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7592533 |
Audio loop timing based on audio event information
An audio looping method and system that stores a segment of an audio signal and plays back the stored segment in a repeated loop. The beginning and the end of the audio segment are determined by...
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7462773 |
Method of synthesizing sound
There is provided a method of synthesizing a musical instrument digital interface (MIDI) having wave table support. The wave table sample information is modified based on the newly searched loop...
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7388144 |
Method and device for storing main information with associated additional information incorporated therein
To store main information with associated additional information incorporated therein, data constituting the additional information is divided into a plurality of small-size data pieces of, e.g.,...
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7102068 |
Waveform data analysis method and apparatus suitable for waveform expansion/compression control
Filtering is performed on original waveform to remove components of a predetermined frequency band from the waveform, and dividing positions of the original waveform data are determined on the...
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7020636 |
Storage-medium rental system
A storage-medium rental system includes a portable storage medium to be rented to the user, a portable semiconductor memory owned by the user, a rental-shop apparatus owned by the rental agent, and...
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6906695 |
Touch control apparatus and touch control method that can be applied to electronic instrument
A touch curve memory 110 stores therein a touch curve formed by velocity values corresponding to touch data generated by a keyboard device 20 . A correction coefficient generator 10 generates...
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6858790 |
Digital sampling instrument employing cache memory
A digital sampling instrument for multi-channel interpolatative playback of digital audio data stored in a waveform memory provides improved interpolation of musical sounds by use of a cache memory.
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6660923 |
Method for extracting the formant of a musical tone, recording medium and apparatus for extracting the formant of a musical tone
There are provided a power line spectrum extractor for extracting power line spectra of a waveform to be processed; a level interpolation controller for performing level interpolation control on...
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6410838 |
Musical sound signal synthesizer and method for synthesizing musical sound signals using nonlinear transformer
A musical sound signal synthesizer with a simple construction for synthesizing complex musical sound waveform signals including many harmonics in a peculiar form. A phase information generator 11 ...
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RE37422 |
Electronic musical instrument
An electronic musical instrument, which is configured to simulate one or more instruments, provides a sound source, a display unit and a control portion. Herein, under control of the control...
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6239345 |
Optimal looping for wavetable synthesis
In accordance with the present invention, a method and apparatus are provided wherein loop discontinuities are eliminated. In the case of amplitude discontinuities, the harmonic amplitudes...
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6195736 |
Method for paging software wavetable synthesis samples
Wavetables for a wavetable synthesizer are divided into nonpaged and paged segments. The nonpaged segments are page locked in system memory, so that the wavetable may beginning playing when...
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5998724 |
Tone synthesizing device and method capable of individually imparting effect to each tone to be generated
Basic tone waveform corresponding to a designated tone color and pitch is generated in each of a plurality of channels. Effect is imparted to the basic tone waveform in accordance with an algorithm...
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5952596 |
Method of changing tempo and pitch of audio by digital signal processing
A pitch/tempo converting apparatus is constructed for concurrently changing a tempo and a pitch of an audio signal according to tempo designation information and pitch designation information. In...
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5892170 |
Musical tone generation apparatus using high-speed bus for data transfer in waveform memory
A musical tone generation apparatus creates musical-tone-waveform samples based on waveform samples stored in a waveform memory by each sampling period. Herein, a high-speed bus such as a PCI bus...
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5872727 |
Pitch shift method with conserved timbre
An improved method for shifting the pitches of a tone is disclosed. It comprises: (a) subjecting a digitized original waveform to a whitening process using an all-zero filter (AZF) to obtain a...
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5831193 |
Method and device for forming a tone waveform by combined use of different waveform sample forming resolutions
The number of waveform samples per unit time, i.e., waveform sample forming resolution is variably set depending on characteristics of a tone to be generated, such as construction of harmonic...
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5817964 |
Electronic musical instrument and method for storing a plurality of waveform sampling data at a single address
Waveform memory (12) stores a plurality of consecutive waveform sampling value data at a single address. Even when some waveform sampling values are skipped in a process of reproducing a musical...
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5808222 |
Method of building a database of timbre samples for wave-table music synthesizers to produce synthesized sounds with high timbre quality
A method of building a database of timbre samples for music synthesizers is provided, which can help provide smooth transitions between adjacent looping waveforms in the looping segment of the...
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5792970 |
Data sample series access apparatus using interpolation to avoid problems due to data sample access delay
A data sample series access system including an interpolating section for obtaining, by interpolation, sound data at a timing indicated by a sound interpolation timing signal by using at least two...
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5789689 |
Tube modeling programmable digital guitar amplification system
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...
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5714702 |
Pedal controlling system and method of controlling pedal for recording and reproducing pedal action
A pedal controller monitors a damper pedal incorporated in an acoustic piano, and reduces the amount of music data information represented by digital pedal position signals through an anti-aliasing...
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5672836 |
Tone waveform production method for an electronic musical instrument and a tone waveform production apparatus
A method, for forming a repeated waveform that is employed for an electronic musical instrument, which includes the steps of: setting, as basic data, a loop top address, an initial value of a loop...
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5670728 |
Musical tone creating apparatus for electronic musical instrument
A pitch-asynchronous-type musical tone creating apparatus, provided for an electronic musical instrument, comprises at least a waveform memory, a low-pass filter and an interpolation section....
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5637821 |
Storing and interpolating means for a musical sound generating device
A musical sound generating device has a waveform memory to store musical sound waveform data to be read-out repeatedly between a loop-top address (integral address) and a loop-end address (integral...
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5559298 |
Waveform read-out system for an electronic musical instrument
An electronic musical instrument produces musical tones based on waveform data, while providing smooth changes between different timbres and at the same time avoiding reduction in the efficiency of...
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5532424 |
Tone generating apparatus incorporating tone control utliizing compression and expansion
A tone generator for an electronic musical instrument analyzes an original waveform signal to store results of analysis thereof into a memory. The results of the analysis read out from the memory...
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5466882 |
Method and apparatus for producing an electronic representation of a musical sound using extended coerced harmonics
A technique for digitally processing a counterpart of a musical sound first transforms a set of time-domain samples of the sound into frequency-domain counterparts, gradually coerces the...
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5442127 |
Waveform generation device having a memory for storing adjacent sample data in different data compression representations
A memory stores waveform sample data for plural sample points forming a given tone waveform, and one of the stored waveform sample data stored for every two adjacent sample points is expressed in...
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5432293 |
Waveform generation device capable of reading waveform memory in plural modes
Reading of a waveform memory is controlled and one of different processing is performed depending upon which of a first mode and a second mode has been designated. When the first mode has been...
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5426261 |
Musical tone control waveform signal generating apparatus utilizing waveform data parameters in time-division intervals
A musical tone control waveform signal generating apparatus is provided in order to generate a musical tone control waveform signal by which a musical tone generated from an electronic musical...
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5416264 |
Waveform-forming device having memory storing non-compressed/compressed waveform samples
A waveform-forming device has a waveform memory storing a plurality of blocks of waveform samples representative of a waveform of a musical tone. Each block is formed of at least one non-compressed...
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5412152 |
Device for forming tone source data using analyzed parameters
Tone waveform data is divided into plural data segments, so that frequency and magnitude of respective spectra contained therein are analyzed for each of the data segments. Analyzation parameters...
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5371315 |
Waveform signal generating apparatus and method for waveform editing system
The position of a connecting portion between waveforms can be arbitrarily set when a plurality of waveform data is obtained by changing pitch widths of stored external sound waveform data, when a...
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5367118 |
Digital pitch shifter for reading out pitch-shifted waveform data from a memory
Waveform data written in a RAM 2 base on write addresses is always read out as two waveform data from two read addresses 1 and 2 designated by a CPU 1, and two interpolation data 1 and 2 are...
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5365467 |
Signal processor for providing variable acoustic effect
A musical tone signal processor is included of a computation unit, a register, a controller and an interpolator, and imparts a variable acoustic effect to a musical tone signal. The computation...
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5363443 |
Differing frequency sine wave generation from a look-up table
Sine waves are generated by a port circuit processor of a telephone switching office by accessing a look-up table stored in a memory associated with the port circuit processor. Entries in the...
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5308917 |
Keyboard touch response setting apparatus
This invention discloses a touch response setting apparatus with which a player can rewrite a touch response curve for converting key touch data into tone generation tone level data. The touch...
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5298672 |
Electronic musical instrument with memory read sequence control
An electronic musical instrument utilizes a memory unit containing sampled values of waveforms stored in separately addressable memory locations. A first waveform address bus and a second waveform...
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5266734 |
Musical tone synthesizing apparatus performing high-speed non-linear operation
A musical tone synthesizing apparatus includes an excitation circuit, a resonator circuit, and a resampler. The excitation circuit generates an excitation signal, through a non-linear...
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5264657 |
Waveform signal generator
A parameter signal generator including a parameter generating information storing unit for storing parameter generating information necessary for generating a parameter signal, and a parameter...
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5262582 |
Musical tone generating apparatus for electronic musical instrument
The position of a connecting portion between waveforms can be arbitrarily set when a plurality of waveform data is obtained by changing pitch widths of stored external sound waveform data, when a...
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5252773 |
Tone signal generating device for interpolating and filtering stored waveform data
There are provided a waveform generating section for generating waveform sample data at a frequency corresponding a designated pitch, a coefficient generating section for generating n coefficients...
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5247130 |
Tone signal processing apparatus employing a digital filter having improved signal delay loop
A series of delay circuits are provided which receive tone signal sample data of plural channels supplied on a time shared basis, hold plural tone signal sample data of each channel and hold these...
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5246487 |
Musical tone control apparatus with non-linear table display
A musical tone control apparatus includes a sound source having a delay feedback synthesis circuit for forming musical tone signal by performing arithmetic processing of musical tone control data...
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5241124 |
Electronic musical instrument capable of controlling touch response based on a reference value
A desired offset value is set and difference between this offset value and touch data is obtained. A touch response control is performed in either of positive and negative directions. This...
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5218155 |
Tone signal processing apparatus for PCM waveform interpolation and filtering
A tone signal processing apparatus for time-divisionally reading out tone signal waveforms in units of different channels from a waveform memory for storing a plurality of kinds of tone signal...
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5194681 |
Musical tone generating apparatus
A tone generated by a tone source is converted to an electric signal and this electric signal is sampled. The converted digital data are stored in a first memory, and parts which are to become a...
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5173567 |
Musical tone generating apparatus with parameter controller for changing characteristics of musical tone signal
A musical tone generating apparatus is provided for an electronic musical instrument. The apparatus comprises a musical tone signal generating device and a parameter controller. The musical tone...
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5146834 |
Interpolating tone wave generator having truncated data
A tone generating apparatus comprises a wave memory, an address calculator, an interpolating circuit. In the wave memory is stored tone wave data of a single period to be repeatedly read out stored...
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