Speech Processing Lab
Speech and Vision Research
Building speech systems for recognition, synthesis and retrieval in Indian languages.
About the Lab
The Speech Processing Lab (SPL) conducts goal-led research in speech and spoken language technologies, with a focus on Indian languages. The lab builds intelligent systems for automatic speech recognition (ASR), text-to-speech synthesis (TTS), speech translation, spoken and audio retrieval, speech biometrics, speaker and language identification, and emotion recognition, including a phonetic engine and secure voice-based access to information. Its research addresses the challenges of multilinguality, diverse accents, low-resource languages, and real-world acoustic conditions. By combining fundamental research with practical applications, the lab aims to build accessible and inclusive speech technologies for education, healthcare, digital governance, and human-computer interaction.
Our ResearchRecent Publications
View all publicationsResearch Areas
Speech Recognition
Building robust speech-to-text systems that work across diverse Indian languages, accents, and acoustic environments.
Text-to-Speech Synthesis
Developing natural sounding text-to-speech systems for Indian languages with focus on prosody and naturalness.
Speaker Recognition
Research on biometric identification using speech signals, including speaker verification and identification systems.
Language Identification
Automatic identification of spoken language from audio signals, particularly for Indian languages.
Emotion Recognition
Speech processing in emotion conditions, including emotion detection and emotion-aware speech conversion.
Projects
Stutter Detection Platform
CompletedSpeech analysis platform created for All India Institute of Speech and Hearing, Mysore for detecting stuttering patterns.
Speech-to-Speech Translation
ActivePerformance measurement platform for broadcast speeches and talks, as part of the Bhashini project.