Enhance harmonicity features #777

Job	Run time
Documentation	4m 51s
Python 3.8 • ubuntu-latest	2m 47s
Python 3.9 • ubuntu-latest	1m 45s
Python 3.10 • ubuntu-latest	1m 56s
Python 3.11 (with Praat tests) • ubuntu-latest	18m 9s
Python 3.12 (with Praat tests) • ubuntu-latest	17m 56s
Python pypy-3.8 • ubuntu-latest	2m 21s
Python pypy-3.9 (with Praat tests) • ubuntu-latest	18m 12s
Python pypy-3.10 (with Praat tests) • ubuntu-latest	18m 32s
Python 3.11 (GCC 13) • ubuntu-24.04	1m 16s
Python 3.11 (Clang 18) • ubuntu-24.04	9m 9s
Python 3.11 (Release) • ubuntu-latest	2m 7s
Python 3.8 • macos-13	4m 40s
Python 3.11 (with Praat tests) • macos-latest	10m 13s
Python 3.12 • macos-latest	2m 13s
Python 3.11 (Release) • macos-latest	1m 41s
Python pypy-3.10 • macos-13	2m 49s
Python 3.8 • windows-latest	17m 2s
Python 3.11 (with Praat tests) • windows-latest	38m 42s
Python 3.12 • windows-latest	17m 7s
Python 3.8 (32-bit) • windows-latest	16m 55s
Python 3.11 (32-bit) • windows-latest	18m 4s
Python 3.11 (Release) • windows-latest	17m 58s
Python pypy-3.10 • windows-latest	17m 58s
	4h 24m 23s

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