Results 111 to 120 of about 10,780 (248)

Frequency Estimation Of The First Pinna Notch In Head-Related Transfer Functions With A Linear Anthropometric Model [PDF]

open access: yes, 2015
The relation between anthropometric parameters and Head-Related Transfer Function (HRTF) features, especially those due to the pinna, are not fully understood yet. In this paper we apply signal processing techniques to extract the frequencies of the main
Avanzini, Federico, Spagnol, Simone
core  

Noise Weighting in the Design of {\Delta}{\Sigma} Modulators (with a Psychoacoustic Coder as an Example)

open access: yes, 2013
A design flow for {\Delta}{\Sigma} modulators is illustrated, allowing quantization noise to be shaped according to an arbitrary weighting profile. Being based on FIR NTFs, possibly with high order, the flow is best suited for digital architectures.
Bizzarri, Federico, Callegari, Sergio
core   +1 more source

Ogg Vorbis sebagai Salah Satu Alternatif Metode Pemampatan Suara Merugi

open access: yesDinamika Rekayasa, 2006
Multimedia technology has changed rapidly. How to get a small audio file with the high quality that still equal to the real quality is became the common issue in the sound compression world.
Azis Wisnu Widhi Nugraha
doaj  

Vibration Analysis and Time Series Prediction for Wind Turbine Gearbox Prognostics [PDF]

open access: yesInternational Journal of Prognostics and Health Management, 2013
Premature failure of a gearbox in a wind turbine poses a high risk of increasing the operational and maintenance costs and decreasing the profit margins.
Hossam A. Gabbar, Sajid Hussain
doaj  

On the Use of Acoustic Wind Tunnel Data for the Simulation of sUAS Flyover Noise [PDF]

open access: yes
Acoustic measurements of a small, unmanned aerial system were recently acquired during a ground test campaign. The purposes of the ground test, conducted in the NASA Langley Low Speed Aeroacoustic Wind Tunnel, were to characterize the source noise in ...
Pettingill, Nicole A.   +2 more
core   +1 more source

Advanced audio coding with efficient psychoacoustic modeling

open access: yes, 2008
Data compression technique is an essential task for audio systems, which not only handles enormous amounts of data, but also requires the high quality resolution. One of these audio coding techniques, Moving Pictures Experts Group (MPEG) is powerful audio compression standardization.
openaire   +2 more sources

Drone auralization model with statistical synthesis of amplitude and frequency modulations

open access: yesActa Acustica
This paper presents a drone auralization model that reproduces the spectro-temporal and spatial characteristics of a drone during flight. Focusing on perceptual plausibility, the time-variant processes are modeled by taking into account the statistical ...
Dreier Christian, Vorländer Michael
doaj   +1 more source

Establishment and verification of auditory brainstem implant vocoder model

open access: yesShanghai Jiaotong Daxue xuebao. Yixue ban
Objective·To develope an auditory brainstem implant (ABI) vocoder based on cochlear implant (CI) vocoder characteristics and ABI electrode array topology, and to verify its reliability.Methods·An "n-of-m" coding strategy CI/ABI vocoder was constructed ...
ZHANG Qinjie   +9 more
doaj   +1 more source

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