The AUDIS catalog of human HRTFs

Blauert, Jens; Brueggen, Marc; Bronkhorst, Adelbert W.; Drullman, Rob; Reynaud, Gerard; Pellieux, Lionel; Krebber, Winfried; Sottek, Roland

doi:10.1121/1.422910

Cited by 37 publications

(32 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent decades, HRTFs have been measured and databases have been established by a list of groups [2][3][4][5][6][7][8] , and some databases are opened for scientific purpose. But there still exist some problems on this issue:…”

Section: Introductionmentioning

confidence: 99%

Head-related transfer function database and its analyses

et al. 2007

View full text Add to dashboard Cite

Based on the measurements from 52 Chinese subjects (26 males and 26 females), a high-spatial-resolution head-related transfer function (HRTF) database with corresponding anthropometric parameters is established. By using the database, cues relating to sound source localization, including interaural time difference (ITD), interaural level difference (ILD), and spectral features introduced by pinna, are analyzed. Moreover, the statistical relationship between ITD and anthropometric parameters is estimated. It is proved that the mean values of maximum ITD for male and female are significantly different, so are those for Chinese and western subjects. The difference in ITD is due to the difference in individual anthropometric parameters. It is further proved that the spectral features introduced by pinna strongly depend on individual; while at high frequencies (ƒ ≥ 5.5 kHz), HRTFs are left-right asymmetric. This work is instructive and helpful for the research on binaural hearing and applications on virtual auditory in future.head-related transfer function, measurement, interaural time difference, binaural hearing

show abstract

Section: Introductionmentioning

confidence: 99%

Head-related transfer function database and its analyses

et al. 2007

View full text Add to dashboard Cite

show abstract

“…II was run but including this hypothetical hearing loss and amplification prescription. The use of the HMS II acoustic manikin HRTFs from the AUDIS catalog (Blauert et al, 1998) was assumed to give signals representative of those that might be received at the microphones of in-the-canal hearing aids. The CAMEQ prescription was implemented in such a way that the target levels were achieved at the eardrums of the hypothetical listener.…”

Section: Speech Intelligibility Predictions For a Hypothetical Bilmentioning

confidence: 99%

“…To summarize: The speech came from directly in front and the noise from 60 azimuth. The HMS II acoustic manikin HRTFs from the AUDIS catalog were used (Blauert et al, 1998), equalized for use with headphones having a diffuse-field response. All processing was performed independently in a low-(100 to 2000 Hz) and a high-frequency channel (2000 to 5000 Hz).…”

Section: Signal Processingmentioning

confidence: 99%

See 1 more Smart Citation

Linking dynamic-range compression across the ears can improve speech intelligibility in spatially separated noise

Wiggins

Seeber

2013

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

Recently introduced hearing devices allow dynamic-range compression to be coordinated at the two ears through a wireless link. This study investigates how linking compression across the ears might improve speech intelligibility in the presence of a spatially separated steady noise. An analysis of the compressors' behavior shows how linked compression can preserve interaural level differences (ILDs) and, compared to compression operating independently at each ear, improve the long-term apparent speech-to-noise ratio (SNR) at the ear with the better SNR. Speech intelligibility for normal-hearing listeners was significantly better with linked than with unlinked compression. The performance with linked compression was similar to that without any compression. The benefit of linked over unlinked compression was the same for binaural listening and for monaural listening to the ear with the better SNR, indicating that the benefit was due to changes to the signal at this ear and not to the preservation of ILDs. Differences in performance across experimental conditions were qualitatively consistent with changes in apparent SNR at the better ear. Predictions made using a speech intelligibility model suggest that linked compression could potentially provide a user of bilateral hearing aids with an improvement in intelligibility of up to approximately ten percentage points.

show abstract

“…A set of free-field-to-eardrum ͑or anechoic͒ head-related transfer functions ͑HRTFs͒ measured in an acoustic manikin ͑Head Acoustics ® , HMS II.3͒ as described in the AUDIS catalog ͑see Blauert et al, 1998͒, were used to simulate different spatial locations of the speech target and the masker signals. HRTFs provide a measure of the acoustic transfer function between a point in space and the eardrum of the listener, and also include the high-frequency shadowing component due to the presence of the head and the torso.…”

Section: B Signal Processingmentioning

confidence: 99%

Using blind source separation techniques to improve speech recognition in bilateral cochlear implant patients

Kokkinakis

Loizou

2008

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

Bilateral cochlear implants seek to restore the advantages of binaural hearing by improving access to binaural cues. Bilateral implant users are currently fitted with two processors, one in each ear, operating independent of one another. In this work, a different approach to bilateral processing is explored based on blind source separation ͑BSS͒ by utilizing two implants driven by a single processor. Sentences corrupted by interfering speech or speech-shaped noise are presented to bilateral cochlear implant users at 0 dB signal-to-noise ratio in order to evaluate the performance of the proposed BSS method. Subjects are tested in both anechoic and reverberant settings, wherein the target and masker signals are spatially separated. Results indicate substantial improvements in performance in both anechoic and reverberant settings over the subjects' daily strategies for both masker conditions and at various locations of the masker. It is speculated that such improvements are due to the fact that the proposed BSS algorithm capitalizes on the variations of interaural level differences and interaural time delays present in the mixtures of the signals received by the two microphones, and exploits that information to spatially separate the target from the masker signals.

show abstract

The AUDIS catalog of human HRTFs

Cited by 37 publications

References 0 publications

Head-related transfer function database and its analyses

Head-related transfer function database and its analyses

Linking dynamic-range compression across the ears can improve speech intelligibility in spatially separated noise

Using blind source separation techniques to improve speech recognition in bilateral cochlear implant patients

Contact Info

Product

Resources

About