Speech Recognition TRIZ Cases
- Noise Suppression Gain Optimization for Speech Recognition
A noise suppression system selects a gain value based on sub-band and time-frame features to optimize automatic speech recognition.
- Dialog System Proper Name Recognition via Contextual Weighting
A dialog system refines proper name lists using dynamic contextual weights and user models to improve recognition accuracy.
- Voice Recognition Dictionary Clustering for Unknown Word Registration
A voice processing apparatus clusters unknown words by phoneme similarity to update the recognition dictionary automatically.
- Voice Recognition Device Priority Selection
Electronic apparatus assigns priority levels to devices so only the highest priority unit executes voice commands, preventing simultaneous activation confusion.
- Voice Input System Sifting Space Reduction
A voice input system segments recognition using parameter-based sifting conditions to refine candidate lists.
- Event-Based Keyword Detector for Mobile Audio Power Reduction
A low-power event generator analyzes audio streams to activate a digital signal processor only upon keyword detection, reducing mobile device power consumption.
- Dynamic Voice Grammar for Search Accuracy
Dynamic grammar generation narrows the search scope to resolve the contradiction between large vocabulary coverage and reliable voice recognition accuracy.
- Speech Recognition Error Correction via Pinyin Intermediary
A speech recognition correction system converts results to pinyin for candidate text generation.
- Hybrid Speech Recognition System for Privacy and Accuracy
A hybrid speech recognition system combines embedded and network-based engines to process audio signals.
- Customizable Speech Recognition Neural Network Adaptation
A customizable speech recognition neural network adapts to target domains using frozen layers and aligned attention weights.
- Automatic Pronunciation Scoring via Acoustic Feature Extraction
An automatic evaluation system extracts nine rhythm and fluency features from speech signals to generate consistent pronunciation proficiency scores.
- Adaptive Voice Detection Circuit for Speech Recognition
An analysis circuit modifies voice detection thresholds based on false positive rates, reducing unnecessary activation of the speech recognition module.
- Adaptive Voice Activity Detection Circuit for Noise-Dependent Algorithm Selection
An adaptive voice activity detection circuit selects optimal algorithms based on detected environmental noise characteristics.
- Voice Assistant Intent Clarification via External Server Mediation
An electronic device transmits user utterances to an external server for processing and displays sample utterances for selection.
- Digital Assistant Latency Reduction via Preliminary Processing
A digital assistant initiates natural language processing and task flow evaluation during speech end-point detection to reduce response delays.
- Fabric-Covered Speaker Light Diffusion via Flexible Substrate
Flexible substrate layer interposed between fabric and housing diffuses light from embedded LEDs for clear visual feedback.
- Semantic Unit Set Correction via Phonetic Reference Matching
A system corrects semantic unit sets by matching improvement phonetic sounds against reference templates to replace inaccurate units.
- Random Confirmation Mechanism for Speech Recognition Confidence Assessment
Random confirmation mechanism samples uncertain speech results to assess system performance and reduce call routing errors.
- IoT Device Control via Server-Side Intent Mapping
A server processes unrecognized voice inputs to map user intent to actions, reducing cognitive load from predefined command constraints.
- Voice Interface Entity Recognition and Action Filtering
System filters available actions based on identified spoken entities to resolve interface complexity and usability issues.
- Speech Signal Reconstruction via SNR-Weighted Noise Reduction
A speech signal processing method combines noise reduction filtering with spectral envelope reconstruction to enhance audio output.
- Adaptive SPP Warping for Low SNR Noise Suppression
An enhanced MMSE determiner warps speech presence probability using a sigmoid function responsive to external signal-to-noise ratio.
- Haptic Speech Training System for Hearing Impaired Communication
A haptic output device translates audible speech into tactile vibrations for hearing impaired users.
- Dynamic Speaker Profile Adaptation for Virtual Assistant Voice Recognition
A virtual assistant system builds dynamic speaker profiles by continuously monitoring audio inputs and updating voice models in real time.
- Transition Mode Codebook for Speech Signal Error Propagation
Replacing adaptive codebooks with a glottal-shape codebook reduces error propagation during frame erasures while maintaining coding efficiency.
- Voice Control Server Device Matching Logic
Server matches voice commands to target devices using pre-registered profiles, eliminating manual device naming requirements.
- ASR Transcription Correction via Domain Context Matching
A transcription correction system matches extracted features against domain-specific indexes to replace mistranscribed entries.
- Voice Device Audio Fingerprinting to Filter Media Broadcasts
A voice device generates sound profiles for incoming audio and compares them against known media patterns to stop processing commands from media broadcasts.
- Single Utterance Semantic Extraction via Iterative Recognition Constraints
Iterative recognition extracts multiple semantic items from one utterance using prior constraints.
- Multimodal Browser Speech Disambiguation via Visibility Tracking
A multimodal browser tracks hyperlink visibility to resolve ambiguous speech recognition inputs.
- Voice Input Processing for Personalized User Command Segmentation
A voice processing system segments users by analyzing interaction patterns to customize command responses.