streamDataSource accuracyTracker speedTracker memoryTracker recognizerMonitor accuracyTracker rejectionTracker speedTracker memoryTracker recognizerMonitor streamDataSource preemphasizer windower fft melFilterBank dct batchCMN featureExtraction concatDataSource speechClassifier speechMarker nonSpeechDataFilter preemphasizer windower fft melFilterBank dct liveCMN featureExtraction linguistStats configMonitor