{"id":36589,"date":"2019-10-31T22:12:30","date_gmt":"2019-10-31T19:12:30","guid":{"rendered":"https:\/\/prohoster.info\/blog\/kak-napisat-muzyku-ispolzuya-oop\/"},"modified":"2019-10-31T22:12:30","modified_gmt":"2019-10-31T19:12:30","slug":"kak-napisat-muzyku-ispolzuya-oop","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/kak-napisat-muzyku-ispolzuya-oop","title":{"rendered":"Come scrivere musica utilizzando OOP","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Parliamo della storia dello strumento software OpenMusic (OM), analizziamo le caratteristiche della sua struttura e raccontiamo dei primi utenti. Inoltre, portiamo degli analoghi.<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/audiomania\/blog\/461403\/\"><img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/03527608aa7542c035cfe9897deaa5d0.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<i>Foto <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/photos\/J6WmcJrvlLI\"> James Baldwin<\/a><\/noindex> \/ Unsplash<\/i><\/p>\n<h2>Cosa \u00e8 OpenMusic<\/h2>\n<p>\n\u00c8 un ambiente <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%92%D0%B8%D0%B7%D1%83%D0%B0%D0%BB%D1%8C%D0%BD%D0%BE%D0%B5_%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5\">visivo di programmazione<\/a><\/noindex> per la sintesi del suono digitale. L'utilit\u00e0 si basa su un dialetto del linguaggio LISP \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/Common_Lisp\">Common Lisp<\/a><\/noindex>. Va notato che OpenMusic pu\u00f2 essere utilizzato come interfaccia grafica universale per questo linguaggio di programmazione.<\/p>\n<p>Lo strumento \u00e8 stato sviluppato negli anni '90 da ingegneri dell'Istituto francese per la ricerca e la coordinazione nell'acustica e nella musica (<noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/IRCAM\">IRCAM<\/a><\/noindex>). Sono state presentate in totale sette versioni di OpenMusic, l'ultima delle quali \u00e8 stata rilasciata nel 2013. Allora, l'ingegnere dell'IRCAM Jean Bresson (<noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/j-bresson\">Jean Bresson<\/a><\/noindex>) ha riscritto l'utilit\u00e0 da zero, prendendo come <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/openmusic-project\/OM6\/\">base il codice originale<\/a><\/noindex> della sesta versione (OM6). Oggi OM7 \u00e8 distribuito sotto licenza <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/GNU_General_Public_License#GPL_v3\">GPLv3<\/a><\/noindex> \u2014 il suo codice sorgente pu\u00f2 <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/openmusic-project\/om7\">essere trovato su GitHub<\/a><\/noindex>.<\/p>\n<h2>Come lavorare con essa<\/h2>\n<p>\nI programmi in OpenMusic si creano manipolando oggetti grafici anzich\u00e9 scrivendo codice. Di conseguenza, si ottiene una sorta di diagramma di flusso, che si chiama \"patch\". Analogamente ai sintentizzatori modulari, in cui per le connessioni si utilizzavano cavi patch.<\/p>\n<p>Ecco <noindex><a rel=\"nofollow\" href=\"https:\/\/openmusic-project.github.io\/om7\/\">un esempio di programma<\/a><\/noindex> OpenMusic, preso dal repository su GitHub:<\/p>\n<p><img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/6785fe87af24c7509172239adc6b2d09.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nIn OpenMusic ci sono oggetti di due tipi: di base e di partitura (Score Object). I primi rappresentano varie operazioni matematiche per lavorare con matrici, colonne e forme testuali.<\/p>\n<p>Gli oggetti di partitura sono necessari per lavorare con il suono. Possono anche essere suddivisi in due gruppi:<\/p>\n<ul>\n<li>Armonici \u2014 note, accordi e <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%90%D0%BA%D0%BA%D0%BE%D1%80%D0%B4%D0%BE%D0%B2%D0%B0%D1%8F_%D0%BF%D0%BE%D1%81%D0%BB%D0%B5%D0%B4%D0%BE%D0%B2%D0%B0%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D1%81%D1%82%D1%8C\">sequenze armoniche<\/a><\/noindex>.<\/li>\n<li>Ritmici \u2014 voci e misure.<\/li>\n<\/ul>\n<p>\nGli oggetti di partitura vengono gestiti mediante funzioni di partitura, ad esempio che uniscono pi\u00f9 componenti in uno per creare suoni polifonici. Funzioni aggiuntive possono essere trovate nelle librerie collegate \u2014 il loro elenco completo <noindex><a rel=\"nofollow\" href=\"https:\/\/openmusic-project.github.io\/om7\/\">\u00e8 disponibile sul sito ufficiale<\/a><\/noindex>.<\/p>\n<p>Un esempio di melodia generata da OpenMusic pu\u00f2 essere ascoltato <noindex><a rel=\"nofollow\" href=\"https:\/\/www.youtube.com\/watch?v=YA0azFm29ts\">in questo video<\/a><\/noindex>:<\/p>\n<p><center><div class=\"youtube-placeholder\" data-id=\"YA0azFm29ts\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/YA0azFm29ts\/hqdefault.jpg\" alt=\"Guarda il video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><br \/>\nPer familiarizzare con lo strumento e le sue possibilit\u00e0, si consiglia di consultare la documentazione. <noindex><a rel=\"nofollow\" href=\"https:\/\/openmusic-project.github.io\/om7\/\">Il manuale per OM7<\/a><\/noindex> \u00e8 ancora in fase di sviluppo. Ma \u00e8 possibile consultare il manuale per OM6 \u2014 bisogna <noindex><a rel=\"nofollow\" href=\"http:\/\/support.ircam.fr\/docs\/om\/om6-manual\/co\/OM-Documentation.html\">seguire il link<\/a><\/noindex> e nella finestra a sinistra espandere la voce Manuale Utente.<\/p>\n<h2>Chi lo usa<\/h2>\n<p>\nSecondo l'idea degli sviluppatori, OpenMusic pu\u00f2 essere utilizzato per creare e modificare tracce audio, generare modelli matematici di opere e analizzare frammenti musicali registrati. Gli ingegneri di ITCAM hanno utilizzato lo strumento in diverse ricerche scientifiche. Ad esempio, per <noindex><a rel=\"nofollow\" href=\"https:\/\/hal.archives-ouvertes.fr\/hal-01839050\/document\">creazione<\/a><\/noindex> un sistema di intelligenza artificiale che riconosce <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Musical_gesture\">i gesti musicali<\/a><\/noindex> sulle registrazioni audio.<\/p>\n<p>Professionisti del settore lavorano con OpenMusic: lo usano per studiare gli spettri armonici. Un esempio \u00e8 il compositore svizzero <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%96%D0%B0%D1%80%D1%80%D0%B5%D0%BB%D1%8C,_%D0%9C%D0%B8%D0%BA%D0%B0%D1%8D%D0%BB%D1%8C\">Mika\u00ebl Jarrell<\/a><\/noindex>, che \u00e8 vincitore del premio Beethoven. Le sue opere eseguite dall'Orchestra Sinfonica di Hong Kong possono essere <noindex><a rel=\"nofollow\" href=\"https:\/\/www.youtube.com\/watch?v=2by3aXXd6Pg\">ascoltate qui<\/a><\/noindex>.<\/p>\n<p>\u00c8 importante evidenziare anche <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9C%D1%8E%D1%80%D0%B0%D0%B9,_%D0%A2%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%BD\">Tristan Murail<\/a><\/noindex>. \u00c8 uno dei pi\u00f9 importanti compositori attivi nel campo della <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A1%D0%BF%D0%B5%D0%BA%D1%82%D1%80%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F_%D0%BC%D1%83%D0%B7%D1%8B%D0%BA%D0%B0\">musica spettrale<\/a><\/noindex>. Ad esempio, su YouTube si possono trovare le sue opere <noindex><a rel=\"nofollow\" href=\"https:\/\/www.youtube.com\/watch?v=q6WXzOIsBuQ\">Gondwana<\/a><\/noindex> e <noindex><a rel=\"nofollow\" href=\"https:\/\/www.youtube.com\/watch?v=Oo_RyHTnERU\">Le partage des eaux<\/a><\/noindex>, create utilizzando OpenMusic.<\/p>\n<p><center><div class=\"youtube-placeholder\" data-id=\"Oo_RyHTnERU\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/Oo_RyHTnERU\/hqdefault.jpg\" alt=\"Guarda il video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><br \/>\nIl compositore e pedagogista inglese <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A4%D1%91%D1%80%D0%BD%D0%B8%D1%85%D0%BE%D1%83,_%D0%91%D1%80%D0%B0%D0%B9%D0%B0%D0%BD\">Bryan Fernyhough<\/a><\/noindex> ha utilizzato OpenMusic per lavorare sul ritmo. Oggi la sua musica \u00e8 parte del repertorio dei maggiori ensemble e interpreti contemporanei \u2014 <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%9A%D0%B2%D0%B0%D1%80%D1%82%D0%B5%D1%82_%D0%90%D1%80%D0%B4%D0%B8%D1%82%D1%82%D0%B8\">Quartetto Arditti<\/a><\/noindex> e <noindex><a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%90%D1%80%D1%82%D0%BE,_%D0%9F%D1%8C%D0%B5%D1%80_%D0%98%D0%B2\">Pierre-Yves Arto<\/a><\/noindex>.<\/p>\n<h2>Analoghi<\/h2>\n<p>\nEsistono diversi sistemi simili a OpenMusic. Probabilmente il pi\u00f9 conosciuto \u00e8 lo strumento commerciale <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Max\/MSP\">Max\/MSP<\/a><\/noindex>, sviluppato da Miller Puckette alla fine degli anni '80, quando lavorava all'IRCAM. Il sistema consente di sintetizzare audio digitale e video in tempo reale.<\/p>\n<p>Nel video sottostante \u00e8 presentata un'installazione su uno degli edifici della citt\u00e0 italiana di Cagliari. I colori degli schermi cambiano in base al rumore delle auto in transito. L'installazione \u00e8 controllata tramite un collegamento tra Max\/MSP e Arduino.<\/p>\n<p><center><iframe loading=\"lazy\" title=\"Tlight\" width=\"560\" height=\"315\" src=\"https:\/\/player.vimeo.com\/video\/14085912\" frameborder=\"0\" allowfullscreen><\/iframe><\/center><br \/>\n\u00c8 importante notare che Max\/MSP ha un analogo a codice aperto. Si chiama <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Pure_Data\">Pure Data<\/a><\/noindex>, e anche questo \u00e8 stato sviluppato da Miller Puckette.<\/p>\n<p>Merita menzione anche il sistema visivo <noindex><a rel=\"nofollow\" href=\"http:\/\/chuck.cs.princeton.edu\/\">ChucK<\/a><\/noindex>, inventato da Perry Cook con collaboratori dell'Universit\u00e0 di Princeton nel 2003. Supporta l'esecuzione parallela di pi\u00f9 flussi e consente modifiche al programma anche durante l'esecuzione. \u00c8 distribuito con licenza GNU GPL.<\/p>\n<p>Questa non \u00e8 la fine della lista degli strumenti per la sintesi della musica digitale. C'\u00e8 anche <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Kyma_(sound_design_language)\">Kyma<\/a><\/noindex> e <noindex><a rel=\"nofollow\" href=\"http:\/\/overtone.github.io\/\">Overtone<\/a><\/noindex>, che consente di programmare mix direttamente sul palco. Ci impegneremo a parlarne la prossima volta.<\/p>\n<p>\nLettura aggiuntiva \u2014 dal nostro \u00abMondo Hi-Fi\u00bb e canale Telegram:<\/p>\n<p><img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/8913ea49c2bffe44416da575d424b9d7.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/audiomania\/blog\/461299\/\">Come il PC ha conquistato l'industria dei media grazie a software di successo<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/cbc3b067a966ee35edcae6676ffa0a24.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.audiomania.ru\/content\/art-6670.html\">Dove trovare campioni audio per i tuoi progetti: selezione di nove risorse<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/80d4d2bc14016e8226ce9f7122bdfd0e.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.audiomania.ru\/content\/art-6638.html\">Musica per i tuoi progetti: 12 risorse tematiche con tracce in licenza CC<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/690399c643a5185387f4dfb44b6ab105.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.audiomania.ru\/content\/art-6637.html\">Innovation SSI-2001: la storia di una delle schede audio pi\u00f9 rare per IBM PC<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/8f4e30a5e6719881ef1b97afdc73892d.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.audiomania.ru\/content\/art-6552.html\">Storia delle tecnologie audio: sintetizzatori e campionatori<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/1048b69feecb5ac7b66677e7a0df7cb8.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.audiomania.ru\/content\/art-6499.html\">Un appassionato ha ricreato la scheda audio Sound Blaster 1.0<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/f2e6b9bd357392ee45c9e996a6c2224a.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/audiomaniaRU\/783\">Come sono cambiati i formati musicali negli ultimi 100 anni<\/a><\/noindex><br \/>\n<img decoding=\"async\" alt=\"Come scrivere musica utilizzando OOP\" src=\"\/wp-content\/uploads\/2019\/07\/1170b74cd464d1b6138511dafe6118dc.jpg\" style=\"display:block;margin: 0 auto;\" \/> <noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/audiomaniaRU\/773\">Come un'azienda IT ha combattuto per il diritto di vendere musica<\/a><\/noindex><\/p>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/audiomania\/blog\/461403\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0413\u043e\u0432\u043e\u0440\u0438\u043c \u043e\u0431 \u0438\u0441\u0442\u043e\u0440\u0438\u0438 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430 OpenMusic (OM), \u0440\u0430\u0437\u0431\u0438\u0440\u0430\u0435\u043c \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u0435\u0433\u043e \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430, \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u043c \u043e \u043f\u0435\u0440\u0432\u044b\u0445 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f\u0445. \u041f\u043b\u044e\u0441 \u043a \u044d\u0442\u043e\u043c\u0443 \u2014 \u043f\u0440\u0438\u0432\u043e\u0434\u0438\u043c \u0430\u043d\u0430\u043b\u043e\u0433\u0438. \u0424\u043e\u0442\u043e James Baldwin \/ Unsplash \u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 OpenMusic \u042d\u0442\u043e \u2014 \u043e\u0431\u044a\u0435\u043a\u0442\u043d\u043e-\u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u0432\u0438\u0437\u0443\u0430\u043b\u044c\u043d\u0430\u044f \u0441\u0440\u0435\u0434\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u043b\u044f \u0441\u0438\u043d\u0442\u0435\u0437\u0430 \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0433\u043e \u0437\u0432\u0443\u043a\u0430. \u0423\u0442\u0438\u043b\u0438\u0442\u0430 \u043e\u0441\u043d\u043e\u0432\u0430\u043d\u0430 \u043d\u0430 \u0434\u0438\u0430\u043b\u0435\u043a\u0442\u0435 \u044f\u0437\u044b\u043a\u0430 LISP \u2014 Common Lisp. \u0421\u0442\u043e\u0438\u0442 \u043e\u0442\u043c\u0435\u0442\u0438\u0442\u044c, \u0447\u0442\u043e OpenMusic \u043c\u043e\u0436\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0432 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":27396,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-36589","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0413\u043e\u0432\u043e\u0440\u0438\u043c \u043e\u0431 \u0438\u0441\u0442\u043e\u0440\u0438\u0438 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