公开(公告)号：US08705769B2

公开(公告)日：2014-04-22

申请号：US12561095

申请日：2009-09-16

Applicant: Earl C. Vickers

Inventor： Earl C. Vickers

IPC: H04B1/00

CPC classification number: H04H60/04 ,  H04S5/00 ,  H04S2400/05

Abstract: A frequency-domain upmix process uses vector-based signal decomposition and methods for improving the selectivity of center channel extraction. The upmix processes described do not perform an explicit primary/ambient decomposition. This reduces the complexity and improves the quality of the center channel derivation. A method of upmixing a two-channel stereo signal to a three-channel signal is described. A left input vector and a right input vector are added to arrive at a sum magnitude. Similarly, the difference between the left input vector and the right input vector is determined to arrive at a difference magnitude. The difference between the sum magnitude and the difference magnitude is scaled to compute a center channel magnitude estimate, and this estimate is used to calculate a center output vector. A left output vector and a right output vector are computed. The method is completed by outputting the left output vector, the center output vector, and the right output vector.

Abstract translation: 频域上混合过程使用基于向量的信号分解和用于提高中心信道提取的选择性的方法。 所描述的上混合处理不执行显式的主/环境分解。 这降低了复杂度，提高了中心通道的质量。 描述了将双声道立体声信号上混为三声道信号的方法。 添加左输入向量和右输入向量以得到和大小。 类似地，确定左输入向量和右输入向量之间的差以达到差值。 总和大小和差值之间的差异被缩放以计算中心声道幅度估计，并且该估计用于计算中心输出矢量。 计算左输出向量和右输出向量。 该方法通过输出左输出矢量，中心输出矢量和右输出矢量来完成。

公开(公告)号：US08634578B2

公开(公告)日：2014-01-21

申请号：US12821870

申请日：2010-06-23

Applicant: Earl C. Vickers

Inventor： Earl C. Vickers

IPC: G10L19/00

CPC classification number: H03G9/025 ,  H04R3/04

Abstract: A multiband dynamics compressor implements a solution for minimizing unwanted changes to the long-term frequency response. The solution essentially proposes undoing the multiband compression in a controlled manner using much slower smoothing times. In this regard, the compensation provided acts more like an equalizer than a compressor. What is applied is a very slowly time-varying, frequency-dependent post-gain (make-up gain) that attempts to restore the smoothed long-term level of each compressor band.

Abstract translation: 多频段动态压缩器实现一种解决方案，以最大限度地减少对长期频率响应的不必要的变化。 该解决方案本质上提出以受控的方式使用更慢的平滑时间来撤销多频带压缩。 在这方面，提供的补偿比压缩机更像是均衡器。 应用的是一个非常缓慢的时变，频率依赖的后增益（补偿增益），试图恢复每个压缩机频带的平滑长期水平。

公开(公告)号：US20110320210A1

公开(公告)日：2011-12-29

申请号：US12821870

申请日：2010-06-23

Applicant: Earl C. Vickers

Inventor： Earl C. Vickers

IPC: G10L19/00

CPC classification number: H03G9/025 ,  H04R3/04

Abstract: A multiband dynamics compressor implements a solution for minimizing unwanted changes to the long-term frequency response. The solution essentially proposes undoing the multiband compression in a controlled manner using much slower smoothing times. In this regard, the compensation provided acts more like an equalizer than a compressor. What is applied is a very slowly time-varying, frequency-dependent post-gain (make-up gain) that attempts to restore the smoothed long-term level of each compressor band.

Abstract translation: 多频段动态压缩器实现一种解决方案，以最大限度地减少对长期频率响应的不必要的变化。 该解决方案本质上提出以受控的方式使用更慢的平滑时间来撤销多频带压缩。 在这方面，提供的补偿比压缩机更像是均衡器。 应用的是一个非常缓慢的时变，频率依赖的后增益（补偿增益），试图恢复每个压缩机频带的平滑长期水平。

公开(公告)号：US20110320209A1

公开(公告)日：2011-12-29

申请号：US12821858

申请日：2010-06-23

Applicant: Earl C. Vickers

Inventor： Earl C. Vickers

IPC: G06F17/00

CPC classification number: H03G9/025

Abstract: A multiband dynamics compressor implements a frequency-domain solution for addressing unwanted magnitude peaks which may occur at the crossover frequency (boundary) between two adjacent frequency bands. The solution proposes making slight adjustments to the frequency band boundary locations, for example on a frame-by-frame basis, in order to prevent a spectral peak in the input signal from being located midway between two frequency bands. The adjustment to the boundary location pushes the energy of the spectral peak substantially into one frequency band for compression.

Abstract translation: 多频段动态压缩器实现频域解决方案，用于寻址可能在两个相邻频带之间的交叉频率（边界）处发生的不必要的幅度峰值。 解决方案提出了对频带边界位置进行微调，例如逐帧地，以防止输入信号中的频谱峰位于两个频带之间的中间。 对边界位置的调整将频谱峰值的能量基本上推入一个频带用于压缩。

公开(公告)号：US20100296672A1

公开(公告)日：2010-11-25

申请号：US12561095

申请日：2009-09-16

Applicant: Earl C. Vickers

Inventor： Earl C. Vickers

IPC: H04B1/00

CPC classification number: H04H60/04 ,  H04S5/00 ,  H04S2400/05

Abstract: A frequency-domain upmix process uses vector-based signal decomposition and methods for improving the selectivity of center channel extraction. The upmix processes described do not perform an explicit primary/ambient decomposition. This reduces the complexity and improves the quality of the center channel derivation. A method of upmixing a two-channel stereo signal to a three-channel signal is described. A left input vector and a right input vector are added to arrive at a sum magnitude. Similarly, the difference between the left input vector and the right input vector is determined to arrive at a difference magnitude. The difference between the sum magnitude and the difference magnitude is scaled to compute a center channel magnitude estimate, and this estimate is used to calculate a center output vector. A left output vector and a right output vector are computed. The method is completed by outputting the left output vector, the center output vector, and the right output vector.

Abstract translation: 频域上混合过程使用基于向量的信号分解和用于提高中心信道提取的选择性的方法。 所描述的上混合处理不执行显式的主/环境分解。 这降低了复杂度，提高了中心通道的质量。 描述了将双声道立体声信号上混为三声道信号的方法。 添加左输入向量和右输入向量以得到和大小。 类似地，确定左输入向量和右输入向量之间的差以达到差值。 总和大小和差值之间的差异被缩放以计算中心声道幅度估计，并且该估计用于计算中心输出矢量。 计算左输出向量和右输出向量。 该方法通过输出左输出矢量，中心输出矢量和右输出矢量来完成。

公开(公告)号：US08903109B2

公开(公告)日：2014-12-02

申请号：US12821858

申请日：2010-06-23

Applicant: Earl C. Vickers

Inventor： Earl C. Vickers

IPC: H03G9/00 ,  H03G5/00 ,  H03G9/02

CPC classification number: H03G9/025

Abstract: A multiband dynamics compressor implements a frequency-domain solution for addressing unwanted magnitude peaks which may occur at the crossover frequency (boundary) between two adjacent frequency bands. The solution proposes making slight adjustments to the frequency band boundary locations, for example on a frame-by-frame basis, in order to prevent a spectral peak in the input signal from being located midway between two frequency bands. The adjustment to the boundary location pushes the energy of the spectral peak substantially into one frequency band for compression.

Abstract translation: 多频段动态压缩器实现频域解决方案，用于寻址可能在两个相邻频带之间的交叉频率（边界）处发生的不必要的幅度峰值。 解决方案提出了对频带边界位置进行微调，例如逐帧地，以防止输入信号中的频谱峰位于两个频带之间的中间。 对边界位置的调整将频谱峰值的能量基本上推入一个频带用于压缩。

公开(公告)号：US08532305B2

公开(公告)日：2013-09-10

申请号：US13401736

申请日：2012-02-21

Applicant: Earl C. Vickers

Inventor： Earl C. Vickers

IPC: H04R5/00

CPC classification number: H04S5/00 ,  H04S1/005 ,  H04S2420/07

Abstract: When two loudspeakers play the same signal, a “phantom center” image is produced between the speakers. However, this image differs from one produced by a real center speaker. In particular, acoustical crosstalk produces a comb-filtering effect, with cancellations that may be in the frequency range needed for the intelligibility of speech. Methods for using phase decorrelation to fill in these gaps and produce a flatter magnitude response are described, reducing coloration and potentially enhancing dialogue clarity. These methods also improve headphone compatibility and reduce the tendency of the phantom image to move toward the nearest speaker.

Abstract translation: 当两个扬声器播放相同的信号时，扬声器之间会产生“幻影中心”图像。 然而，这个图像与真正的中心扬声器产生的图像不同。 特别地，声学串扰产生梳状滤波效果，取消可能在语音的可懂度所需的频率范围内。 描述了使用相位去相关来填充这些间隙并产生较平坦幅度响应的方法，减少着色并潜在地增强对话清晰度。 这些方法还可以改善耳机兼容性，并减少幻影图像向最接近的扬声器移动的趋势。

公开(公告)号：US4475228A

公开(公告)日：1984-10-02

申请号：US325233

申请日：1981-11-27

Applicant: Earl C. Vickers

Inventor： Earl C. Vickers

IPC: G10K15/04 ,  G10H1/12 ,  G10L1/00

CPC classification number: G10H1/12

Abstract: A sound generator for use with microprocessor controlled amusement games includes a programmable sound generator and programmable filters. The programmable filters utilize duty-cycle-controlled resistors to provide analog filtering under microprocessor control. Resistor duty cycles are made variable over a wide range by means of aperiodic clocking signals.

Abstract translation: 用于微处理器控制娱乐游戏的声音发生器包括可编程声音发生器和可编程滤波器。 可编程滤波器利用占空比控制电阻在微处理器控制下提供模拟滤波。 电阻占空比通过非周期时钟信号在宽范围内变化。