Custom .h Encoding Rules — Conversion from Raw int8 Mono Audio Data

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1. Input: Raw int8 mono audio data (one byte per sample).

2. Byte-to-Symbol Mapping: Replace specific byte values with single-character symbols as follows:

   • 0x00 → #
   • 0xFF → $
   • 0x01 → %
   • 0xF0 → &
   • 0xFC → *
   • 0xEF → !
   • 0x0F → @

3. Unmapped Bytes: All other byte values are represented as uppercase two-digit hexadecimal strings without the 0x prefix (e.g., byte 0x12 → "12").

4. Separator: Each encoded byte or symbol is separated by exactly one space (" "). No commas, tabs, or multiple spaces are used.

5. No Concatenation for Hex Bytes: Two-digit hex strings are never concatenated; always separated by a space.

6. No Prefixes: The 0x prefix is removed from all hexadecimal byte representations.

7. No Newlines or Tabs: The entire data can be kept in a single line or broken into lines only by spaces. Tabs or other whitespace characters are not used.

8. Output Format: The resulting string is stored in a .h file as a plain C string or array for direct inclusion.

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End of rules