{"id":2210542,"date":"2025-12-03T14:37:21","date_gmt":"2025-12-03T13:37:21","guid":{"rendered":"https:\/\/twelve-assistant.com\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/compatibility\/"},"modified":"2025-12-03T14:37:46","modified_gmt":"2025-12-03T13:37:46","slug":"compatibility","status":"publish","type":"page","link":"https:\/\/twelve-assistant.com\/en\/twelve-assistant-v2-presentation-guitar-harmony-assistant\/compatibility\/","title":{"rendered":"Compatibility"},"content":{"rendered":"\n

Last update: August 10, 2025<\/p>\n\n

\n

Twelve-Assistant is a Single Page Application (SPA).<\/strong> In concrete terms, the application is deployed on a web server<\/strong> and can beused in a modern browser<\/strong>, without installation. Updates are automatic<\/strong> (loaded the next time the page is refreshed) and your data is stored remotely<\/strong> on the server. An Internet connection<\/strong> is therefore required.<\/p>\n\n\n\n

Most functions (navigation, display, analysis tools) work with any recent browser. For audio playback and synchronization<\/strong> (metronome, sequencing, pre-listening), the application relies on Web Audio technologies<\/strong>. Some older or specific browsers may have limitations: please refer to the tables below.<\/p>\n\n\n\n

Browsers<\/th>Main problems (Web Audio \/ platform)<\/th><\/tr><\/thead>
Internet Explorer (all versions)<\/td>\u274c No Web Audio API<\/strong> – \u274c NoAudioContext<\/strong> – \u274c Modern JavaScript incompatibilities (ES6+).<\/td><\/tr>
Safari < 14.1 (iOS < 14.5)<\/td>\u274c Requires webkitAudioContext<\/code> (no standard API) – \u274c Audio transport\/clock malfunctions – \u274c Very strictautoplay<\/strong> rules.<\/td><\/tr>
Chrome < 66 (Android < 7)<\/td>\u274c AudioContext.resume()<\/code> not supported – \u274c Restrictive autoplay policy impacting audio startup.<\/td><\/tr>
Firefox < 61<\/td>\u274c AudioContext<\/strong> unstable – \u274c Audio clock synchronization problems.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Browsers<\/th>Known limitations<\/th><\/tr><\/thead>
Safari iOS (all versions)<\/td>\u26a0\ufe0f Audio startup only after user interaction<\/strong> (tap\/click) – \u26a0\ufe0f Limit on simultaneousAudioContext<\/strong> instances (\u2248 6) – \u26a0\ufe0f High latency<\/strong> (~50-100 ms) – \u26a0\ufe0f More memory-constrained audio buffers<\/strong>.<\/td><\/tr>
Chrome Mobile < 100<\/td>\u26a0\ufe0f Latency varies according to device – \u26a0\ufe0f AudioContext<\/strong> suspended by default (requires a gesture) – \u26a0\ufe0f Higher battery consumption during long sequencing.<\/td><\/tr>
Edge Legacy (< 79)<\/td>\u26a0\ufe0f Incomplete Web Audio implementation – \u26a0\ufe0f Possible problems with look-ahead<\/em> \/ audio sequencer pre-read.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Platform<\/th>Recommended versions<\/th><\/tr><\/thead>
Desktop<\/strong><\/td>Chrome\/Edge 100+<\/strong> – Firefox 100+<\/strong> – Safari 15+<\/strong> – Chrome \/ Edge 100+<\/strong> – Firefox 100+<\/strong> – Safari 15+<\/strong> – Safari 15+<\/strong>.<\/td><\/tr>
Mobile<\/strong><\/td>Chrome Android 110+<\/strong> – Safari iOS 15+<\/strong> (with above limits) – Samsung Internet 19+ (<\/strong>with above limits)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Critical Web features used<\/h2>\n\n\n\n
    \n
  • Web Audio API<\/strong>: audio generation, mixing and scheduling.<\/li>\n\n\n\n
  • AudioContext \/ webkitAudioContext<\/strong>: context creation and state management (suspended\/resumed).<\/li>\n\n\n\n
  • Transport\/planning clock<\/strong>: precise time sequencing (tempo, steps, measures).<\/li>\n\n\n\n
  • AudioBuffer<\/strong>: sample loading and playback.<\/li>\n\n\n\n
  • ES6+ (modules, async\/await)<\/strong>: resource loading and asynchronous logic.<\/li>\n<\/ul>\n\n\n\n

    Note<\/strong>: If your environment does not meet the above prerequisites, the application remains accessible for non-audio viewing and editing. However, sound-related functions can be limited or disabled.<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

    Last update: August 10, 2025 Twelve-Assistant is a Single Page Application (SPA). In concrete terms, the application is deployed on a web server and can beused in a modern browser, without installation. Updates are automatic (loaded the next time the page is refreshed) and your data is stored remotely on the server. 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