Research
Research Interests
The primary focus of our research is on the development of adaptive signal processing and machine learning algorithms for audio signal processing, especially for active noise cancellation technology, hearing aids and hearables.
Areas of interest: Active Noise Control, Adaptive Signal Processing, Assistive Listening Devices, Hearables, Hearing Aids, Psychoacoustics
Research Facilities and Equipment
Active Noise Control Test Bench
A setup for testing active noise cancellation algorithms in a duct.
This setup was made in-house by Vinal Patel and Kamal Tewari, with support from the Mechanical Engineering Workshop of IIT Gandhinagar.
Audio Interfaces/Processors
Behringer FX2000 3D Multi-Engine Effects Processor
Behringer Super-X Pro CX2310 High-Precision Stereo 3-Way Crossover
Behringer UCA222 U-Control Ultra-Low Latency USB Audio Interface with Digital Output
Behringer Ultragraph Pro FBQ1502HD High-Definition 15-Band Stereo Graphic Equalizer with FBQ Feedback Detection System
Behringer U-Phoria UMC204HD Audiophile 2x4, 24-Bit/192 kHz USB Audio/MIDI Interface with MIDAS Mic Preamplifiers
Behringer U-Phoria UMC404HD Audiophile 4x4, 24-Bit/192kHz USB Audio/MIDI Interface with MIDAS Mic Preamplifiers
M-Audio M-Track 2X2M USB Interface with MIDI I/O
Novation Launch Control XL MK2 MIDI USB Ableton Live Controller w/ HUI Integration
PreSonus Audiobox USB 96 Recording System
PreSonus AudioBox1818 VSL- Advanced 18x18 USB 2.0 Recording Interface [Qty: 02]
Headphones (Noise Cancelling/Others)
Bose Quiet Comfort 25 Acoustic Noise Cancelling Headphone
Bose Quiet Comfort 20 Acoustic Noise Cancelling Headphone
Bose Quiet Comfort 15 Acoustic Noise Cancelling Headphone
Sennheiser HD 4.50 SE BT NC Bluetooth Wireless Noise Cancellation Headphone
Sony WH-1000XM3 Wireless Noise Cancelling Headphones
Sony WH-1000XM4 Wireless Noise Cancelling Headphones
Aftershokz Sportz Titanium Bone Conduction Headphone with Microphone
Audio-Technica ATH-M30x Over-Ear Professional Studio Monitor
Presonus HD7 Professional Monitoring Headphones
Sennheiser HD 579 Open-Back Headphone
Sennheiser HD 598 SR Open-Back Headphone
Sennheiser PMX 686G Sports Earbud Neckband Headset
Headphone/Hearing Aid Testing Equipment
Neumann KU100
Dummy Head Microphone
GRAS 45CA
Ear Protector Test Module, with right pinnae
Microphones
AKG P2 Instrument Dynamic Microphone
Behringer C-2 Condenser Cardioid Microphone [Qty: 08]
Behringer C4 Single Diaphragm Condenser Microphone Set
Behringer ECM8000 Condenser Ultra-Linear Measurement Condenser Microphone
GRAS 40 PL Array Microphone [Qty: 10]
M-Audio Uber Mic Professional USB Microphone
MXL Mics 770 Condenser Cardioid Microphone, Black
MXL Mics 990/991 Recording Package
Mixers
Behringer Q502USB 5-Channel Mixer
Behringer P A Mixer Xenyx Q802 USB
Yamaha MG06 6 Input Stereo Mixer [Qty: 3]
Real-time Controller
Speedgoat
Audio Performance Real-time Target Machine
Studio Monitors
Presonus Eris E8 Two-Way Active 8" Studio Monitor [Qty: 02]
Presonus Eris E5 High-Definition 2-way 5.25 inch Near Field Studio Monitors [Qty: 12]
M-Audio BX83 8" Powered Studio Reference Monitor Pair
M-Audio BX53 5" Powered Studio Reference Monitor Pair
A facility for conducting psychoacoustic experiments.
This facility has been setup at the Multi-sensory Perception experiment facility of the Cognitive Science Laboratory.
Sponsored Projects and Fellowships
"Development of techniques for ground based source localization using sparse array on-board LEO satellite", sponsored by Indian Space Research Organization, Department of Space, Government of India, Mar 2023 - Aug 2024.
"Development and analysis of low complexity single layer neural networks", sponsored by Science and Engineering Research Board, Department of Science and Technology, Government of India, Dec 2022 - Dec 2025.
"Design of hearables with psychoacoustic integration", sponsored by Science and Engineering Research Board, Department of Science and Technology, Government of India, Mar 2019 - Mar 2022 [Co-PI: Professor Meera Mary Sunny, Centre for Cognitive and Brain Sciences, IIT Gandhinagar].
"Design and implementation of acoustic beamforming systems in digital hearing aids", supported by the Indo-Australia Early and Mid-Career Researchers Fellowship Programme, Indian National Science Academy, May-Aug 2017.
"Design and development of a low cost binaural hearing aid", supported by the INSPIRE Faculty Award, Department of Science and Technology, Government of India, Nov 2013 - Nov 2018.
"Development of low cost intelligent headphones for improving social interactions of children with autism spectrum disorders", sponsored by the Department of Science and Technology, Government of India, Sep 2013 - Sep 2016.
Patents
"An apparatus for cancelling acoustic feedback and a method thereof", Patent No. 507174, India, Date of Filing: 28 March 2016.