mirror of
https://github.com/google/bumble.git
synced 2026-04-29 02:34:49 +00:00
1381 lines
30 KiB
HTML
1381 lines
30 KiB
HTML
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<!doctype html>
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<html lang="en" class="no-js">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<link rel="icon" href="../images/favicon.ico">
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<meta name="generator" content="mkdocs-1.3.1, mkdocs-material-8.4.0">
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<title>Speaker - Bumble</title>
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<link rel="stylesheet" href="../assets/stylesheets/main.69437709.min.css">
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<link rel="stylesheet" href="../assets/stylesheets/palette.cbb835fc.min.css">
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
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<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CRoboto+Mono:400,400i,700,700i&display=fallback">
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<style>:root{--md-text-font:"Roboto";--md-code-font:"Roboto Mono"}</style>
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<link rel="stylesheet" href="../assets/_mkdocstrings.css">
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<script>__md_scope=new URL("..",location),__md_hash=e=>[...e].reduce((e,_)=>(e<<5)-e+_.charCodeAt(0),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
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</head>
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<body dir="ltr" data-md-color-scheme="" data-md-color-primary="none" data-md-color-accent="none">
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<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
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<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
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<label class="md-overlay" for="__drawer"></label>
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<div data-md-component="skip">
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<a href="#speaker-app" class="md-skip">
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Skip to content
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</a>
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</div>
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<div data-md-component="announce">
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</div>
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<header class="md-header" data-md-component="header">
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<nav class="md-header__inner md-grid" aria-label="Header">
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<a href="../index.html" title="Bumble" class="md-header__button md-logo" aria-label="Bumble" data-md-component="logo">
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<img src="../images/logo.png" alt="logo">
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</a>
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<label class="md-header__button md-icon" for="__drawer">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2Z"/></svg>
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</label>
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<div class="md-header__title" data-md-component="header-title">
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<div class="md-header__ellipsis">
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<div class="md-header__topic">
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<span class="md-ellipsis">
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Bumble
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</span>
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</div>
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<div class="md-header__topic" data-md-component="header-topic">
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<span class="md-ellipsis">
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Speaker
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</span>
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</div>
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</div>
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</div>
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<div class="md-header__source">
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<a href="https://github.com/google/bumble" title="Go to repository" class="md-source" data-md-component="source">
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<div class="md-source__icon md-icon">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.1.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81z"/></svg>
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</div>
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<div class="md-source__repository">
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GitHub
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</div>
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</a>
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</div>
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</nav>
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</header>
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<div class="md-container" data-md-component="container">
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<main class="md-main" data-md-component="main">
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<div class="md-main__inner md-grid">
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<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
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<div class="md-sidebar__scrollwrap">
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<div class="md-sidebar__inner">
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<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
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<label class="md-nav__title" for="__drawer">
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<a href="../index.html" title="Bumble" class="md-nav__button md-logo" aria-label="Bumble" data-md-component="logo">
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<img src="../images/logo.png" alt="logo">
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</a>
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Bumble
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</label>
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<div class="md-nav__source">
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<a href="https://github.com/google/bumble" title="Go to repository" class="md-source" data-md-component="source">
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<div class="md-source__icon md-icon">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.1.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2022 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81z"/></svg>
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</div>
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<div class="md-source__repository">
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GitHub
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</div>
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</a>
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</div>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../index.html" class="md-nav__link">
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Introduction
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../getting_started.html" class="md-nav__link">
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Getting Started
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</a>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_3" type="checkbox" id="__nav_3" >
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<label class="md-nav__link" for="__nav_3">
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Development
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" aria-label="Development" data-md-level="1">
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<label class="md-nav__title" for="__nav_3">
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<span class="md-nav__icon md-icon"></span>
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Development
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../development/python_environments.html" class="md-nav__link">
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Python Environments
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../development/contributing.html" class="md-nav__link">
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Contributing
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../development/code_style.html" class="md-nav__link">
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Code Style
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_4" type="checkbox" id="__nav_4" >
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<label class="md-nav__link" for="__nav_4">
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Use Cases
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" aria-label="Use Cases" data-md-level="1">
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<label class="md-nav__title" for="__nav_4">
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<span class="md-nav__icon md-icon"></span>
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Use Cases
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../use_cases/index.html" class="md-nav__link">
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Overview
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../use_cases/use_case_1.html" class="md-nav__link">
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Use Case 1
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../use_cases/use_case_2.html" class="md-nav__link">
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Use Case 2
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../use_cases/use_case_3.html" class="md-nav__link">
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Use Case 3
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../use_cases/use_case_4.html" class="md-nav__link">
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Use Case 4
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../use_cases/use_case_5.html" class="md-nav__link">
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Use Case 5
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../use_cases/use_case_6.html" class="md-nav__link">
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Use Case 6
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_5" type="checkbox" id="__nav_5" >
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<label class="md-nav__link" for="__nav_5">
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Components
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" aria-label="Components" data-md-level="1">
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<label class="md-nav__title" for="__nav_5">
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<span class="md-nav__icon md-icon"></span>
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Components
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../components/controller.html" class="md-nav__link">
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Controller
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../components/host.html" class="md-nav__link">
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Host
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../components/gatt.html" class="md-nav__link">
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GATT
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../components/security_manager.html" class="md-nav__link">
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Security Manager
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--nested">
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<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_6" type="checkbox" id="__nav_6" >
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<label class="md-nav__link" for="__nav_6">
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Transports
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" aria-label="Transports" data-md-level="1">
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<label class="md-nav__title" for="__nav_6">
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<span class="md-nav__icon md-icon"></span>
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Transports
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../transports/index.html" class="md-nav__link">
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Overview
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../transports/serial.html" class="md-nav__link">
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Serial
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../transports/usb.html" class="md-nav__link">
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USB
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../transports/pty.html" class="md-nav__link">
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PTY
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../transports/udp.html" class="md-nav__link">
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UDP
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../transports/tcp_client.html" class="md-nav__link">
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TCP Client
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../transports/tcp_server.html" class="md-nav__link">
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TCP Server
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../transports/ws_client.html" class="md-nav__link">
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WebSocket Client
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../transports/ws_server.html" class="md-nav__link">
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WebSocket Server
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</a>
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</li>
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<li class="md-nav__item">
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<h1 id="speaker-app">SPEAKER APP<a class="headerlink" href="#speaker-app" title="Permanent link">¶</a></h1>
|
|
<p><img alt="logo" height="320" src="../images/speaker_screenshot.png" width="400" /></p>
|
|
<p>The Speaker app is virtual Bluetooth speaker (A2DP sink).
|
|
The app runs as a command-line executable, but also offers an optional simple
|
|
web-browser-based user interface.</p>
|
|
<h1 id="general-usage">General Usage<a class="headerlink" href="#general-usage" title="Permanent link">¶</a></h1>
|
|
<p>You can invoke the app either as <code>bumble-speaker</code> when installed as command
|
|
from <code>pip</code>, or <code>python3 apps/speaker/speaker.py</code> when running from a source
|
|
distribution.</p>
|
|
<div class="highlight"><pre><span></span><code>Usage: speaker.py [OPTIONS] TRANSPORT
|
|
|
|
Run the speaker.
|
|
|
|
Options:
|
|
--codec [sbc|aac] [default: aac]
|
|
--discover Discover remote endpoints once connected
|
|
--output NAME Send audio to this named output (may be used more
|
|
than once for multiple outputs)
|
|
--ui-port HTTP_PORT HTTP port for the UI server [default: 7654]
|
|
--connect ADDRESS_OR_NAME Address or name to connect to
|
|
--device-config FILENAME Device configuration file
|
|
--help Show this message and exit.
|
|
</code></pre></div>
|
|
<h1 id="connection">Connection<a class="headerlink" href="#connection" title="Permanent link">¶</a></h1>
|
|
<p>By default, the virtual speaker will wait for another device (like a phone or
|
|
computer) to connect to it (and possibly pair). Alternatively, the speaker can
|
|
be told to initiate a connection to a remote device, using the <code>--connect</code>
|
|
option.</p>
|
|
<h1 id="outputs">Outputs<a class="headerlink" href="#outputs" title="Permanent link">¶</a></h1>
|
|
<p>The speaker can have one or more outputs. By default, the only output is a text
|
|
display on the console, as well as a browser-based user interface if connected.
|
|
In addition, a file output can be used, in which case the received audio data is
|
|
saved to a specified file.
|
|
Finally, if the host computer on which your are running the application has <code>ffplay</code>
|
|
as an available command line executable, the <code>@ffplay</code> output can be selected, in
|
|
which case the received audio will be played on the computer's builtin speakers via
|
|
a pipe to <code>ffplay</code>. (see the <a href="https://www.ffmpeg.org/ffplay.html">ffplay documentation</a>
|
|
for details)</p>
|
|
<h1 id="web-user-interface">Web User Interface<a class="headerlink" href="#web-user-interface" title="Permanent link">¶</a></h1>
|
|
<p>When the speaker app starts, it prints out on the console the local URL at which you
|
|
may point a browser (Chrome recommended for full functionality). The console line
|
|
specifying the local UI URL will look like:
|
|
<div class="highlight"><pre><span></span><code>UI HTTP server at http://127.0.0.1:7654
|
|
</code></pre></div></p>
|
|
<p>By default, the web UI will show the status of the connection, as well as a realtime
|
|
graph of the received audio bandwidth.
|
|
In order to also hear the received audio, you need to click the <code>Audio on</code> button
|
|
(this is due to the fact that most browsers will require some user interface with the
|
|
page before granting access to the audio output APIs).</p>
|
|
<h1 id="examples">Examples<a class="headerlink" href="#examples" title="Permanent link">¶</a></h1>
|
|
<p>In the following examples, we use a single USB Bluetooth controllers <code>usb:0</code>. Other
|
|
transports can be used of course.</p>
|
|
<div class="admonition example">
|
|
<p class="admonition-title">Start the speaker and wait for a connection</p>
|
|
<div class="highlight"><pre><span></span><code>$ bumble-speaker usb:0
|
|
</code></pre></div>
|
|
</div>
|
|
<div class="admonition example">
|
|
<p class="admonition-title">Start the speaker and save the AAC audio to a file named <code>audio.aac</code>.</p>
|
|
<div class="highlight"><pre><span></span><code>$ bumble-speaker --output audio.aac usb:0
|
|
</code></pre></div>
|
|
</div>
|
|
<div class="admonition example">
|
|
<p class="admonition-title">Start the speaker and save the SBC audio to a file named <code>audio.sbc</code>.</p>
|
|
<div class="highlight"><pre><span></span><code>$ bumble-speaker --codec sbc --output audio.sbc usb:0
|
|
</code></pre></div>
|
|
</div>
|
|
<div class="admonition example">
|
|
<p class="admonition-title">Start the speaker and connect it to a phone at address <code>B8:7B:C5:05:57:ED</code>.</p>
|
|
<div class="highlight"><pre><span></span><code>$ bumble-speaker --connect B8:7B:C5:05:57:ED usb:0
|
|
</code></pre></div>
|
|
</div>
|
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