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公开(公告)号：US4484508A
公开(公告)日：1984-11-27
申请号：US464673
申请日：1983-02-07
申请人： Carl-Ernst Nourney
发明人： Carl-Ernst Nourney
摘要： A musical instrument with a plurality of vibratile tone generators, whose oscillations are converted into alternating currents by electroacoustic transducers, is provided with a control circuit feeding back a regenerative vibratory signal of progressively diminishing amplitude to maintain the oscillations of a previously activated tone generator for a selected fade-out period. The duration of the fade-out period can be controlled by the player, e.g. with the aid of a pedal, by varying the time constant of a peak-storage network connected to the feedback loop. The feedback signal may be transmitted to the respective tone generator by a mechanical vibrator attached to the instrument body or by sound waves emitted from a loudspeaker. The player may also switch from the output of the peak-storage network to a constant control signal for sustained reverberation.
摘要翻译： 具有多个振动音调发生器的乐器，其振荡通过电声换能器转换为交流电流，设置有控制电路，其反馈逐渐减小振幅的再生振动信号，以维持先前激活的音调发生器的振荡 选择淡出期。 淡出时间的持续时间可以由玩家控制，例如， 借助于踏板，通过改变连接到反馈回路的峰值存储网络的时间常数。 反馈信号可以通过附接到仪器主体的机械振动器或从扬声器发出的声波传输到相应的音调发生器。 播放器还可以从峰值存储网络的输出切换到用于持续混响的恒定控制信号。
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公开(公告)号：US4418598A
公开(公告)日：1983-12-06
申请号：US335985
申请日：1981-12-30
申请人： Scott S. Klynas
发明人： Scott S. Klynas
CPC分类号： G10H3/146 , G10H2220/525 , G10H2230/281 , Y10S84/12
摘要： An electronic percussion synthesizer is disclosed which includes a plurality of pressure transducers, each representing a different percussive musical instrument. Each transducer is responsive to an external striking force for generating analog pulses, each pulse representing one beat of the respective musical instrument. The transducers are mounted to a synthesizer housing in a manner which mechanically isolates the transducers from each other. Sound signal generating circuits are provided which are responsive to the analog pulses for generating sound signals comprising the beat of the respective musical instrument. The amplitude of the signal representing each beat is proportional to the magnitude of the force used to generate the respective analog pulse. The synthesizer also includes storage and playback circuitry for digitally storing a series of pulses, each pulse representing a percussive beat; for playing back the stored pulses; and for storing additional pulses in an interleaving manner.
摘要翻译： 公开了一种电子打击乐合成器，其包括多个压力换能器，每个压力换能器代表不同的打击乐器。 每个换能器响应于用于产生模拟脉冲的外部击打力，每个脉冲表示相应乐器的一个拍子。 传感器以将机械地隔离换能器的方式安装到合成器壳体上。 提供声音信号发生电路，其响应于模拟脉冲，用于产生包括相应乐器的节拍的声音信号。 表示每个节拍的信号的振幅与用于产生各个模拟脉冲的力的大小成正比。 合成器还包括用于数字存储一系列脉冲的存储和重放电路，每个脉冲表示冲击波; 用于播放存储的脉冲; 并用于以交错方式存储附加脉冲。
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公开(公告)号：US2755697A
公开(公告)日：1956-07-24
申请号：US27014552
申请日：1952-02-06
发明人： MIESSNER BENJAMIN F
IPC分类号： G10H3/12
CPC分类号： G10H3/12 , Y10S116/18
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公开(公告)号：US11830464B2
公开(公告)日：2023-11-28
申请号：US17133444
申请日：2020-12-23
申请人： Roland Corporation
发明人： Hiroyuki Yokoyama
CPC分类号： G10H1/0066 , G10H1/0008 , G10H3/125 , H04W56/001 , H04W68/005 , H04W68/12 , H04W76/14 , H04W84/20 , G10H2210/066 , G10H2240/031 , G10H2240/305
摘要： A wireless communication device and a wireless communication method are provided. When a master mode is set in a mode memory, a mode setting notification is transmitted to a different wireless communication device. When a mode setting permission notification for the mode setting notification is received from the different wireless communication device, the master mode is settled as a communication mode, and the master mode is set in the mode memory. When a slave mode is set in the mode memory and when a mode setting notification is received from the different wireless communication device, the slave mode is settled as the communication mode, the slave mode is set in the mode memory, and a mode setting permission notification is transmitted to the different wireless communication device. Thus, the communication mode can be automatically set in a pair of wireless communication devices.
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56.发明公开公开(公告)号：US20230368761A1
公开(公告)日：2023-11-16
申请号：US18357526
申请日：2023-07-24
发明人： Zafar Rafii
CPC分类号： G10H3/125 , G10H1/06 , G10H2250/221 , G10H2250/235 , G10H2210/056
摘要： Methods and apparatus to extract a pitch-independent timbre attribute from a media signal are disclosed. An example apparatus includes an audio characteristic extractor to determine a logarithmic spectrum of an audio signal; transform the logarithmic spectrum of the audio signal into a frequency domain to generate a transform output; determine a magnitude of the transform output; and determine a timbre attribute of the audio signal based on an inverse transform of the magnitude.
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57.发明申请公开(公告)号：US20200219473A1
公开(公告)日：2020-07-09
申请号：US16821567
申请日：2020-03-17
发明人： Zafar Rafii
摘要： Methods and apparatus to classify media based on a pitch-independent timbre attribute from a media signal are disclosed. An example apparatus includes means for accessing a media signal; and means for: determining a spectrum of audio corresponding to the media signal; and determining a timbre-independent pitch attribute of audio of the media signal based on an inverse transform of a complex argument of a transform of the spectrum.
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58.发明申请公开(公告)号：US20200051538A1
公开(公告)日：2020-02-13
申请号：US16659099
申请日：2019-10-21
发明人： Zafar Rafii
摘要： Methods and apparatus to classify media based on a pitch-independent timbre attribute from a media signal are disclosed. An example apparatus includes an interface to access a media signal; and an audio characteristic extractor to determine a spectrum of audio corresponding to the media signal; and determine a timbre-independent pitch attribute of the audio based on an inverse transform of a complex argument of a transform of the spectrum.
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公开(公告)号：US20200043454A1
公开(公告)日：2020-02-06
申请号：US16597344
申请日：2019-10-09
发明人： Brian Smith , Paul Davey
摘要： With reference to FIG. 7a the present invention relates to transducer apparatus (200) for use with a reed instrument (201) having an air chamber (15) forming a resonant cavity whose resonance characteristics are controlled by opening and closing of tone holes (17A, 17B) connecting the air chamber to the exterior of the reed instrument. The transducer apparatus comprises attachment means (202) for releasably securing the transducer apparatus to a mouthpiece (201) of the reed instrument in place of a reed. A reed replacement section (203) has a housing with an abutment surface for abutting a surface part of the mouthpiece which would be abutted by a reed secured to the mouthpiece. An air passage extends through the housing of the reed replacement section (203) from an air inlet (211) through which a player of the instrument can blow to an air outlet (213) through which air blown by the player is delivered to atmosphere, without passing through the air chamber (15) within the reed instrument. A speaker (208) is supported by the housing and delivers sound to the air chamber (15). An air chamber microphone (209) is supported by the housing and receives sound in the air chamber (15). An electronic processing unit (204) has: an excitation unit (101) which produces an excitation signal for driving the speaker (208); a processor (102) for receiving a measurement signal produced by the microphone and for detecting from the measurement signal a musical note played by the instrument; a synthesizer (220) for generating an electronic signal embodying a musical note which corresponds to the detected musical note; and output means (103) for transmitting the musical note generated by the synthesizer to a receiver external of the transducer apparatus. The invention also relates to a system for representing the sounds of a reed instrument having the components of the transducer apparatus, to an electronic system for determining a musical note played by a reed instrument having the components of the transducer apparatus and to a method of practising playing of a reed instrument comprising use of the components of the transducer apparatus.
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公开(公告)号：US10540950B2
公开(公告)日：2020-01-21
申请号：US16063246
申请日：2016-12-15
申请人： In8Beats Pty Ltd
摘要： Provided is an electrophonic chordophone system (20) comprising sensor (24) configured to be operatively responsive to respective strings of a guitar (22). The system (20) also includes non-transitory processor-readable storage means (26) which contains first and second user-configurable tonal formats (28) and (30). Also included is processor (32), arranged in signal communication with the sensor (24) and storage means (26), and adapted to associate a melody group of notes producible by the strings with the first tonal format (28) in a one-to-one mapping or direct correlation, and to associate a control group of notes producible by the strings with the second tonal format (30) in a one-to-many mapping or indirect correlation. Also included is a synthesiser (34), arranged in signal communication with the processor (32), and configured to produce both the first and second tonal formats simultaneously in substantial real-time. The first tonal format (28) is actuatable via the melody group of notes and the second tonal format (30) is dynamically selectable via the control group of notes and also actuatable via the melody group of notes. In this manner, a melody is producible via the first tonal format (28) with a dynamic backing track producible via the second tonal format (30), all using one guitar (22).
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