sample rate.
// Time to add on either side of endpoint threshold crossings
float endpoint_margin_;
// Total dur within onset_window required to enter ONSET state
float onset_detect_dur_;
// Total on time within onset_window required to enter SPEECH_ON state
float onset_confirm_dur_;
// Minimum dur in SPEECH_ON state required to maintain ON state
float on_maintain_dur_;
// Minimum fundamental frequency for autocorrelation.
float min_fundamental_frequency_;
// Maximum fundamental frequency for autocorrelation.
float max_fundamental_frequency_;
// Period after start of user input that above threshold values are ignored.
// This is to reject audio feedback contamination.
float contamination_rejection_period_;
};
} // namespace content
#endif // CONTENT_BROWSER_SPEECH_ENDPOINTER_ENERGY_ENDPOINTER_PARAMS_H_