bobby/open_dbm
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[New Feature] Add web folder to support web documentation

Browse Source
This commit is contained in:
Rudy Haryanto
2022-10-04 20:17:17 +07:00
parent c27f624ca8
commit a54aa04c9b
251 changed files with 11079 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
docs/website/versioned_docs/version-2.0/formant-frequencies.md Normal file
View File

@@ -0,0 +1,24 @@
---
id: formant-frequencies
title: Formant Frequencies
---
## Formant Frequencies (f<sub>1-4</sub>)
Formants are spectral peaks in the sound spectrum that are typically distributed in bands across different frequencies[^1]. OpenDBM outputs values for the first four formants (f<sub>1-4</sub>), with N in the variable names in the tables below referring to the formant number.
[^1]: https://en.wikipedia.org/wiki/Fundamental_frequency
## Raw Variables
| Variable | Description |
| ----------- | ----------- |
| `aco_fmN` | **Formant frequency.** Frame-wise formant frequency (f<sub>N</sub>) measurements, with N being 1, 2, 3, or 4, referring to the 1st, 2nd, 3rd, or 4th formant respectively. |
## Derived Variables
| Variable | Description |
| ----------- | ----------- |
| `aco_fmN_mean` | **Formant frequency mean.** Mean of the Nth formant (f<sub>N</sub>) across all audio frames. |
| `aco_fmN_std` | **Formant frequency standard deviation.** Standard deviation of the Nth formant (f<sub>N</sub>) across all audio frames. |