Files

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The main SOFA repository aims at collect the worldwide available HRTFs, BRIRs, DRIRs, and other SOFA-related data at a single place. It is just in the process of being created: Partial download, metadata access, and database search is not available (yet, we are investigating the possibility of using OPeNDAP for SOFA repositories). Currently, the data can be accessed and downloaded as they are and the metadata are provided in the particular files.

General purpose free-field databases (HRTFs, PRTFs)

Standard (in-the-ear canal) HRTFs of humans:

  • ARI: HRTFs from the ARI database. In-the-ear HRTFs and DTFs for over 220 listeners.
    • hrtf, dtf: HRTFs and DTFs, respectively, equalized between 300 Hz and 18 kHz
    • hrtf b/c, dtf b/c: HRTFs and DTFs, equalized between 50 Hz and 18 kHz for hi-fi auralizations ("b" and "c" differ each other only in their starting positions and the order of measurement positions: b: 0°→0°, c: 270°→270°; direction always clockwise ↻)
  • ARI (ALTB): HRTFs from the ARI database. Measurements for some of the listeners from the ARI database, repeated and evaluated a few years later, see Majdak et al. (2013).
  • ARI (LAS): In-the-ear HRTFs and DTFs are measured in the ARI loudspeaker array studio (LAS). Each set of HRTFs contains 451 sound-source directions (91 loudspeakers by 5 subject roations), see McLachlan et al. (2023).
  • CIPIC: HRTFs from the CIPIC database. 45 listeners, partially anthropometric data available.
  • RIEC: Far-field HRTFs from the RIEC database from the Advanced Acoustic Information Systems Laboratory, Research Institute of Electrical Communication, Tohoku University, Japan of over 100 human listeners. (Credit: Kajni Watanabe, Japan)
  • Aachen: HRTFs from the Aachen HRTF database, combined with anthropometric data and 3D ear models of 48 listeners. See the license. (Credit: Janina Fels, Aachen)
  • Aachen: High-resolution HRTFs from the Aachen HRTF database, combined with a 3D model of one human listener. (Credit: Janina Fels, Aachen)
  • HUTUBS: HRTFs from the HUTUBS database containing anthropometric data, headphone impulse responses, and 3D head models from 96 listeners. The database acquisition is detailed in the accompanying paper. (Credit: Fabian Brinkmann, Berlin)
  • CHEDAR: Numerically calculated HRTFs (.sofa) with 3D meshes of the head and pinnae (.ply) and anthropometric data (.mat) provided. For more details, see the documentation. (Credit: Slim Ghorbal, France)
  • 3D3A: Measured in-the-ear HRTFs (.sofa) of 38 subjects, and 3D head and torso scans of 31 subjects from the Princeton 3D3A Database. (Credit: Edgar Choueiri, USA)
  • BiLi: Measured in-the-ear HRTF files (.sofa) of 56 subjects. Data are available in DTF format, raw HRTF format, and as DTF format in SOS data type. Multiple sampling rates of these data are available on the download page of the IRCAM database. (Credit: Markus Noisternig, Paris)
  • Crossmod: Measured in-the-ear HRTF files (.sofa) of 24 subjects. Data are available in DTF format, raw HRTF format, and as DTF format in SOS data type. Multiple sampling rates of these data are available on the download page of the IRCAM database. (Credit: Markus Noisternig, Paris)
  • Listen: Measured in-the-ear HRTF files (.sofa) of 50 subjects. Data are available in DTF format, raw HRTF format, and as DTF format in SOS data type. Multiple sampling rates of these data are available on the download page of the IRCAM database. (Credit: Markus Noisternig, Paris)
  • SADIE: Measured in-the-ear HRTF files (.sofa) of 18 human subjects (indices H3 to H20). 3D scans area available on the website of the SADIE II datebase. (Credit: Gavin Kearney and Cal Armstrong, York)
  • SCUT: Near-field HRTFs and anthropometric data (CSV and PDF) of human listeners. (Credit: Guangzheng Yu & Yu Lan, China)
  • AXD: HRTFs from the AXD/SONICOM database, for 200 listeners. More information about the measurement setup and validation can be found here. (Credit: Lorenzo Picinali, London)


HRTFs of artificial heads:

  • MIT-KEMAR: HRTFs from MIT of the KEMAR dummy head. Reference HRTFs used in many publications.
  • ARI (ARTIFICIAL): HRTFs of mannequins (dummy heads) measured at ARI using the same setup as for human listeners:
    • NH169: HRTFs, DTFs, and raw data of a printed head of the corresponding human listener
    • NH172: HRTFs, DTFs, raw and reference data of the dummy head Neumann KU 100. Also part of Club Fritz, see below.
  • THK/HRIR_*: HRTFs of various mannequins provided by the Technische Hochschule Köln (TH Köln, previously Fachhochschule Köln); further details can be found here:
    • Far-field HRTFs: Gapless data, high spatial resolution HRTFs of Neumann KU 100. Files: HRIR_CIRC360, HRIR_CIRC360RM, HRIR_FULL2DEG, HRIR_L2354, HRIR_L2702.sofa (Credit: Benjamin Bernschütz, Germany).
    • Near-field HRTFs (HRIR_*_NF*.sofa): High spatial resolution HRTFs of Neumann KU 100 done for various distances (Credit: Johannes Arend, Germany).
    • Head-gear HRTFs of Neumann KU 100 and HEAD acoustics HMS II (KU100*.sofa, HMSII*.sofa): High spatial resolution HRTFs while wearing various head gears (Credit: Christoph Pörschmann, Germany).
  • SCUT: Near-field HRTFs from SCUT database of the KEMAR (Radius: 0.2 to 1.0 m). (Credit: Bosun Xie, China)
  • TU-Berlin:
    • HRTFs from TU-Berlin of the KEMAR dummy-head. HRTFs for several distances (>0.5 m). (Credit: Hagen Wierstorf, Germany)
    • HRTFs from TU-Berlin of the FABIAN dummy-head. Acoustically measured and numerically calculated HRTFs. (Credit: Fabian Brinkmann, Germany)
  • Club Fritz: HRTFs of Neumann KU 100 measured as part of the Club Fritz project where many institutions measured the exact same artificial head, see Andreopoulou et al, (2015). (Credit: Brian Katz, France).
  • VIKING: Full-sphere HRTFs (.sofa) from the Viking database. KEMAR mannequin with 20 different pairs of artificial silicone pinnae attached, plus a "pinna-less" condition, measured for 1513 different directions. 3D scans of left pinnae are also included (.stl). (Credit: Simone Spagnol, Denmark)
  • Aachen: High-resolution HRTFs of the KEMAR dummy head from the Aachen HRTF database, combined with a 3D model of one subject. (Credit: Janina Fels, Aachen)
  • PKU-IOA: High spatial resolution in-the-ear HRTF database of the KEMAR dummy head with distance from 20 cm to 160 cm, including 20, 30, 40, 50, 75, 100, 130, and 160 cm. (Credit: Tianshu Qu, China)
  • SADIE: Measured in-the-ear HRTF files (.sofa) of 2 dummy heads (indices D1, D2). 3D scans area available on the website of the SADIE II datebase. (Credit: Gavin Kearney and Cal Armstrong, York)
  • AXD: HRTFs from the AXD/SONICOM database, for the KEMAR head, for 2 ears. (Credit: Lorenzo Picinali, London)


Special HRTFs:


PRTFs:

  • Widespread (Wide dataset of ear shapes and pinna-related transfer functions obtained by random ear drawings): 1005 pinna meshes matched with correspondingly calculated PRTFs from the FAST team, IETR (CNRS UMR 6164), CentraleSupélec. The meshes were created by varying principle components obtained from an analysis of 119 pinna meshes of actual listeners. The PRTFs were calculated by means of the boundary-element method for two spatial grids and three distances, see the upcoming publication (documentation). (Credit: Corentin Guezenoc, France).

Directivities (sources and receivers)

Sources:

  • TU-Berlin: One data set of a 3-way loudspeaker (low- mid- and high-unite) in 10°x10° resolution, and two data sets of a trumpet, recorded with a 32 channel microphone array, from the TU Berlin. (Credit: David Ackermann, Germany)

Receivers:

  • TBA

Room impulse responses databases (DRIRs, SRIRs, BRIRs)

RIRs/BRIRs/DRIRs:

  • Oldenburg DRIRs from Oldenburg. Recordings in an office under several conditions (Credit: Stephan Ewert and Daryl Kelvasa, Germany).
  • TuBuRo: RIRs (from omnidirectional mic) and BRIRs (from KEMAR) recorded with 64-channel loudspeaker array in a room under various absorbing conditions, see the source, notes on the file naming and Erbes et al. (2015). (Credit: Vera Erbes, Rostock, Germany).
  • SBSBRIR: BRIRs from the Salford-BBC dataset measured in a recording room for 12 loudspeakers, each for 15 head orientations (details). (Credit: Chris Pike, Salford).
  • THK/DRIR_* and THK/BRIR_*: DRIRs and BRIRs measured at the WDR broadcast studios with various microphone arrays provided by the Technische Hochschule Köln (TH Köln). For description, see here. (Credit: Johannes Arend).
  • Room Transition dataset: SRIRs capturing the transition between coupled rooms with 101 positions and four coupled room pairs. For description, see here (Credit: Thomas McKenzie, Aalto).
  • 6DoF dataset: SRIRs measured in a variable acoustics room with two spherical microphone arrays. For description, see here. (Credit: Thomas McKenzie, Aalto).
  • New: KAIST-IEM dataset: 6 DoF DRIR dataset measured over a dense loudspeaker grid (6DRIR-DL). For description, see here. (Credit: Jung-Woo Choi, KAIST, Korea; Franz Zotter, IEM Graz).

Headphone impulse responses (HpIRs)

  • ARI: HpIRs of human listeners from the ARI database. Single headphone, five measurements (with repositioned headphone in-between) for over 100 listeners.
  • BT-DEI: HpIRs of human listeners from the BT-DEI database. 16 listeners, three headphones (Credit: Michele Geronazzo, Italy).
  • TU-Berlin of the FABIAN: HpIRs of the FABIAN mannequin. Acoustically measured for 34 headphones. (Credit: Fabian Brinkmann, Germany).

Example & Test SOFA Files

Other repositories

This is a list of other repositories providing HRTFs, BRIRs, and DRIRs available as SOFA files.

Database missing?

If you want your/a SOFA database to be added please contact Michael Mihocic or Piotr Majdak for support.

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