{"id":23217784,"url":"https://github.com/chohner/ambinaural","last_synced_at":"2026-03-20T01:01:35.898Z","repository":{"id":30629365,"uuid":"34184825","full_name":"chohner/ambinaural","owner":"chohner","description":"Maps 4-chan b-format to 2-chan binaural","archived":false,"fork":false,"pushed_at":"2015-05-11T18:29:23.000Z","size":12580,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":4,"default_branch":"master","last_synced_at":"2025-02-11T10:58:57.452Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"Max","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/chohner.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2015-04-18T22:15:33.000Z","updated_at":"2017-11-06T04:18:56.000Z","dependencies_parsed_at":"2022-09-05T02:00:44.134Z","dependency_job_id":null,"html_url":"https://github.com/chohner/ambinaural","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chohner%2Fambinaural","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chohner%2Fambinaural/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chohner%2Fambinaural/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/chohner%2Fambinaural/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/chohner","download_url":"https://codeload.github.com/chohner/ambinaural/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":247348173,"owners_count":20924508,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-12-18T20:49:26.532Z","updated_at":"2026-02-13T12:46:20.943Z","avatar_url":"https://github.com/chohner.png","language":"Max","funding_links":[],"categories":[],"sub_categories":[],"readme":"# ambinaural\nMapping a 4 channel b-format (WXYZ) recording to 2-channel binaural. Ideal for mobile - fast, stable, low memory footprint.\n\n## Current implementations\nThe general b-format decoding is described as:\n\n![B Format Equation][b_format_equation]\n\nWhere ![phi][phi] is the *azimuth* and ![theta][theta] the *lateral* head position. Faktor ![omega][omega] changes the beamforming characteristic, from full spherical ( ![omega][omega] = 0) to full cardioid ( ![omega][omega] = 1)\n\n\n[b_format_equation]: http://www.sciweavers.org/tex2img.php?eq=S(%20%5Cvarphi%20,%20%20%5Ctheta,%20%20%5Comega%20%20)%20%3D%20(%20%5Comega%20%20-%201)%20%20%5Ccdot%20W%20%20%20%20%2B%20%5Comega%20[%20X%20%5Ccdot%20%20cos(%20%5Cvarphi%20)%20cos%20(%20%5Ctheta%20)%20%2B%20%20Y%20%5Ccdot%20%20sin(%20%5Cvarphi%20)%20cos%20(%20%5Ctheta%20)%20%2B%20Z%20%5Ccdot%20sin%20(%20%5Ctheta%20)%20]\u0026bc=White\u0026fc=Black\u0026im=jpg\u0026fs=12\u0026ff=arev\u0026edit=0 \"B Format Equation\"\n\n\n[phi]: http://www.sciweavers.org/tex2img.php?eq=\\varphi\u0026bc=White\u0026fc=Black\u0026im=jpg\u0026fs=12\u0026ff=arev\u0026edit=0 \"phi\"\n\n[theta]: http://www.sciweavers.org/tex2img.php?eq=\\theta\u0026bc=White\u0026fc=Black\u0026im=jpg\u0026fs=12\u0026ff=arev\u0026edit=0 \"theta\"\n\n[omega]: http://www.sciweavers.org/tex2img.php?eq=\\omega\u0026bc=White\u0026fc=Black\u0026im=jpg\u0026fs=12\u0026ff=arev\u0026edit=0 \"omega\"\n\n### Matlab\nFirst static proof of concept. Used to extract the necessary HRIRs from the KEMAR HRTF Database.\n\n### Ableton Live\nSimple project to blend between simple b-format beamforming and the proposed method. You first need to generate output using matlab. Uses Live version 9.\n\n### Max MSP\nFirst dynamic proof of concept. Loads input and HRIRs and convolves in real time. To run you must first download and install the [*HISSTools*](http://eprints.hud.ac.uk/14897/).\n\n## Thanks\n- [**KEMAR HRIR database**](http://interface.cipic.ucdavis.edu/) by the *CIPIC- Center for Image Processing and Integrated Computing*\n- **multiconvolve~** max-msp object from the [**HISSTools**](http://eprints.hud.ac.uk/14897/) collection by *Alexander  Harker and Pierre Alexandre Tremblay*\n\n## Authors\n[Christoph Hohnerlein](http://chrisclock.com), Maximilian Ilse\n\n## Copyright and License\nApache License 2.0, April 2015","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchohner%2Fambinaural","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fchohner%2Fambinaural","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fchohner%2Fambinaural/lists"}