公开(公告)号：US12087267B2

公开(公告)日：2024-09-10

申请号：US17978900

申请日：2022-11-01

申请人： Jonathan Abel

发明人： Jonathan Abel

IPC分类号： H04S7/00 ,  G10K15/12 ,  G01R23/00 ,  G10H1/36 ,  G10H5/00 ,  G10H5/02 ,  H03H17/02

CPC分类号： G10K15/12 ,  G01R23/00 ,  G10H1/366 ,  G10H5/007 ,  G10H5/02 ,  G10H2210/281 ,  G10H2210/311 ,  G10H2210/325 ,  G10H2250/111 ,  H03H17/02 ,  H04S7/305

摘要： The implementation of modal processors, which involve the parallel combination resonant filters, may be costly for applications such as artificial reverberation that can require thousands of modes. In one embodiment, the input signal is decomposed into a plurality of subbands, the outputs of which are downsampled. In each downsampled band, resonant filters are applied at the downsampled sampling rate, and their output is upsampled and filtered to form the band output. In these and other embodiments, a feature of responses of the mode filters have been optimized to minimize an aspect of a residual error after a point in time.

公开(公告)号：US20230051509A1

公开(公告)日：2023-02-16

申请号：US17978900

申请日：2022-11-01

申请人： Jonathan Abel

发明人： Jonathan Abel

IPC分类号： G10K15/12

摘要： The implementation of modal processors, which involve the parallel combination resonant filters, may be costly for applications such as artificial reverberation that can require thousands of modes. In one embodiment, the input signal is decomposed into a plurality of subbands, the outputs of which are downsampled. In each downsampled band, resonant filters are applied at the downsampled sampling rate, and their output is upsampled and filtered to form the band output. In these and other embodiments, a feature of responses of the mode filters have been optimized to minimize an aspect of a residual error after a point in time.

公开(公告)号：US10019980B1

公开(公告)日：2018-07-10

申请号：US15201013

申请日：2016-07-01

申请人： Jonathan Abel

发明人： Jonathan Abel

IPC分类号： H03G3/00 ,  G10K15/12 ,  G01R23/00 ,  G10H1/36 ,  H03H17/02 ,  G10H5/00 ,  G10H1/12 ,  G10H5/02

CPC分类号： G10K15/12 ,  G01R23/00 ,  G10H1/125 ,  G10H1/366 ,  G10H5/007 ,  G10H5/02 ,  G10H2210/281 ,  G10H2210/311 ,  G10H2210/325 ,  G10H2250/111 ,  H03H17/02

摘要： A reverberator based on a room response modal analysis is adapted to produce distortion, pitch and time manipulation effects, as well as gated and iterated reverberation. An example “modal reverberator” is a parallel collection of resonant filters, with resonance frequencies and dampings tuned to the modal frequencies and decay times of the space or object being simulated. In one example, the resonant filters are implemented as cascades of heterodyning, smoothing, and modulation steps, forming a type of analysis/synthesis architecture. By applying memoryless nonlinearities to the modulating sinusoids, distortion effects are produced, including distortion without intermodulation products. By using different frequencies for the heterodyning and associated modulation operations, pitch manipulation effects are generated, including pitch shifting and spectral “inversion.” By resampling the smoothing filter output, the signal time axis is stretched without introducing pitch changes.

公开(公告)号：US20070274527A1

公开(公告)日：2007-11-29

申请号：US11838735

申请日：2007-08-14

申请人： Jonathan Abel

发明人： Jonathan Abel

IPC分类号： H04S3/00

CPC分类号： H04S1/002 ,  H04S3/00 ,  H04S2400/01

摘要： The invention is a crosstalk canceler wherein different frequency bands are canceled at different locations so as to allow greater listener movement about the “sweet spot” while maintaining effective crosstalk cancellation. A spectrally smooth canceler equalization is used, reducing artifacts for listeners away from the sweet spot and further enlarging the sweet spot. Finally, the canceler equalization is adapted to either the anticipated or the actual crosscoherence among the input channels, producing a natural equalization regardless of the input.

摘要翻译： 本发明是一种串扰消除器，其中不同频带在不同位置被取消，以便在维持有效的串扰消除的同时允许更大的收听者关于“甜蜜点”的移动。 使用光谱平滑的消除器均衡，减少远离甜点的听众的伪影，并进一步扩大甜蜜点。 最后，消除器均衡适应输入通道之间的预期或实际交叉相干，产生自然均衡，而与输入无关。