COAT: Cross-Site Head and Headphone Transfer Functions from 27 Participants

27 participants contributed head-related and headphone transfer functions measured at two German research institutes. The dataset, used in published studies on loudness balancing, includes measurements from 14 individuals at both sites and 13 at a single site. Files are stored in the SOFA format, an AES standard for spatial acoustics data.

Use Cases

• Modeling individual spatial hearing based on head-related transfer functions (HRTFs) from multiple participants.
• Investigating loudness mismatches between headphones and loudspeakers using headphone transfer functions (HpTFs).
• Comparing measurement methodologies across different sites and microphone positions described in the dataset.
• Developing or validating binaural audio rendering algorithms with real human HRTF data.

Strengths

• Includes data from 27 distinct human participants, providing individual variability.
• Measurements were conducted at two independent research sites, allowing for cross-site investigation.
• Headphone transfer functions include repeated measurements (up to eight times) for reliability assessment.
• Uses the standardized SOFA file format, adhering to the AES69-2015 standard for spatial acoustics data.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment for large-scale modeling.
• Column-level documentation is absent; field semantics must be inferred after download from the SOFA files.
• Last update date is unknown; freshness unverified.

Provenance

Source

Institute of Technical Acoustics, RWTH Aachen University and Medizinische Physik & Cluster of Excellence Hearing4All, Universität Oldenburg.

Collection Method

Physical acoustic measurements of individual participants and headphone test fixtures.

Geography

Measurements conducted in Aachen and Oldenburg, Germany.