Harmonic Frontier Audio - Breathy and Semi-Modal Phonation (Preview Pack, v0.9)

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. ⚡ 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:📩 [e-mail] 🔗 Explore More from Harmonic Frontier Audio Breathy & Semi-Modal Phonation (Preview) Whisper and Aspiration (Preview) Plosives and Non-Lexical Consonant Bursts (Preview) Scottish Smallpipes (Preview) Highland Bagpipes (Preview) Irish Tin Whistle in D (Preview) Subharmonic Phonation / Vocal Fry (Preview) Kalimba (Preview) Kazoo (Preview) Overtone Singing (Preview) (All datasets follow The Proteus Standard™ for ethical dataset provenance and licensing.) 📜 License Released under CC 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📩 [e-mail]🌐 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.