Professor Choueiri’s lecture on Spatial Audio and it’s modern applications.
This lecture directly references chapter (8) in the Immersive Sound textbook, where Professor Choueiri takes us on a deep dive on our IP #1: Binaural Audio over Loudspeakers. You can get the book below.
BACCH Labs’ 60+ Intellectual Property Items
8 Patents
Including 3D Sound for Speakers and Headphones, Multi-Listener Sweet Spots, HRTF Personalization, Room-Scale Virtual Reality, Enhanced Surround Sound, and more.
25 Proprietary Algorithms
Including 3D filter designers, Mono Correction, Listening Room Emulation, Head-tracked Navigation, Higher Order Ambisonics Decoding, 3D mixing, and much more.
25 Software Packages + Apps
Including the award-winning 3D rendering software BACCH-dSP, BACCH software packages for Kalimba, ADAU, Alsa, and Hexagon, SDKs for Android, Apple and Windows, BACCH Android and Apple Demo Apps, Surround Sound Personalization, Multi-Channel Extraction, and much more.
2 Hardware Packages
Including best-in-class BACCH Binaural Microphones (BM Pro), and an automated Sweet Spot Test System.
IP List
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BACCH 3D Sound (for speakers)
BACCH-HP (3D for headphones)
BACCH IRNR (Impulse Response Measurement with Noise Rejection)
BACCH-SFN (Sound Field Navigation)
MAHHLER (Multi-Listener Audio with High Isolation Delivery)
BACCH-AHI (Adaptive HRTF Individualization)
BACCH-RVR (Room-scale Virtual Reality)
BACCH-ESS (Enhanced Surround Sound)
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09. BACCH-HEADS (HRTF Extractor using a Database of Spherical-Harmonic-Correlated Measurements and Head Scans)
10. BACCH-CTD (Characterization of Transducer Directivity)
11. BACCH-BFD (BACCH Filter Designer)
12. BACCH-ABFD (Automatic BACCH™ Filter Designer)
13. BACCH-X (Multiple Sweet Spot Audio Delivery Using Phase Array)
14. BACCH-RHD (Robust Head-related Impulse Response Densification)
15. BACCH-ZfSC (Zipper-noise-free Sliding Convolution)
16. .bac File Format (Encrypted File Format for Proprietary FIR Filters)
17. BACCH-HEQ (Headphones Equalization)
18. BACCH-HNfE (HRTF Near-field Extension
19. BACCH-LyRE (Listening Room Emulation)
20. BACCH-MCC (Mono Component Correction)
21. BACCH-DiFEQ (Diffuse Field Equalization)
22. BACCH-BMC (Binaural Microphone Calibration)
23. u-BACCH (Universal BACCH™ Filter)
24. BACCH-Htap (Head-Tracked Audio Processor)
25. BACCH-HTRC (Head-Tracked Room Correction)
26. BACCH-VLS (Virtual Loudspeakers)
27. BACCH-3dm (3D Mixer)
28. BACCH-TRJ (3D Trajectory designer)
29. BACCH-HT-Nav (Head-tracked Navigation)
30. BACCH-HOA (Higher Order Ambisonics)
31. BACCH-hs^3 (Head-Steered Sound Spotlight)
32. BACCH-sme (Stereo Mic Emulation)
33. BACCH-BM Pro (In-ear Binaural Microphone)
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34. BACCH-dSP (desktop Signal Processor)
35. BACCHp Plug-in (Sliding Convolver Plug-in)
36. BACCH AHI (Adaptive HRTF Individualizer application)
37. BACCH Ba1 format (A container with all of the information to perform BACCH 3D rendering in a particular device)
38. BACCH Device Library (Library of measured filters)
39. BACCH Core Library (A monolithic-to-the-customer library that supports processing all signal flows requested by Ba1 file)
40. BACCH API (The Application Programming Interface to the BACCH Core Library)
41. Compressor (Single-band and multi-band compressors)
42. S-BACCH (Software-as-a-Service BACCH)
43. BACCH4Kalimba
44. BACCH4ADAU
45. BACCH4ALSA
46. BACCH4Hexagon
47. Raspberry Pi Demo with HiFiBerry
48. Beagleboard Demo and HDK
49. BACCH SDK for Android
50. BACCH SDK for Apple
51. BACCH SDK for Windows
52. BACCH Android Demo App
53. BACCH Apple Demo App
54. BACCH IMU Demo (Head tracking with MetaMotionR IMU (Inertial Measurement Unit) App Module)
55. AOSP Build (for Nexus 6P)
56. Surround Sound Virtualization
57. BACCH Unity Plug-Ins (BACCH Unity Plug-Ins, covers Spatializer, Effects, and Surround Sound Support)
58. Multi-Channel Extraction
Today’s Research is Tomorrow's Viral Product.
Recent publications from the 3D3A Lab:
A Formula for Low-Frequency Interaural Level Difference (2020)
Sridhar, R, Choueiri, E. Y. 2020
Performance of Linear Extrapolation Methods for Virtual Sound Field Navigation (2020)
Tykla, J. G., Choueiri, E. Y.
Fundamentals of a Parametric Method for Virtual Navigation within an Array of Ambisonics Microphones (2020)
Tylka, J. G., Choueiri, E. Y.
Tylka, J. G., Choueiri, E. Y.
Generalized Metrics for Constant Directivity (2019)
Sridhar, R., Tylka, J. G., Choueiri, E.Y.
Virtual Navigation of Ambisonics-Encoded Sound Fields Containing Near-Field Sources (2019)
Tylka, J. G.
Binaural Audio through Loudspeakers (2017)
Choueiri, E. Y.
Sridhar, R., Choueiri, E. Y.
A Database of Head-Related Transfer Function and Morphological Measurements (2017)
Sridhar, R., Tylka, J. G., Choueiri, E. Y.
A Toolkit for Customizing the ambiX Ambisonics-to-Binaural Renderer (2017)
Tylka, J. G., Choueiri, E. Y.
Models for Evaluating Navigational Techniques for Higher-Order Ambisonics (2017)
Tylka, J. G., Choueiri, E. Y.
Tylka, J. G., Boren, B. B., Choueiri, E. Y.