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CHANGELOG.md

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+# Changelog -- Harmonic Frontier Audio: Breathy & Semi-Modal Phonation (Preview)
+
+## v0.9 -- March 2026
+
+-   Initial release of the **Breathy & Semi-Modal Phonation (Preview)
+    Preview Pack**
+-   Includes a curated subset of Breathy and Semi-Modal Phonation
+    gestures
+-   Recorded using **Rode NT1-A → Zoom F8n Pro**
+-   Captured at **96 kHz / 32-bit float** and exported as **96 kHz /
+    24-bit mono WAV**
+-   3--5 ms fade-ins and fade-outs applied; no normalization or
+    compression used
+-   Metadata sheet, README documentation, and rights declaration
+    included

HFA_HVP_BreathySemiModalPhonation_Preview_Metadata.csv

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+file_name,sound_source_type,instrument,airflow_type,phonation_type,content,note_pitch,articulation_type,gesture_type,vibrato,bpm,mic,channels,sample_rate_hz,bit_depth,record_chain,version,session_date,session_id,capture_location
+HFA_HVP_BreathySemiModalPhonation_Breathy_Low_TurbulentOnset_Take_1.wav,human_voice,voice,pulmonic_egressive,breathy,"Breathy phonation — low register — very soft / turbulent onset. Breathy phonation with very soft, turbulent onset; noise-dominant airy profile.",low,sustained,sustain,none,,Rode NT1-A,1,96000,24,Rode NT1-A -> Zoom F8n Pro,v1.0,2026-03-03,HFA-HVP-003,"Treated Studio, Las Vegas, NV, USA"
+HFA_HVP_BreathySemiModalPhonation_Breathy_Mid_ModerateStability_Take_1.wav,human_voice,voice,pulmonic_egressive,breathy,Breathy phonation — mid register — moderately stable. Breathy phonation with a clearer pitch center but still strongly airy; controlled leakage.,mid,sustained,sustain,none,,Rode NT1-A,1,96000,24,Rode NT1-A -> Zoom F8n Pro,v1.0,2026-03-03,HFA-HVP-003,"Treated Studio, Las Vegas, NV, USA"
+HFA_HVP_BreathySemiModalPhonation_SemiModal_Mid_Airy_Take_1.wav,human_voice,voice,pulmonic_egressive,semi_modal,Semi-modal phonation — mid register — airy. Semi-modal phonation with airy harmonics; light closure with audible breath noise layered on tone.,mid,sustained,sustain,none,,Rode NT1-A,1,96000,24,Rode NT1-A -> Zoom F8n Pro,v1.0,2026-03-03,HFA-HVP-003,"Treated Studio, Las Vegas, NV, USA"
+HFA_HVP_BreathySemiModalPhonation_SemiModal_High_StableLight_Take_1.wav,human_voice,voice,pulmonic_egressive,semi_modal,Semi-modal phonation — high register — stable but light. Semi-modal phonation with clearer periodicity; still gentle and non-projected (no ‘ring’).,high,sustained,sustain,none,,Rode NT1-A,1,96000,24,Rode NT1-A -> Zoom F8n Pro,v1.0,2026-03-03,HFA-HVP-003,"Treated Studio, Las Vegas, NV, USA"
+HFA_HVP_BreathySemiModalPhonation_Transition_BreathyToSemiModal_Low_Take_1.wav,human_voice,voice,pulmonic_egressive,breathy_to_semi_modal,Phonation transition — breathy → semi-modal — low register. Gradual transition from breathy phonation into semi-modal phonation within a single sustained take.,low,sustained,transition,none,,Rode NT1-A,1,96000,24,Rode NT1-A -> Zoom F8n Pro,v1.0,2026-03-03,HFA-HVP-003,"Treated Studio, Las Vegas, NV, USA"

README.md

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+---
+pretty_name: Breathy & Semi-Modal Phonation (Preview)
+license: cc-by-nc-4.0
+size_categories: [n<1K]
+tags:
+  - audio
+  - dataset
+  - vocals
+  - breathy_phonation
+  - semi_modal_phonation
+  - turbulent_onsets
+  - 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: "Soft phonation with turbulent onsets and airy harmonic profiles."
+---
+
+![Dataset Thumbnail](./thumbnail.png)
+
+# Harmonic Frontier Audio – Breathy & Semi-Modal Phonation (Preview, v0.9)
+
+**A high-fidelity human vocal dataset designed for AI training, speech research, and expressive voice modeling.**
+
+**Breathy & Semi-Modal Phonation (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 **breathy and semi-modal phonation gestures** — soft, partially turbulent voicing behaviors that sit between fully modal phonation and non-voiced airflow noise.
+
+The recordings emphasize:
+- turbulent / aspirate onsets
+- airy harmonic structure (mixed periodic + aperiodic energy)
+- controlled transitions between breathy and more stable voicing
+- low-intensity phonation suitable for fine-grained onset and timbre modeling
+
+These characteristics make the dataset valuable for **AI speech modeling**, **phonetics research**, **voice synthesis**, **breath-aware phonation modeling**, and **human-aligned vocal control systems**.
+
+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/breathy-semi-modal-phonation
+
+If you find this dataset useful, please consider giving it a 🤍 on Hugging Face to help others discover it.
+
+---
+
+## 🌬️ About Breathy & Semi-Modal Phonation
+
+**Breathy phonation** occurs when the vocal folds vibrate with incomplete closure, allowing continuous airflow leakage and adding a strong noise component to the sound.  
+**Semi-modal phonation** refers to a stable but softer voicing mode that retains harmonic structure while remaining closer to breathy or airflow-adjacent behavior than fully modal speech voice.
+
+These phenomena are foundational to:
+- expressive voice production and timbral control
+- onset and aspiration modeling in speech synthesis
+- phonation-type classification and physiological modeling
+- controllable voice systems that need interpretable “softness,” “airiness,” or “effort” dimensions
+
+This dataset presents a **neutral, non-linguistic, non-performative representation** of breathy and semi-modal phonation.  
+It is not designed to encode semantic speech content, but rather to isolate **acoustic primitives** that underlie airy voicing and turbulent onset behavior.
+
+---
+
+## 📂 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 **5 representative audio files**, selected to demonstrate:
+- soft phonation with audible airflow leakage
+- turbulent onsets and breath-dominant attacks
+- airy harmonic profiles with mixed periodic/aperiodic structure
+- subtle transitions toward more stable voicing
+
+---
+
+### 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 low-level breath noise were preserved to retain acoustic realism.
+
+---
+
+## 🌈 Spectrogram Preview
+
+Below is a spectrogram illustrating the mixed harmonic + broadband noise structure, turbulent onset energy, and airflow leakage characteristic of breathy and semi-modal 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 phonation type, onset behavior, and airy vocal timbre  
+- Research in phonetics, speech synthesis, and expressive vocal modeling  
+- Creative sound design involving breathy voice textures and soft vocal gestures  
+
+👉 **Note:** This is **not a full dataset**.  
+The complete **Breathy & Semi-Modal Phonation** dataset includes a substantially larger and more varied set of phonation primitives and is available for licensing.
+
+---
+
+## 💡 Full Dataset Availability
+
+This is a **preview pack** of the *Breathy & Semi-Modal Phonation 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/Breathy_and_SemiModal_Phonation_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)
+- [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)
+- [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)
+- [Subharmonic Phonation / Vocal Fry (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Subharmonic_Phonation_Vocal_Fry_Preview)
+- [Kalimba (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Kalimba_Preview)
+- [Kazoo (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Kazoo_Preview)
+- [Overtone Singing (Preview)](https://huggingface.co/datasets/Harmonic-Frontier-Audio/Overtone_Singing_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 Breathy & Semi-Modal Phonation.  
+See `CHANGELOG.md` for detailed version history.
+
+---
+
+Citation
+
+If you use this dataset in your research, please cite:
+
+Pullen, B. (2026). Breathy & Semi-Modal Phonation Dataset (Preview) [Data set]. Harmonic Frontier Audio. Zenodo.
+https://doi.org/10.5281/zenodo.18862239
+
+ORCID: https://orcid.org/0009-0003-4527-0178
+
+### BibTeX
+
+```bibtex
+@dataset{pullen_2026_breathy_semimodal_phonation_preview,
+  author       = {Blake Pullen},
+  title        = {Breathy & Semi-Modal Phonation Dataset (Preview)},
+  year         = {2026},
+  publisher    = {Harmonic Frontier Audio},
+  version      = {0.9},
+  doi          = {10.5281/zenodo.18862239},
+  url          = {https://doi.org/10.5281/zenodo.18862239}
+}
+```

RightsDeclaration_Breathy_and_SemiModal_Phonation_Preview.txt

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+Harmonic Frontier Audio – Rights Declaration
+--------------------------------------------
+
+All recordings contained in this dataset were created by Blake Pullen,
+performer and producer, in March 2026 under the Harmonic Frontier Audio brand.
+
+- Performer: Blake Pullen
+- Vocal Technique: Breathy and Semi-Modal Phonation
+- Recording Location: Private studio, Las Vegas, Nevada
+- Recording Dates: March 2026
+
+No third-party performers, copyrighted works, or external samples are included.
+All material consists of original, non-lexical vocal performances created
+specifically for this dataset.
+
+Harmonic Frontier Audio (HFA) is the sole copyright owner of these recordings
+and associated metadata. This dataset is free of encumbrances and may be
+licensed by Harmonic Frontier Audio under the terms stated in the accompanying
+README documentation.

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