• Corpus ID: 14140510

Addendum to 'Generalized Fractional-Octave Smoothing of Audio and Acoustic Responses'

@article{Hatziantoniou2000AddendumT,
  title={Addendum to 'Generalized Fractional-Octave Smoothing of Audio and Acoustic Responses'},
  author={Panagiotis D. Hatziantoniou and John Mourjopoulos},
  journal={Journal of The Audio Engineering Society},
  year={2000},
  volume={48},
  pages={940-940}
}
A methodology is introduced for smoothing the complex transfer function of measured responses using well-established or arbitrary fractional-octave profiles, based on a novel time-frequency mapping framework. A corresponding impulse response, also derived analytically, has reduced complexity but conforms to perceptual principles. The relationship be tween complex smoothing and traditional power spectral smoothing is also discussed. 
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87 Citations
Highly Influential Citations
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17
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87 Citations

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References

SHOWING 1-10 OF 42 REFERENCES
Time-frequency mapping based on non-uniform smoothed spectral representations
TLDR
A theoretical model for non-uniform spectral smoothing is introduced allowing the choice of arbitrary frequency resolution profiles to match such auditory features and this generalized framework is extended to allow mapping of such smoothing spectra into the time domain.
A Time-Frequency Auditory Model Using Wavelet Packets
TLDR
It is shown that the change in the time-frequency excitation pattern introduced when a test tone at masked threshold is added to the masker is approximately equal to 7 dB for all types of maskers, and the classic detection ratio therefore overrates the detection efficiency of the auditory system.
Comparison of Loudspeaker Equalization Methods Based on DSP Techniques
Methods of loudspeaker response equalization using digital filters are compared. In addition to generally known methods and techniques a recently introduced new principle, based on warped filters, is…
A Capon's time-octave representation application in room acoustics
TLDR
A new method combining both Capon's estimator and a time-octave representation is proposed to obtain legibility in the time frequency plane using a variable frequency resolution with a fixed time resolution.
Psychoacoustics: Facts and Models
This description of the processing of sound by the human hearing system presents the quantitative relationship between sound stimuli and auditory perceptions in terms of hearing sensations, and…
Linear prediction on a warped frequency scale
Linear prediction is considered with respect to a nonlinear frequency scale obtained by a first‐order all‐pass transformation. The predictor can be computed from a frequency‐warped autocorrelation…
Music Signal Segmentation Using Tree-Structured Filter Banks
For music signal segmentation, an 11-stage tree-structured filter bank that leads to wavelet packet analysis was designed and implemented. The tree-structured filter bank has sufficient frequency…
The Detection of Reflections in Typical Rooms
In this study, the effects of reflected sounds were examined as they would occur in stereophonic reproduction in rooms of domestic or control-room size. Thresholds were determined as a function of…
Structural subband decomposition: a new concept in digital signal processing
  • S. Mitra
  • Engineering
    ISPA 2001. Proceedings of the 2nd International Symposium on Image and Signal Processing and Analysis. In conjunction with 23rd International Conference on Information Technology Interfaces (IEEE Cat.
  • 2001
Summary form only given, as follows. Polyphase decomposition of a sequence was advanced to develop computationally efficient interpolators and decimators, and has also been used to design…
Sound system engineering
1. Mathematics for Audio Systems 2. Using the decibel 3. Interfacing Electrical and Acoustical Systems 4. Loudspeaker Directivity and Coverage 5. The Acoustic Environment 6. Audio and Acoustic…
...
...