{"id":18953413,"url":"https://github.com/kreshikhin/scituner","last_synced_at":"2025-04-15T14:58:53.851Z","repository":{"id":42207609,"uuid":"41881247","full_name":"kreshikhin/SciTuner","owner":"kreshikhin","description":"SciTuner is a guitar tuner written in Swift3","archived":false,"fork":false,"pushed_at":"2021-10-26T08:42:59.000Z","size":5100,"stargazers_count":134,"open_issues_count":5,"forks_count":31,"subscribers_count":6,"default_branch":"master","last_synced_at":"2025-04-15T14:58:41.398Z","etag":null,"topics":["frequency-estimation","guitar","guitar-tuner","tuner","wave","waveform"],"latest_commit_sha":null,"homepage":"","language":"Swift","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/kreshikhin.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2015-09-03T20:07:45.000Z","updated_at":"2025-02-20T18:45:21.000Z","dependencies_parsed_at":"2022-07-10T03:46:42.753Z","dependency_job_id":null,"html_url":"https://github.com/kreshikhin/SciTuner","commit_stats":null,"previous_names":[],"tags_count":2,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kreshikhin%2FSciTuner","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kreshikhin%2FSciTuner/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kreshikhin%2FSciTuner/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kreshikhin%2FSciTuner/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/kreshikhin","download_url":"https://codeload.github.com/kreshikhin/SciTuner/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":249094940,"owners_count":21211837,"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":["frequency-estimation","guitar","guitar-tuner","tuner","wave","waveform"],"created_at":"2024-11-08T13:38:27.025Z","updated_at":"2025-04-15T14:58:53.825Z","avatar_url":"https://github.com/kreshikhin.png","language":"Swift","funding_links":[],"categories":[],"sub_categories":[],"readme":"\n# SciTuner 2.0\n\n[![Build Status][travis-image]][travis-url]\n[![License: MIT][license-image]][license-url]\n[![Platform][platform-image]][platform-url]\n[![Coverage Status](https://coveralls.io/repos/github/kreshikhin/scituner/badge.svg?branch=master)](https://coveralls.io/github/kreshikhin/scituner?branch=master)\n\nSciTuner is guitar tuner with real-time signal visualization.\nThe application uses digital signal processing algorithm for accurate frequency estimation and wave visualization.\nSciTuner presents many useful features:\n\n- Works with guitars, ukuleles, banjos, violins and some other instruments\n- Allows to see a wave form of a sound in real time\n- Suppresses false harmonics in filter mode (on by default)\n- Allows to tune on 5th, 7th and 12th frets for fine tune\n- Makes frequency estimation with precision ±0,1Hz\n- Allows to freeze the wave form and values by button \"pause\"\n- Works in noisy conditions\n\n## Available On Appstore\n\nThe previous version of SciTuner 1.1 is available on AppStore. SciTuner 2.0 is coming soon.\n\n[![FREE Download from Appstore][appstore-image]](https://itunes.apple.com/us/app/scituner/id952300084?mt=8)\n\n## Screenshots\n\n![Screenshots][screenshots-image]\n\n## How It Works\n\nThe main controller is TunerViewController. This controller works with three models object `Tuner`, `Processing` and `Microphone`.\n`Processing` receives sound data from `Microphone` through controller and calculates power spectrum by `FFT`.\nSpectrum is used for estimation greatest peak position in frequency domain. Because a guitar sound may have many harmonics, it's necessary also detect harmonic order. Artificial Neural Network is used for this purposes by activating an input layer with spectrum powers taken on special frequencies (1/4, 1/3, 1/2, 2/3, 3/4, 1, 3/2, 2, 3, 4) relative to greatest peak.\n\nSo the result frequency divided by its harmonic order is used for estimation position of a note on the scale with selected pitch and tuning.\nThis position is showed on display by `TuningView` and `FineTuningView`.\n\nAlso `Processing` allows to take preview data with standing wave effect by phase shifting with value of a greatest frequency peak. This wave is showed by `SKView` and `TubeScene`.\n\n![Screenshots][uml-image]\n\n## License\n\n  [MIT](LICENSE)\n\n[travis-image]: https://img.shields.io/travis/kreshikhin/scituner/master.svg\n[travis-url]: https://travis-ci.org/kreshikhin/scituner\n\n[license-image]: https://img.shields.io/badge/License-MIT-yellow.svg\n[license-url]: https://opensource.org/licenses/MIT\n\n[platform-image]: https://img.shields.io/badge/platform-ios-lightgrey.svg?style=flat\n[platform-url]: http://github.com/kreshikhin/scituner\n\n[appstore-image]: https://github.com/kreshikhin/scituner/blob/master/Docs/appstore.png\n[screenshots-image]: https://github.com/kreshikhin/scituner/blob/master/Docs/screenshots_small.png\n[uml-image]: https://github.com/kreshikhin/scituner/blob/master/Docs/uml.png\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkreshikhin%2Fscituner","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkreshikhin%2Fscituner","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkreshikhin%2Fscituner/lists"}