Device for forming tone source data using analyzed parameters
First Claim
1. A tone source device comprising:
- memory means for storing analyzation parameters indicative of frequency and magnitude of respective spectra contained in each of plural frequency band areas of a predetermined audible reproduction region of plural data segments corresponding to a first tone waveform, said data segments being successive parts of the first tone waveform;
reading means for sequentially reading out the analyzation parameters for each of said data segments; and
synthesization means for, for each of said data segments, forming synthesized tone waveform data on the basis of the analyzation parameters read out from said memory means.
1 Assignment
0 Petitions
Accused Products
Abstract
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 indicative of the frequency and magnitude of the respective spectra for each said data segment which has been obtained through the analyzation is stored into a memory. The analyzation parameter for each data segment is sequentially read out from the memory, and the tone waveform data is reanalyzed on the basis of the read-out parameter. To control the frequency of a resulting tone, a data shift circuit may be provided which serves to shift the value of the frequency data contained in the analyzation parameters. Further, an interpolation circuit may be provided which performs interpolations between frequency data and/or magnitude data of respective spectra of a certain waveform, and frequency data and/or magnitude data of respective spectra of another waveform, so as to form frequency data and magnitude data of respective spectra of a new waveform.
-
Citations
44 Claims
-
1. A tone source device comprising:
-
memory means for storing analyzation parameters indicative of frequency and magnitude of respective spectra contained in each of plural frequency band areas of a predetermined audible reproduction region of plural data segments corresponding to a first tone waveform, said data segments being successive parts of the first tone waveform; reading means for sequentially reading out the analyzation parameters for each of said data segments; and synthesization means for, for each of said data segments, forming synthesized tone waveform data on the basis of the analyzation parameters read out from said memory means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
-
-
39. A tone source device comprising:
-
spectrum data supplying means for supplying frequency data and magnitude data indicative of frequency and magnitude of respective spectra contained in each of plural frequency band areas of a predetermined audible reproduction region making up a first tone waveform; spectrum envelope data supplying means for supplying spectrum envelope data of at least a second tone waveform; modification means for modifying the magnitude data of the respective spectra of the first tone waveform supplied by said spectrum data supplying means, using the spectrum envelope data of the second tone waveform supplied by said spectrum envelope data; and synthesization means for synthesizing new tone waveform data on the basis of the frequency data of the respective spectra of the first tone waveform supplied by said spectrum data supplying means and of the magnitude data of the respective spectra modified by said modification means. - View Dependent Claims (40, 41, 42)
-
-
43. A tone source device comprising:
-
spectrum data supplying means for supplying frequency data and magnitude data indicative of frequency and magnitude of respective spectra contained in each of plural frequency band areas of a predetermined audible reproduction region making up a first tone waveform; memory means for storing spectrum ratio envelope data indicative of a ratio of a spectrum envelope of a second tone waveform relative to a spectrum envelope of the first tone waveform, modification means for modifying the magnitude data of the respective spectra of the first tone waveform supplied from said spectrum data supplying means, by the spectrum ratio envelope data stored in said storage means, and synthesization means for forming new synthesized tone waveform data on the basis of the frequency data of the respective spectra of the first tone waveform supplied by said spectrum data supplying means and the magnitude data of the respective spectra modified by said modification means.
-
-
44. A method for synthesizing a tone comprising steps of:
-
analyzing frequency and magnitude of respective spectra contained in each of plural frequency band areas of a predetermined audible reproduction region contained in a given waveform for each of plural data segments that correspond to successive parts of the waveform; storing analyzation parameters indicative of frequency and magnitude of the respective spectra for each of the data segments which are obtained through analyzation of said analyzing step; reading out the stored analyzation parameters for each of said data segments in accordance with lapse of time, and forming, for each of said data segments, synthesized tone waveform data on the basis of the read-out analyzation parameters.
-
Specification