Desenhador de formas de onda de métricas de áudio
Conclua um desenhista de formas de onda no cenário de métricas de áudio: inclua conteúdo realista, controles acionáveis, feedback de estado claro e um layout responsivo em diferentes tamanhos.
É possível editar, executar e salvar este exemplo após ativar JavaScript. O código-fonte fixo é o seguinte:
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<header class="mast"><div><span class="eyebrow">magazine / criador de formas de onda / ADVANCED</span><h1>Desenhador de formas de onda de métricas de áudio</h1><p class="intro">Conclua um desenhista de formas de onda no cenário de métricas de áudio: inclua conteúdo realista, controles acionáveis, feedback de estado claro e um layout responsivo em diferentes tamanhos.</p></div><span class="scenario">Métricas de áudio</span></header>
<div class="composition-studio"><div class="studio-ruler" aria-hidden="true"></div><section class="demo" aria-label="Área interativa do desenhador de forma de onda de métricas de áudio"><div class="workflow-guide"><nav class="guide-rail" aria-label="Guia de métricas de áudio"><span class="eyebrow">Métricas de áudio GUIDE</span><ol><li data-workflow-guide-step="0" aria-current="step"><b>1</b><span>Visão atual das métricas de áudio</span></li><li data-workflow-guide-step="1"><b>2</b><span>Visão comparativa de métricas de áudio</span></li><li data-workflow-guide-step="2"><b>3</b><span>Visão resumida das métricas de áudio</span></li></ol><div class="guide-actions"><button id="workflowGuideBack" class="action" type="button" disabled>Etapa anterior</button><button id="workflowGuideNext" class="action primary" type="button">Concluir esta etapa</button></div><div id="workflowGuideProgress" role="progressbar" aria-label="Concluída de métricas de áudio" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div></nav><section id="workflowCore" class="workflow-core guide-core" data-guide-step="0" aria-describedby="workflowGuideInstruction"><p id="workflowGuideInstruction">Conclua as operações relacionadas à “visão atual de métricas de áudio” no caso principal.</p><!-- 11DZ_CORE_START:drawing-data-viz-waveform --><div class="drawing-pattern drawing-pattern-9"><div class="canvas-shell"><canvas id="artboard" width="900" height="440" aria-label="Canvas do criador de formas de onda" aria-describedby="canvasDescription"></canvas><div class="canvas-tools panel"><span class="eyebrow">CANVAS MODE 10</span><h2>Desenhador de formas de onda</h2><label>Complexidade <input id="canvasAmount" type="range" min="4" max="28" value="37"></label><button id="redrawCanvas" class="action primary" type="button">Redesenhar</button><p id="canvasDescription" class="muted">Em uma tela escura, um desenhador de formas de onda é renderizado com duas cores de alto contraste, e o controle deslizante de complexidade determina o número de formas; a imagem é gerada inteiramente localmente no navegador.</p></div></div><section class="drawing-controller waveform-controller"><header><span class="eyebrow">SIGNAL DESK</span><h3>Sinal em forma de onda dos indicadores de áudio</h3></header><label>ganho de entrada<input id="waveformGain" type="range" min="20" max="180" value="100" data-core-bridge="drawing-data-viz-waveform"><output id="waveformGainValue">1.00×</output></label><label>Janela de observação<select id="waveformWindow"><option value="short">Janela curta</option><option value="medium" selected>Janela central</option><option value="long">Janela longa</option></select></label><button id="waveformFreeze" class="action" type="button" aria-pressed="false">Forma de onda congelada</button><output id="waveformReadout">Fluxo do sinal</output></section></div><!-- 11DZ_CORE_END --></section><aside class="guide-evidence"><details id="workflowGuideDetails"><summary>Ver requisitos de aceitação</summary><ul><li>A visualização atual das métricas de áudio precisa de uma mudança de estado visível</li><li>A visão comparativa das métricas de áudio requer uma mudança de estado visível</li><li>A visualização de resumo de métricas de áudio requer uma alteração de estado visível uma vez</li></ul></details><form id="workflowGuideEvidenceForm"><label>Evidência desta etapa<textarea id="workflowGuideEvidence" rows="3" placeholder="Registrar o estado observado"></textarea></label><input class="action" type="submit" value="Salvar evidência"></form><output id="workflowGuideSummary">0 / 3 passos concluídos</output></aside></div><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
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