Create PointProcess from Sound and Pitch (Cross-Correlation)

Creates a PointProcess using BOTH Sound and refined Pitch contour. This matches Praat's "To PointProcess (cc)" command when both Sound and Pitch objects are selected.

**IMPORTANT for VUV Analysis:** This function uses the refined pitch contour to guide period detection, which is more accurate than using pitch range parameters alone. This is the correct method for voice quality analysis (jitter, shimmer, VUV detection).

**Algorithm Difference:** - `sound$to_point_process_periodic_cc(floor, ceiling)` - Uses only pitch range - `to_point_process_from_sound_and_pitch(sound, pitch)` - Uses refined pitch contour (recommended)

Usage

to_point_process_from_sound_and_pitch(sound, pitch)

Arguments

sound

Sound object or external pointer

pitch

Pitch object or external pointer (from to_pitch_ac/cc)

Value

External pointer to PointProcess

See also

to_point_process_direct for the single-object Sound method

Examples

sound <- Sound$create_tone(frequency = 200, duration = 0.5)

# Create refined pitch analysis
pitch <- sound$to_pitch_cc(
  time_step = 0,
  pitch_floor = 75,
  pitch_ceiling = 600,
  voicing_threshold = 0.45
)

# RECOMMENDED: Use both Sound and Pitch for accurate pulse detection
pp <- to_point_process_from_sound_and_pitch(sound, pitch)

# Now calculate jitter with accurate pulse times
pp_r6 <- PointProcess(.xptr = pp)
jitter <- pp_r6$get_jitter_local()