"><a href="#example-4-frequency-aliasing-phenomenon-beyond-sr2" class="nav-link">Example 4: Frequency aliasing phenomenon beyond SR/2</a>
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            </li>
            <li class="nav-item" data-level="3"><a href="#example-5-additive-synthesis" class="nav-link">Example 5: Additive synthesis</a>
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              </ul>
            </li>
            <li class="nav-item" data-level="3"><a href="#example-6-appro