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Diffstat (limited to 'dom/media/webspeech/recognition/energy_endpointer_params.h')
| -rw-r--r-- | dom/media/webspeech/recognition/energy_endpointer_params.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/dom/media/webspeech/recognition/energy_endpointer_params.h b/dom/media/webspeech/recognition/energy_endpointer_params.h new file mode 100644 index 0000000000..6437c6dc0f --- /dev/null +++ b/dom/media/webspeech/recognition/energy_endpointer_params.h @@ -0,0 +1,159 @@ +// 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_ |