Adds a pitch-shifting audio effect to an Audio bus. Raises or lowers the pitch of original sound.
Allows modulation of pitch independently of tempo. All frequencies can be increased/decreased with minimal effect on transients.
- The size of the [url=https://en.wikipedia.org/wiki/Fast_Fourier_transform]Fast Fourier transform[/url] buffer. Higher values smooth out the effect over time, but have greater latency. The effects of this higher latency are especially noticeable on sounds that have sudden amplitude changes.
- The oversampling factor to use. Higher values result in better quality, but are more demanding on the CPU and may cause audio cracking if the CPU can't keep up.
- The pitch scale to use. [code]1.0[/code] is the default pitch and plays sounds unaltered. [member pitch_scale] can range from [code]0.0[/code] (infinitely low pitch, inaudible) to [code]16[/code] (16 times higher than the initial pitch).
Use a buffer of 256 samples for the Fast Fourier transform. Lowest latency, but least stable over time.
Use a buffer of 512 samples for the Fast Fourier transform. Low latency, but less stable over time.
Use a buffer of 1024 samples for the Fast Fourier transform. This is a compromise between latency and stability over time.
Use a buffer of 2048 samples for the Fast Fourier transform. High latency, but stable over time.
Use a buffer of 4096 samples for the Fast Fourier transform. Highest latency, but most stable over time.
Represents the size of the [enum FFT_Size] enum.