In This Section
Reflecting on Reflections - June 2014
Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
Quiet Thoughts on a Deafening Problem - May 2014
AES Journal Forum
High-Definition Audio Spectrum Separation via Frequency Response Masking Filter Banks
In this paper a general structure for two-band filter banks with rational sampling factors is proposed to arbitrarily separate the audio spectrum. The authors extended a quadrature mirror filter (QMF) bank to unevenly decompose spectra into a specific ratio and then reconstructed them with negligible distortion. To achieve high-precision filter banks and reduce the implementation cost, the authors also integrated the rational filter banks with the frequency response masking (FRM) approach for the digital filter bank design. This procedure can be applied to filter banks with both integer and rational decimation factors.
No AES members have commented on this paper yet.
Subscribe to this discussion
Start a discussion!
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.