Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
Recovery of Missing Signals Utilizing GHA(Generalized Harmonic Analysis)-Applied Interpolation
For archiving damaged historical recordings, recoveries of missing portions are essentially important as well as noise reduction. Conventional counter-measures with functional interpolation are not effective when the missing interval is long. Inharmonic frequency analysis GHA is profitable for this purpose, because the recomposed signal with frequency components obtained by GHA exhibits very long period. Length of the period is given as an inverse number of least common multiple of rendered inharmonic frequency?fs periods. This feature is very advantageous for signal recovery, and the authors devised an extrapolation simply extending a re-synthesizing waveform obtained through GHA analysis/re-synthesis. The authors got satisfactory results a whole by applying interpolation combined with forward and backward extrapolations based upon abovementioned method. Results of recovery highly depend upon characters of signals (such as music) and the author did not find definite rules for setting GHA?fs analyzing conditions. Those are given through auditory examination this time.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.