Speech activity detection Speech 4 Speech activity detections 4 Speech communication 4 Speech recognition 4 Adaptive calibration 2 Bottleneck features 2 Calibration 2 Channel bottlenecks 2 Channel degradation 2 Channel degradations 2 Computational linguistics 2 Data performance 2 Decision threshold 2 Feature normalization 2 Language recognition 2 Model Adaptation 2 National Institute of Standards and Technology 2 Noise robustness 2 Non-stationary noise 2 Nonstationary noise 2 Signal detection 2 Signaltonoise ratio (SNR) 2 Speech processing 2 Spoken language recognition 2 Statistical tests 2 Testing 2 bottleneck features 2 deep neural networks 2 degraded channels 2