sound:compute STFT
Last update: 31.07.2026Version: 0.0.0
Description
Compute Short-Time Fourier Transform (STFT) from a temporal signal.
Inputs
| Input | Name | Expected type(s) | Description |
|---|---|---|---|
| Pin 0 Required |
input_signal | field |
The input signal as a field on which to compute the STFT. |
| Pin 1 Required |
fft_size | int32 |
Size (as an integer) of the FFT to compute the STFT. Use a power of 2 for better performance. |
| Pin 2 | window_type | string |
The window used for the FFT computation, as a string. Allowed input strings are: * BLACKMAN * FLATTOP * GAUSS * HAMMING * HANN * RECTANGULAR * TRIANGULAR If no parameter is specified, the default value is 'HANN'. |
| Pin 3 | window_overlap | double |
The overlap value between two successive FFT computations (value between 0 and 1). 0 means no overlap, 0.5 means 50 % overlap. If no value is specified, default value is 0.5. |
Outputs
| Output | Name | Expected type(s) | Description |
|---|---|---|---|
| Pin 0 | output_stft | fields_container |
Output (complex) STFT, as a fields container. The fields container is indexed by labels "time" and "complex", and each indexed field corresponds to the real or imaginary part of an STFT slice (spectrum) at the specified time index. |
Configurations
| Name | Expected type(s) | Default value | Description |
|---|---|---|---|
| mutex | bool |
false | If this option is set to true, the shared memory is prevented from being simultaneously accessed by multiple threads. |
Scripting
Category: sound
Plugin: sound
Scripting name: None
Full name: None
Internal name: compute_stft
License: avrxp_snd_level1
Changelog
- Version 0.0.0: Initial release.
