sea-codec 0.5.3

Low-complexity, lossy audio codec designed for embedded devices
Documentation 
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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Sea Audio Converter</title>
    <style>
      body {
        font-family: Arial, sans-serif;
        margin: 20px;
      }
      a {
        color: #0000ff;
      }
      .container {
        display: flex;
        gap: 20px;
      }
      .column {
        flex: 1;
        border: 1px solid #ccc;
        padding: 20px;
        border-radius: 8px;
      }
      .file-drop {
        border: 2px dashed #ccc;
        padding: 20px;
        text-align: center;
        margin-bottom: 20px;
        cursor: pointer;
      }
      .file-drop.dragover {
        border-color: #000;
      }
      audio {
        width: 100%;
        margin-top: 5px;
      }
      .hidden {
        display: none;
      }
      .details {
        margin-top: 10px;
        font-size: 14px;
        color: #666;
      }
      label {
        display: inline-block;
        margin: 10px 0;
      }
      select {
        padding: 5px;
      }
      button {
        padding: 8px 15px;
      }
      #error {
        color: red;
        font-weight: bold;
        padding: 10px;
      }
    </style>
  </head>
  <body>
    <h2>
      SEA - Simple Embedded Audio Codec
      <a href="https://github.com/Daninet/sea-codec" target="_blank">[GitHub]</a>
    </h2>
    <div class="container">
      <!-- Encoding Column -->
      <div class="column">
        <h3>Encode to Sea</h3>
        <div class="file-drop" id="encode_drop">
          Drag & drop an audio file (WAV/FLAC/MP3/OGG/OPUS) or click to upload.
        </div>
        <input type="file" id="encode_input" accept=".wav,.mp3,.ogg,.flac,.opus" class="hidden" />
        <div>
          <label for="residual_size">Bitrate:</label>
          <select id="residual_size" name="residual_size">
            <option value="1">~1.2 bps (13.3x compression)</option>
            <option value="2">~2.2 bps ( 7.3x compression)</option>
            <option value="3" selected>~3.2 bps ( 5.0x compression)</option>
            <option value="4">~4.2 bps ( 3.8x compression)</option>
            <option value="5">~5.2 bps ( 3.1x compression)</option>
            <option value="6">~6.2 bps ( 2.6x compression)</option>
            <option value="7">~7.2 bps ( 2.2x compression)</option>
            <option value="8">~8.2 bps ( 2.0x compression)</option>
            <option value="vbr">VBR (experimental)</option>
          </select>
        </div>
        <div>
          VBR target bitrate:
          <input

            type="range"

            min="1.5"

            max="8"

            value="3"

            step="0.1"

            id="vbr_target_bitrate"

            disabled="disabled"

          />
          <label id="vbr_target_bitrate_label">3.0</label>
        </div>
        <br />
        <button id="encode_submit">Encode</button>
        <div id="encode_result" style="margin-top: 10px"></div>
      </div>

      <!-- Decoding Column -->
      <div class="column">
        <h3>Decode from Sea</h3>
        <div class="file-drop" id="decode_drop">Drag & drop a Sea file or click to upload.</div>
        <input type="file" id="decode_input" accept=".sea" class="hidden" />
        <button id="decode_submit">Decode</button>
        <div id="decode_result" style="margin-top: 10px"></div>
      </div>
    </div>

    <div id="error"></div>

    <script type="module" src="app.mjs"></script>

    <div style="text-align: center">
      <p><a href="https://github.com/Daninet/sea-codec" target="_blank">[GitHub]</a></p>
      <p style="text-align: center">Copyright © 2025 Dani Biró</p>
    </div>
  </body>
</html>