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Add SigmaStudio manual chapter and align EQ runtime with export map.

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Document the ADAU1701 schematic chain (sigma-chain.jpg), cross-link from
hardware/firmware chapters, skip safeload on fixed high-pass band 0, and
match EqProfile default peaking frequencies to SigmaStudio.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
michele
2026-07-06 16:55:23 +02:00
co-authored by Cursor
parent ab3651e678
commit 6c350f5c48
10 changed files with 279 additions and 11 deletions
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Software/docs/manual/ch-classes.tex
+5 -3
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@@ -162,9 +162,11 @@ Strong index into the six-band \texttt{Param EQ1} module (0--5). Maps to
parameter RAM via \texttt{adau1701::paramAddrEqBandBase()}.
\section{EqProfile}\label{cls:EqProfile}
Six-band parametric EQ snapshot with default centre frequencies
(40\,Hz--12\,kHz). Designed in the pure core; coefficients safeloaded by
\texttt{Adau1701Driver::applyEq()}.
Six-band parametric EQ snapshot aligned with the SigmaStudio map
(Chapter~\ref{ch:sigmastudio}): band index~0 is the fixed 20\,Hz
high-pass; bands 1--5 are peaking at 100\,Hz--8\,kHz. Designed in the
pure core; peaking bands are safeloaded by \texttt{Adau1701Driver::applyEq()}
(band~0 is skipped).
\section{IDsp}\label{cls:IDsp}
Abstract ADAU1701 control boundary. Defines \texttt{applyProfile()},