{"id":13454900,"url":"https://github.com/mtytel/helm","last_synced_at":"2025-10-23T10:30:36.321Z","repository":{"id":25522201,"uuid":"28954234","full_name":"mtytel/helm","owner":"mtytel","description":"Helm - a free polyphonic synth with lots of modulation","archived":false,"fork":false,"pushed_at":"2022-09-24T04:23:20.000Z","size":40872,"stargazers_count":2399,"open_issues_count":133,"forks_count":204,"subscribers_count":92,"default_branch":"master","last_synced_at":"2025-02-01T11:11:12.497Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"http://tytel.org/helm","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"gpl-3.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/mtytel.png","metadata":{"files":{"readme":"README.md","changelog":"changelog","contributing":null,"funding":null,"license":"COPYING","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2015-01-08T07:27:12.000Z","updated_at":"2025-01-24T19:30:53.000Z","dependencies_parsed_at":"2022-07-07T22:52:02.989Z","dependency_job_id":null,"html_url":"https://github.com/mtytel/helm","commit_stats":null,"previous_names":[],"tags_count":9,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mtytel%2Fhelm","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mtytel%2Fhelm/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mtytel%2Fhelm/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mtytel%2Fhelm/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/mtytel","download_url":"https://codeload.github.com/mtytel/helm/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":237808202,"owners_count":19369604,"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":"2024-07-31T08:00:59.131Z","updated_at":"2025-10-23T10:30:32.311Z","avatar_url":"https://github.com/mtytel.png","language":"C++","readme":"## Helm\nHelm is a free, cross-platform, polyphonic synthesizer that runs on GNU/Linux, Mac, and Windows as a standalone program and as a LV2/VST/AU/AAX plugin. Release is in beta so there are outstanding bugs. Please send any bugs found to matthewtytel@gmail.com\n\n### Installing:\nGo to [tytel.org/helm](http://tytel.org/helm) for builds.\n\n### Building:\nIf you want to build AAX plugins You'll need its SDK located in ~/srcs  \nFor AU on the Mac you'll want to put the CoreAudio SDK in /Applications/Xcode.app/Contents/Developer/Extras/CoreAudio  \nNothing extra is needed for building VST/LV2 plugins\n\n#### Linux\nTo build and install the standalone, lv2 and vst plugin:\n```bash\nmake\nsudo make install\n```\n\nOther make commands:\n```bash\n# Build just the Linux standalone executable:\nmake standalone\n\n# Build just the Linux LV2 plugin:\nmake lv2\n\n# Build just the Linux VST plugin\nmake vst\n\n# Install just the Linux standalone executable:\nsudo make install_standalone\n\n# Install just the Linux LV2 plugin:\nsudo make install_lv2\n\n# Install just the Linux VST plugin\nsudo make install_vst\n```\n\nThe standalone executable is built to standalone/builds/linux/build and installed to /usr/bin\nThe LV2 plugin is built to builds/linux/LV2 and installed to /usr/lib/lv2\nThe VST plugin is built to builds/linux/VST and installed to /usr/lib/lxvst\n\n#### OSX\nOpen /standalone/builds/osx/Helm.xcodeproj for standalone version  \nOpen /builds/osx/Helm.xcodeproj for plugin versions\n\n#### Windows\nOpen /standalone/builds/vs15/Helm.sln for standalone version  \nOpen /builds/vs15/Helm.sln for plugin versions\n\n### Features:\n - 32 voice polyphony\n - Interactive visual interface\n - Powerful modulation system with live visual feedback\n - Dual oscillators with cross modulation and up to 15 unison oscillators each\n - Sub oscillator with shuffle waveshaping\n - Oscillator feedback and saturation for waveshaping\n - 12 different waveforms\n - Blending between 12 or 24dB low/band/high pass filter\n - Low/Band/High Shelf filters\n - 2 monophonic and 1 polyphonic LFO\n - Step sequencer\n - Lots of modulation sources including polyphonic aftertouch\n - Simple arpeggiator\n - Effects: Formant filter, stutter, delay, distortion, reverb\n\n![alt tag](http://tytel.org/static/images/helm_screenshot.png)\n","funding_links":[],"categories":["Applications","C++","Instruments","应用","Multimedia"],"sub_categories":["Audio","音频"],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmtytel%2Fhelm","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmtytel%2Fhelm","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmtytel%2Fhelm/lists"}