Title :
An efficient model-based multirate method for reconstruction of audio signals across long gaps
Author :
Esquef, Paulo A A ; Biscainho, Luiz W P
Author_Institution :
Lab. of Acoust. & Audio Signal Process., Helsinki Univ. of Technol.
fDate :
7/1/2006 12:00:00 AM
Abstract :
This paper presents an efficient model-based interpolator for reconstructing long portions of missing samples in audio signals. A simple modification to an existing interpolation method is proposed, optimizing the balance between computational requirements and qualitative performance. Moreover, a post-processing multirate interpolation scheme is introduced to further enhance the quality of the restored signals. Subjective quality assessments of the reconstructed signals via listening tests substantiate the improved performance of the proposed algorithm
Keywords :
audio signal processing; interpolation; signal reconstruction; signal restoration; audio signal reconstruction; interpolation method; listening tests; model-based interpolator; multirate method; postprocessing multirate interpolation scheme; quality assessment; signal reconstruction; Audio recording; Degradation; Helium; Interpolation; Optimization methods; Quality assessment; Signal processing algorithms; Signal reconstruction; Signal restoration; Testing; Acoustic signal processing; audio reconstruction; autoregressive (AR) models; filterbanks;
Journal_Title :
Audio, Speech, and Language Processing, IEEE Transactions on
DOI :
10.1109/TSA.2005.858018