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+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef CONTENT_BROWSER_SPEECH_ENDPOINTER_ENERGY_ENDPOINTER_PARAMS_H_
+#define CONTENT_BROWSER_SPEECH_ENDPOINTER_ENERGY_ENDPOINTER_PARAMS_H_
+
+namespace mozilla {
+
+// Input parameters for the EnergyEndpointer class.
+class 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 mozilla
+
+#endif // CONTENT_BROWSER_SPEECH_ENDPOINTER_ENERGY_ENDPOINTER_PARAMS_H_