Fix Ogg draft formatting.
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@ -1168,9 +1168,13 @@ When extending the end of the signal, order-N (typically with N ranging from 8
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to 40) LPC analysis is performed on a window near the end of the signal.
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The last N samples are used as memory to an infinite impulse response (IIR)
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filter.
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</t>
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<figure align="center">
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<preamble>
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The filter is then applied on a zero input to extrapolate the end of the signal.
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Let a(k) be the kth LPC coefficient and x(n) be the nth sample of the signal,
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each new sample past the end of the signal is computed as:
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</preamble>
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<artwork align="center"><![CDATA[
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N
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---
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@ -1179,6 +1183,8 @@ x(n) = \ a(k)*x(n-k)
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---
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k=1
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]]></artwork>
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</figure>
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<t>
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The process is repeated independently for each channel.
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It is possible to extend the beginning of the signal by applying the same
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process backward in time.
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@ -1213,6 +1219,8 @@ De-emphasis is allowed.</t>
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</t>
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</section>
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</section>
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<section anchor="implementation" title="Implementation Status">
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<t>
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A brief summary of major implementations of this draft is available
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