http://pollochang.work/tags/workflow/ Recent content in Workflow on PolloChang 工作筆記 Hugo -- gohugo.io zh-TW © 2026 PolloChang Tue, 13 Oct 2026 07:50:53 +0800 http://pollochang.work/worknot/convert-mp3-to-text-workflow/ Tue, 13 Oct 2026 07:50:53 +0800 http://pollochang.work/worknot/convert-mp3-to-text-workflow/ <h2 class="relative group">原始人工流程 <div id="原始人工流程" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e5%8e%9f%e5%a7%8b%e4%ba%ba%e5%b7%a5%e6%b5%81%e7%a8%8b" aria-label="定位點">#</a> </span> </h2> <ol> <li>影片轉 mp3</li> </ol> <div class="highlight-wrapper"><div class="highlight"><div style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"> <table style="border-spacing:0;padding:0;margin:0;border:0;"><tr><td style="vertical-align:top;padding:0;margin:0;border:0;"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1 </span></code></pre></td> <td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>ffmpeg -i test.mp4 -vn -c:a libmp3lame -q:a <span style="color:#ae81ff">0</span> test.mp3</span></span></code></pre></td></tr></table> </div> </div></div> <ol start="2"> <li>移除停頓中的空隙</li> </ol> <div class="highlight-wrapper"><div class="highlight"><div style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"> <table style="border-spacing:0;padding:0;margin:0;border:0;"><tr><td style="vertical-align:top;padding:0;margin:0;border:0;"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1 </span></code></pre></td> <td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>ffmpeg -i test.mp3 -af <span style="color:#e6db74">&#34;silenceremove=stop_periods=-1:stop_duration=0.5:stop_threshold=-40dB&#34;</span> test.v0.2.mp3</span></span></code></pre></td></tr></table> </div> </div></div> <ol start="3"> <li>雙聲道單聲道</li> </ol> <div class="highlight-wrapper"><div class="highlight"><div style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"> <table style="border-spacing:0;padding:0;margin:0;border:0;"><tr><td style="vertical-align:top;padding:0;margin:0;border:0;"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code><span style="white-space:pre;-webkit-user-select:none;user-select:none;margin-right:0.4em;padding:0 0.4em 0 0.4em;color:#7f7f7f">1 </span></code></pre></td> <td style="vertical-align:top;padding:0;margin:0;border:0;;width:100%"> <pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-bash" data-lang="bash"><span style="display:flex;"><span>ffmpeg -i test.v0.1.mp3 -ac <span style="color:#ae81ff">1</span> -ar <span style="color:#ae81ff">16000</span> test.v0.2.mp3</span></span></code></pre></td></tr></table> </div> </div></div> <hr> <h2 class="relative group">AI 建議 <div id="ai-建議" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#ai-%e5%bb%ba%e8%ad%b0" aria-label="定位點">#</a> </span> </h2> <p>這三個步驟可以直接整合成一行指令，一次完成提取音訊、去除靜音、降為單聲道以及調整取樣率，避免多次編碼造成音質反覆失真與浪費時間。</p>