Audio Pitch

cat > /tmp/pitch_analysis.praat <<'PRAAT_SCRIPT'
Read from file: "<file>"
sound = selected("Sound")
To Pitch: <step>, <min_pitch>, <max_pitch>
pitch = selected("Pitch")
writeInfoLine: "time", tab$, "pitch_Hz", tab$, "note"
# ... iterate and output pitch values
PRAAT_SCRIPT
praat --run /tmp/pitch_analysis.praat

3. Parse results and identify notes:

   • Map detected frequencies to nearest kalimba note
   • Calculate deviation percentage
   • Flag non-kalimba frequencies

4. Report:

   • Pitch timeline with note names
   • Stable pitch regions (sustained notes)
   • Anomalies (frequencies not matching kalimba notes)

Example Usage

/audio-pitch d5-repeat-01
/audio-pitch d5-repeat-01 2.0 1.0 0.005
/audio-pitch mixed-sequence-01 0 5 0.01 200 1000

Notes

• Praat provides research-grade pitch detection
• More accurate than aubio for detailed analysis
• Use with /audio-onset to analyze specific onset times