Fast PowerCepstrogram Creation (Advanced Performance API)

Create a PowerCepstrogram object bypassing R6 method dispatch for maximum performance. Returns an external pointer that can be used with other fast path functions.

Usage

to_powercepstrogram_fast(
  sound,
  pitch_floor = 60,
  time_step = 0.002,
  max_frequency = 5000,
  pre_emphasis_from = 50
)

Arguments

sound

Sound object or external pointer

pitch_floor

Numeric, minimum pitch in Hz (default 60)

time_step

Numeric, time step in seconds (default 0.002)

max_frequency

Numeric, maximum frequency in Hz (default 5000)

pre_emphasis_from

Numeric, pre-emphasis frequency in Hz (default 50)

Value

External pointer to PowerCepstrogram object

Details

**ADVANCED API** - Returns raw external pointer, not R6 object.

Use this when you need to create multiple PowerCepstrogram objects in a loop and want to minimize R6 overhead. The returned pointer can be: - Passed to other fast path functions - Wrapped in R6 PowerCepstrogram object if needed

Examples

sound <- Sound(system.file("extdata", "test.wav", package = "pladdrr"))

# Fast path: returns an external pointer, no wrapper object built
pcep_ptr <- to_powercepstrogram_fast(sound, 60, 0.002, 5000, 50)

# Wrap it when you want the method API
pcep <- PowerCepstrogram(.xptr = pcep_ptr)
pcep$get_cpps()
#> [1] 9.920529