公开(公告)号：US09913033B2

公开(公告)日：2018-03-06

申请号：US14292690

申请日：2014-05-30

申请人： Apple Inc.

发明人： Douglas S. Wyatt ,  Anthony J. Guetta

IPC分类号： G10H1/043 ,  G10H1/16 ,  H04R3/12 ,  H04R5/04

CPC分类号： H04R3/12 ,  H04R5/04 ,  H04R2499/11 ,  H04R2499/15

摘要： A system determines to use at least two independent renderers to render at least two output streams that are to be synchronized. The independent renderers are provided with a shared synchronization object when instructed to render the respective output stream. A time when all of the independent renderers can render a respective first buffer of the respective output stream is determined from the shared synchronization object. Rendering of the output streams utilizing the independent renderers is begun at the determined time. In this way, rendering of the output streams may be synchronized.

公开(公告)号：US09460698B2

公开(公告)日：2016-10-04

申请号：US14629051

申请日：2015-02-23

申请人： Toru Nakatani

发明人： Toru Nakatani

IPC分类号： G10H1/18 ,  G10H1/16 ,  G10H1/20 ,  G10H3/24 ,  G10H3/18

CPC分类号： G10H1/18 ,  G10H1/16 ,  G10H1/20 ,  G10H3/185 ,  G10H3/24 ,  G10H2230/095

摘要： A stringed instrument includes a body, a string, a string exciting device and a bridge. The body supports the string, the string exciting device and the bridge. The string has a scale length determined by a distance between a first support point and a second support point. The string exciting device is designed to be driven by an electrical signal having a certain frequency and vibrate the string by applying an excitation signal having a frequency corresponding to the frequency of the electrical signal. The bridge has the first support point and a surface located between the first support point and the second support point and designed to come into contact with the string during vibration of the string.

公开(公告)号：US09401684B2

公开(公告)日：2016-07-26

申请号：US14398368

申请日：2013-05-31

申请人： The University of North Carolina at Chapel Hill

发明人： Zhimin Ren ,  Hengchin Yeh ,  Ming Lin

IPC分类号： H03G5/00 ,  H03G3/00 ,  G10H1/10 ,  G10H1/16

CPC分类号： H03G3/00 ,  G10H1/10 ,  G10H1/16 ,  G10H2250/235 ,  G10H2250/435 ,  G10H2250/511

摘要： The subject matter described herein includes methods, systems, and computer readable media for synthesizing sounds using estimated material parameters. According to one aspect, a method for sound synthesis using estimated material parameters is provided. The method includes at a computing platform including a memory and a processor, estimating, by the processor and based on a recorded audio sample of an impact on a physical object, one or more material parameters of a physical object for use in synthesizing a sound associated with a virtual object having material properties similar to the physical object. The method further includes storing the one or more material parameters in memory. The method further includes using the estimated material parameters to generate a synthesize sound for the virtual object.

摘要翻译： 本文描述的主题包括用于使用估计的材料参数来合成声音的方法，系统和计算机可读介质。 根据一个方面，提供了一种使用估计材料参数进行声音合成的方法。 该方法包括在包括存储器和处理器的计算平台处，由处理器估计并基于对物理对象的影响的记录的音频样本，物理对象的一个​​或多个材料参数用于合成声音相关联 虚拟对象具有与物理对象类似的材料属性。 该方法还包括将一个或多个材料参数存储在存储器中。 该方法还包括使用估计的材料参数来生成虚拟对象的合成声音。

公开(公告)号：US08831762B2

公开(公告)日：2014-09-09

申请号：US13201757

申请日：2010-02-16

申请人： Takehiro Abe ,  Naoki Yasuraoka ,  Katsutoshi Itoyama ,  Hiroshi Okuno

发明人： Takehiro Abe ,  Naoki Yasuraoka ,  Katsutoshi Itoyama ,  Hiroshi Okuno

IPC分类号： G06F17/00 ,  G10H1/16 ,  G10L25/90 ,  G10L21/013

CPC分类号： G10H1/16 ,  G10H2210/066 ,  G10H2250/615 ,  G10L25/90 ,  G10L2021/0135

摘要： A system for timbral change, capable of changing timbres included in an existing music audio signal to arbitrary timbres. Replaced harmonic peak parameters are created by replacing a plurality of harmonic peaks included in harmonic peak parameters, which are stored in a separated audio signal analyzing and storing section 3 and indicate relative amplitudes of n-th order harmonic components of each tone generated by a musical instrument of a first kind, with harmonic peaks included in harmonic peak parameters, which are stored in a replacement parameter storing section 6 and indicate relative amplitudes of n-th order harmonic components of each tone generated by a musical instrument of a second kind and corresponding to each tone generated by the musical instrument of the first kind. A synthesized separated audio signal generating section 7 generates a synthesized separated audio signal for each tone using parameters other than the harmonic peak parameters and the replaced harmonic peak parameters.

摘要翻译： 一种用于音乐变化的系统，能够将现有音乐音频信号中包含的音色改变为任意音色。 通过替换存储在分离的音频信号分析和存储部分3中的谐波峰值参数中包括的多个谐波峰值并且指示由音乐产生的每个音调的n次谐波分量的相对幅度来创建替换的谐波峰值参数 包含在谐波峰值参数中的谐波峰值的仪器，其存储在替换参数存储部分6中，并且指示由第二类乐器产生的每个音调的n次谐波分量的相对振幅，并且对应于 对于由第一种乐器产生的每个音调。 合成分离音频信号生成部分7使用除了谐波峰值参数和替换的谐波峰值参数之外的参数，为每个音调产生合成的分离音频信号。

公开(公告)号：US08634568B2

公开(公告)日：2014-01-21

申请号：US12966729

申请日：2010-12-13

申请人： Itai Neoran ,  Meir Shashoua ,  Yoad Nevo

发明人： Itai Neoran ,  Meir Shashoua ,  Yoad Nevo

IPC分类号： G10K15/12 ,  G10H1/16

CPC分类号： H04H60/04 ,  G10H1/0091 ,  G10H2210/281 ,  G10H2250/061 ,  G10H2250/105 ,  G10H2250/111 ,  G10K15/12 ,  H04S7/305

摘要： A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces artificial reverberation, or synthesizes extra audio channels, such as surround channels. The circuit may include a transient reduction module and a reverberation filter. The transient reduction module may be adapted to reduce transients in an input audio signal of one or more channels. The reverberation filter maybe adapted to receive a transient-reduced signal of one or more channels corresponding to the transient-reduced signal.

摘要翻译： 用于为输入音频信号，单声道，立体声或环绕声产生人造环境效果的电路，方法和系统。 环境效果增强了人为的混响，替代人为的混响，或合成了额外的音频通道，如环绕声道。 该电路可以包括瞬态降低模块和混响滤波器。 瞬态降低模块可以适于减少一个或多个通道的输入音频信号中的瞬变。 混响滤波器可以适于接收对应于瞬态降低信号的一个或多个信道的瞬态降低信号。

公开(公告)号：US5802182A

公开(公告)日：1998-09-01

申请号：US759128

申请日：1996-12-02

申请人： Eric K. Pritchard

发明人： Eric K. Pritchard

IPC分类号： G10H1/16 ,  H03F1/32 ,  H04S1/00 ,  H03G3/00

CPC分类号： H03F1/327 ,  G10H1/16 ,  H03F1/3276 ,  H04S1/00

摘要： The audio process is a signal path having a plurality of filters connected or including distortion means. The prime example of this phenomenon surrounds inductances such as found in magnetic tape recorders, spring reverberators, and transformers. The inductors require a pre-emphasis filter to produce a constant current. Secondarily there are the complementary filters associated with the average spectrum of audio which are used to maximize the signal to noise ratio. Ideally the net response of the filters is flat, however, roll-offs at the audio extremes are quite common. The audio process distortion emulates the distortion of the active devices between the filters such as vacuum tube and magnet non-linearities. Since the distortion devices follow filters, the spectra of distortion is different than the frequency response.

摘要翻译： 音频处理是具有连接或包括失真装置的多个滤波器的信号路径。 这种现象的主要例子包括在磁带录音机，弹簧混响器和变压器中发现的电感。 电感器需要预加重滤波器来产生恒定电流。 其次，存在与用于使信噪比最大化的音频平均频谱相关联的互补滤波器。 理想情况下，滤波器的净响应是平坦的，然而在音频极端情况下的消除是相当普遍的。 音频过程失真模拟了诸如真空管和磁体非线性之类的滤波器之间的有源器件的失真。 由于失真器件遵循滤波器，失真的频谱与频率响应不同。

公开(公告)号：US5789689A

公开(公告)日：1998-08-04

申请号：US785004

申请日：1997-01-17

申请人： Michel Doidic ,  Michael Mecca ,  Marcus Ryle ,  Curtis Senffner

发明人： Michel Doidic ,  Michael Mecca ,  Marcus Ryle ,  Curtis Senffner

IPC分类号： G10H1/12 ,  G10H1/16 ,  G10H3/18 ,  H03F1/32 ,  H03G7/00 ,  G10H1/02 ,  G10H7/12 ,  H03F19/00 ,  H03M1/62

CPC分类号： G10H3/187 ,  G10H1/125 ,  G10H1/16 ,  H03F1/327 ,  H03G7/007 ,  G10H2210/231 ,  G10H2210/281 ,  G10H2210/311 ,  G10H2250/061 ,  G10H2250/105 ,  G10H2250/115 ,  G10H2250/545 ,  G10H2250/611 ,  H03F2200/549

摘要： An electric guitar amplifier which utilizes a digital signal processor to produce vacuum-tube-like distortion without certain unwanted audio artifacts created by previous digital realizations of nonlinear, high-gain functions. By virtue of a microprocessor-controlled digital signal processor embodiment, the invention gives the user programmable control over parameters normally associated with state of the art guitar amplifiers (e.g. tone controls, reverb controls, tremolo controls, etc.), as well as other musically useful parameters which are not normally included among the controls of a guitar amplifier (e.g. selection of preamp type, autovolume, reverberation type, autowah, etc.).

摘要翻译： 一种电吉他放大器，其利用数字信号处理器产生真空管状失真，而没有由先前的非线性高增益功能的数字实现产生的某些不需要的音频伪像。 凭借由微处理器控制的数字信号处理器实施例，本发明给予用户可编程控制通常与现有吉他放大器（例如音调控制，混响控制，颤音控制等）状态相关联的参数以及其它音乐 吉他放大器的控制中通常不包括有用的参数（例如，前置放大器类型，自动音量，混响类型，自动瓦等的选择）。

公开(公告)号：US5736665A

公开(公告)日：1998-04-07

申请号：US629107

申请日：1996-04-08

申请人： Akira Fukumoto ,  Takahiro Yamada ,  Hiroyoshi Komobuchi

发明人： Akira Fukumoto ,  Takahiro Yamada ,  Hiroyoshi Komobuchi

IPC分类号： G10H1/00 ,  G10H1/16 ,  G10H1/34 ,  G10H1/40 ,  G01H5/00

CPC分类号： G10H1/40 ,  G10H1/16 ,  G10H1/348 ,  G10H2210/076 ,  G10H2210/385

摘要： To present a holonic rhythm generator capable of generating rhythm following free changes by transmitting the intent of tempo change from the action of man to rhythm generator in real time, or, to the contrary, guiding the action rhythm of man gradually by the rhythm generator. To achieve the object, the device has a rhythm generator having such constitution described by a nonlinear vibration equation which is a van der Pol's formula a constant portion of which is replaced by a cubic expression, and a fixed rhythm generator and action rhythm detector for generating an input signal of the rhythm generator, in which a specific relation is given between the fixed rhythm generator and action rhythm detector.

摘要翻译： 通过将节奏变化的意图从人的动作实时传递到节奏发生器，呈现出能够通过自由变化产生节奏的全能节奏发生器，或者相反，由节奏发生器逐渐引导人的动作节奏。 为了实现该目的，该装置具有节奏发生器，其具有由非线性振动方程描述的结构，该非线性振动方程是van der Pol的公式，其恒定部分被立方体表示所代替，并且具有固定节律发生器和动作节律检测器，用于产生 节奏发生器的输入信号，其中在固定节奏发生器和动作节奏检测器之间给出特定关系。

公开(公告)号：US5734725A

公开(公告)日：1998-03-31

申请号：US394303

申请日：1995-02-24

申请人： Eric K. Pritchard

发明人： Eric K. Pritchard

IPC分类号： G10H1/16 ,  G10H3/18 ,  H03F1/32 ,  H03G7/00 ,  H03G3/00

CPC分类号： G10H1/16 ,  G10H3/187 ,  H03F1/327 ,  H03F1/3276 ,  H03G7/00 ,  H03G7/004 ,  H03F2200/549

摘要： This invention is an emulation of vacuum tube guitar amplifier with devices that emulate vacuum tube plate voltage and current characteristics. This amplifier system has a switching system for selecting preamplifiers and which alters the behavior of the output stage by changing features such as feedback and compression character. The preamplifier and output stages use non-linear means for the emulation of triode amplifiers, cathode followers, phase splitters, and pentode amplifiers. The features emulated are the grid conduction with scaling and offsetting, current gain, plate voltage and current characteristics, and compression.

摘要翻译： 本发明是真空管吉他放大器的仿真，其具有模拟真空管板电压和电流特性的装置。 该放大器系统具有用于选择前置放大器的切换系统，并且通过改变诸如反馈和压缩特性的特征来改变输出级的行为。 前置放大器和输出级使用非线性装置来仿真三极管放大器，阴极跟随器，相分离器和五极管放大器。 模拟的特征是具有缩放和偏移，电流增益，板电压和电流特性以及压缩的电网导通。

公开(公告)号：US5719345A

公开(公告)日：1998-02-17

申请号：US555979

申请日：1995-11-13

申请人： Iou-Din Jean Chen

发明人： Iou-Din Jean Chen

IPC分类号： G10H1/16 ,  G10H7/12 ,  G10H1/043 ,  G10H7/00

CPC分类号： G10H1/16 ,  G10H7/12 ,  G10H2250/161

摘要： An audio synthesis circuit is disclosed that incorporates a phase accumulator, adder, sinusoid computing circuit, feedback controller, modulation controller and output accumulator. The audio synthesis circuit generates harmonically complex audio tones, which are output from the sinusoid computing circuit via the output accumulator through the use of frequency modulation of the phase of the audio tones. Instead of feeding back the audio tone to modulate the current phase, the disclosed audio synthesis circuit feeds back the current phase, which is converted by the feedback controller into a scaled feedback factor generated through a process using a waveform computing circuit that, without log-linear conversion, computes a preset cyclical function at an argument equal to the current phase. The feedback factor is then added to the current phase to generate a modulated phase value. The audio synthesis circuit can be used in a time-multiplexed fashion so that multiple audio tones, or operators, can be computed in a single audio synthesis cycle and then combined to form voices/channels. Each audio synthesis cycle can be divided into as few as 0 or as many as 48 time slots, meaning that as many as 48 operators can be played simultaneously. The disclosed circuit provides a preset organization of the 48 operators into 12 2-operator channels and 6 4-operator channels. These channels can be played in various system modes, including backward-compatible 2- and 4-operator modes in which the programming of the operators is restricted, and an enhanced mode, in which the operators can be freely programmed.

摘要翻译： 公开了一种包括相位累加器，加法器，正弦运算电路，反馈控制器，调制控制器和输出累加器的音频合成电路。 音频合成电路通过使用音频音调的相位的频率调制，经由输出累加器产生谐波复杂音频音调，其由正弦运算电路输出。 所公开的音频合成电路代替反馈音频音调以调制当前相位，反馈由反馈控制器转换的当前相位，其为通过使用波形计算电路的处理产生的缩放反馈因子， 线性转换，在等于当前阶段的参数上计算预设的循环函数。 然后将反馈因子加到当前相位以产生调制相位值。 音频合成电路可以以时分复用的方式使用，使得可以在单个音频合成周期中计算多个音频音调或运算符，然后组合以形成语音/频道。 每个音频合成周期可以分为0个或多达48个时隙，这意味着同时可以播放多达48个运算符。 所公开的电路将48个运营商的预设组织提供到12个双运营商信道和6个4运营商信道中。 这些通道可以以各种系统模式进行播放，包括操作员编程受到限制的向后兼容的2和4操作员模式，以及可以自由编程操作员的增强模式。