https://audio.dev/ -- @audiodevcon
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Spatial Localization and Techniques for Synthesizing Real-Time Binaural Audio for Headphones - Harsha Vardhan Rapeti - ADCx India 2025
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Spatial audio has become increasingly popular, with new applications emerging in areas like virtual reality (VR), home theatres, and spatial audio headphones. These innovations provide users with more engaging and interactive experiences.
To effectively reproduce binaural signals from sound sources in different locations, it’s essential to grasp how we perceive the origin of sounds. This involves looking at binaural audio signals from various experiments, which helps us grasp how our ears and brain work together to locate sounds in space.
The Talk Covers:
1 Terminology, Meaning and Basic Equations (Pressure wave related).
2 How does spatial localisation work in Free fields and closed fields.
- Static and Dynamic Cues.
- Human Ear anatomy Effecting the pressure waves.
- psychological cues.
3 Reproducing Binaural audio on Headphones.
- Head Related Transfer functions for near field and far field signals, spectrum modifications.
- Delaying channels to replicate Intra-aural delay.
- Replicating the change in the energy level of the audio signal.
- *
4 Implementation problems and overcoming them. Tricks to Interpolating between fixed number of HRTFs for a smooth transition.
5 Q&A
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Slides: https://data.audio.dev/talks/ADCxIndia/2025/spatial-localization-and-techniques-for-synthesizing-real-time-binaural-audio/slides.pptx
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Harsha Vardhan Rapeti
Harsha is a c++ programmer, interested in audio and Linux stuff. Checkout more of his stuff at https://github.com/Harsha-vardhan-R
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Streamed & Edited by Digital Medium Ltd: https://online.digital-medium.co.uk
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Organized and produced by JUCE: https://juce.com/
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Special thanks to the ADCx India Team:
Sophie Carus
Derek Heimlich
Andrew Kirk
Bobby Lombardi
Tom Poole
Ralph Richbourg
Jim Roper
Jonathan Roper
Prashant Mishra
#spatialaudio #binauralaudio #adc #audiodev #audio #conferenceaudio #audioprocessing #audioproduction #audioprogramming #sound #cpp #musictech #audiotech #audiotechnology