Kendrick, P, Trevor, JC, Li, FF, Zhang, Y and Chambers, JA 2008, 'Monaural room acoustic parameters from music and speech' , The Journal of the Acoustical Society of America (JASA), 124 (1) , pp. 278-287.
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This paper compares two methods for extracting room acoustic parameters from reverberated speech and music. An approach which uses statistical machine learning, previously developed for speech, is extended to work with music. For speech, reverberation time estimations are within a perceptual difference limen of the true value. For music, virtually all early decay time estimations are within a difference limen of the true value. The estimation accuracy is not good enough in other cases due to differences between the simulated data set used to develop the empirical model and real rooms. The second method carries out a maximum likelihood estimation on decay phases at the end of notes or speech utterances. This paper extends the method to estimate parameters relating to the balance of early and late energies in the impulse response. For reverberation time and speech, the method provides estimations which are within the perceptual difference limen of the true value. For other parameters such as clarity, the estimations are not sufficiently accurate due to the natural reverberance of the excitation signals. Speech is a better test signal than music because of the greater periods of silence in the signal, although music is needed for low frequency measurement.
|Uncontrolled Keywords:||architectural acoustics, learning (artificial intelligence), maximum likelihood estimation, musical acoustics, reverberation, speech|
|Themes:||Subjects / Themes > Q Science > QC Physics > QC221-246 Acoustics - Sound
Subjects outside of the University Themes
|Schools:||Schools > School of the Built Environment
Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre (SIRC)
|Journal or Publication Title:||The Journal of the Acoustical Society of America (JASA)|
|Publisher:||Acoustical Society of America|
|Funders:||Engineering and Physical Sciences Research Council (EPSRC)|
|Depositing User:||P Kendrick|
|Date Deposited:||25 Nov 2009 09:21|
|Last Modified:||30 Nov 2015 23:50|
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