Spoken Language Forensics & Informatics (SLFI) group
Speech Lab, LTRC, IIIT-Hyderabad
We extract signatures indicating how the spoken content was said? and use the signatures for robust spoken information retrieval
Journals (Accepted and/or Published):
Jhansi Mallela, Sai Harshitha, Chiranjeevi Yarra, "A comparative analysis of sequential models that integrate syllable dependency for automatic syllable stress detection" in Interspeech 2024. [pdf]
Sai Harshitha, Jhansi Mallela, and Chiranjeevi Yarra, "Post-Net: A linguistically inspired sequence-dependent transformed neural architecture for automatic syllable stress detection" in Interspeech 2024. [pdf]
Sirigiraju Meenakshi, Arjun Rajasekar, Abhishikth Meejuri, and Chiranjeevi Yarra, "IIITH Ucchar e-Sudharak: An automatic English pronunciation corrector for school-going children with a teacher in the loop" in Interspeech 2024. [pdf]
Jhansi Mallela, Sai Harshitha, Chiranjeevi Yarra, "Exploring the Use of Self-Supervised Representations for Automatic Syllable Stress Detection" in NCC 2024. [pdf]
Nayan Anand, Meenakshi Sirigiraju and Chiranjeevi Yarra, "Unsupervised pronunciation assessment analysis using utterance level alignment distance with self-supervised representations" in Indicon 2023. [pdf]
Nayan Anand, Meenakshi Sirigiraju and Chiranjeevi Yarra, "IIITH MM2 Speech-Text: A preliminary data for automatic spoken data validation with matched and mismatched speech-text" in O-COCOSDA 2023. (Received Best Paper Award) [pdf]
Jhansi Mallela, Prasanth Sai Boyina, Chiranjeevi Yarra, "A comparison of learned representations with jointly optimized VAE and DNN for syllable stress detection" in SPECOM 2023. [pdf]
Snehal Ranjan, Sai Nanduri, Prakul Virdi, Chiranjeevi Yarra, "Analysis of Natural Language Understanding Systems with L2 learner specific synthetic grammatical errors based on Parts-of-Speech" in SPECOM 2023. [pdf]
Priyanshi Pal, Shelly Jain, Anil Kumar Vuppala, Chiranjeevi Yarra, Prasanta Kumar Ghosh, "Study of Indian English Pronunciation Variabilities relative to Received Pronunciation" in SPECOM 2023. [pdf]
Chowdam Venkata Tirumala Kumar, Sirigiraju Meenakshi, Prasanta Kumar Ghosh, Chiranjeevi Yarra, "Can the decoded text from automatic speech recognition effectively detect spoken grammar errors?" in SLaTE, 2023. [pdf]
Shelly Jain, Priyanshi Pa, Anil Kumar Vuppala, Prasanta Ghosh, Chiranjeevi Yarra, "An Investigation of Indian Native Language Phonemic Influences on L2 English Pronunciations" in Interspeech 2023. [pdf]
Priyanshi Pal, Chiranjeevi Yarra, Prasanta Kumar Ghosh, "Voistutor 2.0: A Speech Corpus with Phonetic Transcription for Pronunciation Evaluation of Indian L2 English Learners" in O-COCOSDA 2022. [pdf]
Likith Reddy, Vamsi Kumar, Sharma, S. K., Kamalakar Dadi, Chiranjeevi Yarra, Bapi Raju and Srijitesh Rajendran, "mulEEG: A Multi-View Representation Learning on EEG Signals" in MICCAI 2022. [pdf]
Shelly Jain, Aditya Yadavalli, Ganesh Sai Mirishkar, Chiranjeevi Yarra, and Anil Kumar Vuppala,"IE-CPS Lexicon: An Automatic Speech Recognition Oriented Indian-English Pronunciation Dictionary", 18th ICON, NIT Silchar, December 2021. [pdf]
Chiranjeevi Yarra, Prasanta Kumar Ghosh, "Noise robust pitch stylization using minimum mean absolute error criterion" in Interspeech 2021, Brno, Czech Republic. [pdf]
Anuj Diwan, Rakesh Vaideeswaran, Sanket Shah, Ankita Singh, Srinivasa Raghavan, Shreya Khare, Vinit Unni, Saurabh Vyas, Akash Rajpuria, Chiranjeevi Yarra, Ashish Mittal, Prasanta Kumar Ghosh, Preethi Jyothi, Kalika Bali, Vivek Seshadri, Sunayana Sitaram, Samarth Bharadwaj, Jai Nanavati, Raoul Nanavati, Karthik Sankaranarayanan, Tejaswi Seeram, Basil Abraham, "Multilingual and code-switching ASR challenges for low resource Indian languages", in Interspeech 2021, Brno, Czech Republic. [pdf]
Pavan Kumar J, Chiranjeevi Yarra, Prasanta Kumar Ghosh, "DNN based phrase boundary detection using knowledge based features and the feature representations from CNN" in National Conference on Communications (NCC), Kanpur, India. [pdf]
Kausthubha N K, Chiranjeevi Yarra, Om D. Deshmukh, Prasanta Kumar Ghosh, "SPIRE-ABC: An online tool for acoustic-unit boundary correction (ABC) via crowdsourcing", in Oriental COCOSDA 2020, Yangon, Myanmar. [pdf]
Avni Rajpal, Achuth Rao MV, Chiranjeevi Yarra, Ritu Aggarwal, Prasanta Kumar Ghosh, "Pseudo likelihood correction technique for low resource accented ASR", in ICASSP 2020, Barcelona, Spain. [pdf]
Chiranjeevi Yarra, Ritu Aggarwal, Avni Rajpal, Prasanta Kumar Ghosh, "Indic TIMIT and Indic English lexicon: A speech database of Indian speakers using TIMIT stimuli and a lexicon from their mispronunciations", in Oriental COCOSDA 2019, Cebu City, Philippines. [pdf]
Chiranjeevi Yarra, Aparna Srinivasan, Chandana Srinivasa, Ritu Aggarwal, Prasanta Kumar Ghosh, "voisTUTOR corpus: A speech corpus of Indian L2 English learners for pronunciation assessment", in Oriental COCOSDA 2019, Cebu City, Philippines. [pdf]
Chiranjeevi Yarra, Manoj Kumar Ramanathi, Prasanta kumar Ghosh, "Comparison of automatic syllable stress detection quality with time-aligned boundaries and context dependencies," accepted for Interspeech workshop on Speech and Language Technology for Education (SLaTE 2019), Graz, Austria. [pdf]
Aparna Srinivasan, Chiranjeevi Yarra, Prasanta Kumar Ghosh, "Automatic assessment of pronunciation and its dependent factors by exploring their interdependencies using DNN and LSTM", accepted for Interspeech workshop on Speech and Language Technology for Education (SLaTE 2019), Graz, Austria. [pdf]
Sweekar Sudhakara, Manoj Kumar Ramanathi, Chiranjeevi Yarra, Anurag Das, Prasanta Kumar Ghosh, "A comparative study of noise robustness of goodness of pronunciation (GoP) measures and its modifications based on teacher's utterance", accepted for Interspeech workshop on Speech and Language Technology for Education (SLaTE 2019), Graz, Austria. [pdf]
Chiranjeevi Yarra, Prasanta Kumar Ghosh, "voisTUTOR: Virtual Operator for Interactive Spoken English TUTORing", accepted for Interspeech workshop on Speech and Language Technology for Education (SLaTE 2019), Graz, Austria. [pdf]
Atreyee Saha, Chiranjeevi Yarra, Prasanta Kumar Ghosh, "Low resource automatic intonation classification using gated recurrent unit (GRU) networks pre-trained with synthesized pitch patterns", accepted for Interspeech 2019, Graz, Austria. [pdf]
Manoj Kumar Ramanathi, Chiranjeevi Yarra, Prasanta Kumar Ghosh, "ASR inspired unsupervised syllable stress detection for pronunciation evaluation", accepted for Interspeech 2019, Graz, Austria. [pdf]
Sweekar Sudhakara, Manoj Kumar Ramanathi, Chiranjeevi Yarra, Prasanta Kumar Ghosh, "An improved goodness of pronunciation (GoP) measure for pronunciation evaluation with DNN-HMM system considering HMM transition probabilities", accepted for Interspeech 2019, Graz, Austria. [pdf]
Chiranjeevi Yarra, Aparna Srinivasan, Srvani Gottimukkala, Prasanta Kumar Ghosh, "SPIRE-fluent: A self-learning app for tutoring oral fluency to second language English learners", accepted for Interspeech 2019, Graz, Austria. [pdf]
Chiranjeevi Yarra, Prasanta Kumar Ghosh, "An automatic classification of intonation using temporal structure in utterance-level pitch patterns for British English speech," in Indicon 2018, Coimbatore, India. [pdf]
Chiranjeevi Yarra, Achuth Rao MV, Om D. Deshmukh, Prasanta Kumar Ghosh, "Automatic identification of native language from non-native spoken English audio using novel acoustic and prosodic feature selection strategies," in Indicon 2018, Coimbatore, India. [pdf]
Chiranjeevi Yarra, "Temporal analysis of spoken language learning for automatic tutoring" in Fourth Doctoral Consortium, Hyderabad, India. [pdf]
Chandana S, Chiranjeevi Yarra, Ritu Aggarwal, Sanjeev Kumar Mittal, Kausthubha N K, Raseena K T, Astha Singh, Prasanta Kumar Ghosh, "Automatic visual augmentation for concatenation based synthesized articulatory videos from real-time MRI data for spoken language training," in Interspeech 2018, Hyderabad, India. [pdf]
Anand P A, Chiranjeevi Yarra, Kausthubha N K, Prasanta Kumar Ghosh, "Intonation tutor by SPIRE (In-SPIRE): An online tool for an automatic feedback to the second language learners in learning intonation," in Interspeech 2019, Hyderabad, India. [pdf]
Chiranjeevi Yarra, Anand P A, Kausthubha N K, Prasanta Kumar Ghosh, "SPIRE-SST: An automatic web-based self-learning tool for syllable stress tutoring (SST) to the second language learners," in Interspeech 2018, Hyderabad, India. [pdf]
Urvish Desai, Chiranjeevi Yarra, Prasanta Kumar Ghosh, "Concatenative articulatory video synthesis using real-time MRI data for spoken language training", in ICASSP 2018, Calgary, Canada. [pdf]
Srinivasa Raghavan, Nisha Meenakshi, Sanjeev Kumar Mittal, Chiranjeevi Yarra, Anupam Mandal, KR Prasanna Kumar, Prasanta Kumar Ghosh, "A comparative study on the effect of different codecs on speech recognition accuracy using various acoustic modeling techniques", in Twenty-third National Conference on communications (NCC) 2017, Chennai, India. [pdf]
Chiranjeevi Yarra, Om D. Deshmukh, Prasanta Kumar Ghosh, "Automatic detection of syllable stress using sonority based prominence features for pronunciation evaluation", in ICASSP 2017, New Orleans, USA. [pdf]
Supriya Nagesh, Chiranjeevi Yarra, Om D. Deshmukh, Prasanta Kumar Ghosh, "A robust speech rate estimation based on the activation profile from the selected acoustic unit dictionary", in ICASSP 2016, Shanghai, China. [pdf]
Nisha Meenakshi, Chiranjeevi Yarra, B. K. Yamini, Prasanta Kumar Ghosh, "Comparison of speech quality with and without sensors in electromagnetic articulograph AG 501 recording." , in Interspeech 2014, MAX Atria, Singapore. [pdf]
Chiranjeevi Yarra, Santosh Biswas and Siddarth Mukhopadhayay, "Synthesis of analog inputs for testing of digital modules in mixed signal VLSI circuits", in Thirteenth VDAT symposium 2009, Bangalore, India. [pdf]
- Chiranjeevi Yaara, Prasanta Kumar Ghosh, "Automatic syllable stress detection under non-parallel label and data condition" Speech Communication vol-138 (2022): 80-87.[pdf]
- Aparna Srinivasan, Divya Singh, Chiranjeevi Yarra, Aravind Illa, Prasanta Kumar Ghosh, "A robust speaking rate estimator using a CNN-BLSTM network," in Circuits, Systems, and Signal Processing (CSSP), Springer, pp. 1-23, 2021.[pdf]
- Chiranjeevi Yarra, Supriya Nagesh, Om D. Deshmukh, Prasanta Kumar Ghosh, "Noise robust speech rate estimation using SNR dependent sub-band selection and peak detection strategy," in The Journal of Acoustic Society of America, 146(3), pp. 1615-1628, 2019.[pdf]
- Chiranjeevi Yarra, Prasanta Kumar Ghosh, "Automatic intonation classification for British English speech using temporal patterns in utterance-level pitch contour and perceptually motivated pitch transformation," in The Journal of Acoustic Society of America-Express Letters (JASA-EL), 2018.[pdf]
- Chiranjeevi Yarra, Om D. Deshmukh, Prasanta Kumar Ghosh, "A frame selective dynamic programming (FSDP) approach for noise robust pitch estimation," in The Journal of Acoustic Society of America (JASA), 144(4), pp. 2289-2300, 2018. [pdf]
- Chiranjeevi Yarra, Om D. Deshmukh, and Prasanta Kumar Ghosh, "A mode-shape classification technique for robust speechrate estimation and syllable nuclei detection", in Speech Communication, Elsevier, 78, pp. 62-71, 2016. [pdf]
- Chiranjeevi Yarra, Vijaya Krishna Nagnoor, Prasanta Kumar Ghosh, "A study on speech rhythm discrimination among seven Indian languages -- Hindi, Bengali, Marathi, Kannada, Malayalam, Tamil and Telugu," under review.