---
pretty_name: Nasalization and Velum Control (Preview)
license: cc-by-nc-4.0
size_categories: [n<1K]
tags:
  - audio
  - dataset
  - vocals
  - nasalization
  - velum_control
  - nasal_airflow
  - human_voice
  - extended_vocal_techniques
  - speech_research
  - phonetics
  - sound_design
  - ai_training_data
  - sampling_96khz
  - bitdepth_24bit
  - mono
task_categories: [other]
language: [und]
thumbnail: thumbnail.png
description: "Resonance adjustments through velum shaping and nasal airflow variations."
---

![Dataset Thumbnail](./thumbnail.png)

# Harmonic Frontier Audio – Nasalization and Velum Control (Preview, v0.9)

**A high-fidelity human vocal dataset designed for AI training, speech research, and expressive voice modeling.**

**Nasalization and Velum Control (Preview)**, created by **Harmonic Frontier Audio**, provides a compact reference set demonstrating the quality, formatting, and metadata conventions used in the Harmonic Frontier Audio *Human Vocality Primitives* series.

---

## 🔎 Summary

This dataset provides high-quality, rights-cleared recordings of **nasalization and velum-controlled resonance adjustments** — controlled changes in oral vs. nasal airflow that reshape the spectral profile of voiced and semi-voiced sounds.

The recordings emphasize:
- velopharyngeal opening and closure control
- resonance shifts between oral-dominant and nasal-dominant configurations
- airflow redistribution across the vocal tract
- subtle timbral variation without semantic speech content

These characteristics make the dataset valuable for **AI speech modeling**, **phonetics research**, **resonance-aware synthesis**, **nasality detection systems**, and **human-aligned vocal control architectures**.

Developed by **Harmonic Frontier Audio**, this preview follows *The Proteus Standard™* for dataset provenance, transparency, and ethical AI use.  
Learn more about the Proteus Standard → https://harmonicfrontieraudio.com/proteus-standard

Full dataset details and licensing information are available at:  
https://harmonicfrontieraudio.com/datasets/nasalization-velum-control

If you find this dataset useful, please consider giving it a 🤍 on Hugging Face to help others discover it.

---

## 👃 About Nasalization and Velum Control

**Nasalization** occurs when the velum lowers to allow airflow through the nasal cavity during phonation, altering resonance and introducing nasal formant energy.  
**Velum control** refers to the deliberate adjustment of velopharyngeal closure, shaping how airflow is distributed between oral and nasal cavities.

These mechanisms are foundational to:
- speech production across languages
- resonance modeling in voice synthesis
- nasality classification and detection systems
- expressive vocal timbre control
- physiological and articulatory research

This dataset presents a **neutral, non-linguistic, non-performative representation** of nasal and velum-controlled resonance behaviors.  
It is not designed to encode semantic speech content, but rather to isolate **resonance-level acoustic primitives** driven by velopharyngeal configuration.

---

## 📂 Contents

### Audio Files (.wav)

- Recorded at **96 kHz / 24-bit** WAV format  
- Exported as **mono**  
- Fade-ins and fade-outs of **3–5 ms** applied for consistency  
- No compression, normalization, or creative processing applied  
- High-pass filtered at ~40 Hz to remove subsonic rumble  

This preview includes **4 representative audio files**, selected to demonstrate:
- oral-dominant resonance
- partial nasal coupling
- fully nasal-dominant airflow
- controlled transitions between resonance states

---

### Metadata (.csv)

Includes structured fields for:
- file name
- sound source type
- airflow type
- phonation type
- gesture and articulation descriptors
- microphone and recording chain
- sample rate, bit depth, and dataset version

Metadata follows the **Harmonic Frontier Audio – Foundations** schema.

---

## 🎤 Recording Notes

- Recorded in a treated studio environment using a **single-mic setup**:
  - **Microphone:** Rode NT1-A condenser microphone
  - **Recording chain:** Rode NT1-A → Zoom F8n Pro
- Captured at **96 kHz / 32-bit float**, rendered as **96 kHz / 24-bit** mono WAV for release.
- Natural room tone and subtle airflow variations were preserved to retain acoustic realism.

---

## 🌈 Spectrogram Preview

Below is a spectrogram illustrating the resonance shifts, nasal formant reinforcement, and airflow redistribution characteristic of velum-controlled phonation gestures:

![Spectrogram Preview](Spectrogram_Preview.png)

---

## ⚡ Usage

This preview pack is designed for:

- Evaluation of Harmonic Frontier Audio dataset quality and structure  
- Testing AI systems that model resonance control and nasality  
- Research in phonetics, speech synthesis, and articulatory modeling  
- Creative sound design involving nasal or resonance-shifted vocal timbres  

👉 **Note:** This is **not a full dataset**.  
The complete **Nasalization and Velum Control** dataset includes a substantially larger and more varied set of resonance primitives and is available for licensing.

---

## 💡 Full Dataset Availability

This is a **preview pack** of the *Nasalization and Velum Control Dataset*.  
The complete dataset is available for **commercial licensing**.

For licensing inquiries:  
📩 info@harmonicfrontieraudio.com

---

## 📥 How to Use This Dataset in Python

You can load the Parquet-converted version of this dataset directly with the `datasets` library:

```python
from datasets import load_dataset

dataset = load_dataset(
    "Harmonic-Frontier-Audio/Nasalization_and_Velum_Control_Preview",
    split="train"
)

print(dataset)
```

> ⚙️ *Note: Parquet conversion and `load_dataset()` support will be available within 2–3 days of publication.*

---

## 🔗 Explore More from Harmonic Frontier Audio

- [Breathy & Semi-Modal Phonation (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Breathy_and_SemiModal_Phonation_Preview)
- [Nasalization and Velum Control (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Nasalization_and_Velum_Control_Preview)
- [Whisper and Aspiration (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Whisper_and_Aspiration_Preview)
- [Plosives and Non-Lexical Consonant Bursts (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Plosives_and_Non_Lexical_Consonant_Bursts_Preview)
- [Subharmonic Phonation / Vocal Fry (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Subharmonic_Phonation_Vocal_Fry_Preview)
- [Overtone Singing (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Overtone_Singing_Preview)
- [Scottish Smallpipes (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Bagpipes_Scottish_Smallpipes_in_A_Preview)
- [Highland Bagpipes (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Bagpipes_Scottish_Highland_Bagpipes_Preview)
- [Irish Tin Whistle in D (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Irish_Tin_Whistle_in_D_Preview)
- [Kalimba (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Kalimba_Preview)
- [Kazoo (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Kazoo_Preview)

*(All datasets follow The Proteus Standard™ for ethical dataset provenance and licensing.)*

---

## 📜 License

Released under **[CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc-4.0/)**.

- Free for non-commercial use, testing, and research  
- Commercial licensing available via Harmonic Frontier Audio  
- A formal rights declaration is included in this dataset bundle

---

## 📧 Contact

Harmonic Frontier Audio  
📩 info@harmonicfrontieraudio.com  
🌐 https://harmonicfrontieraudio.com/

---

## 🗒️ Release Notes

**Version 0.9 (March 2026)** – Initial Preview Pack release for Nasalization and Velum Control.  
See `CHANGELOG.md` for detailed version history.

---

Citation

If you use this dataset in your research, please cite:

Pullen, B. (2026). Nasalization and Velum Control Dataset (Preview) [Data set]. Harmonic Frontier Audio. Zenodo.
https://doi.org/10.5281/zenodo.18862706

ORCID: https://orcid.org/0009-0003-4527-0178

### BibTeX

```bibtex
@dataset{pullen_2026_nasalization_velum_control_preview,
  author       = {Blake Pullen},
  title        = {Nasalization and Velum Control Dataset (Preview)},
  year         = {2026},
  publisher    = {Harmonic Frontier Audio},
  version      = {0.9},
  doi          = {10.5281/zenodo.18862706},
  url          = {https://doi.org/10.5281/zenodo.18862706}
}
```