JPH10116082A5 - - Google Patents

Description

[0005]
[Means for solving the problem]
In order to solve the above-mentioned problems, one form of a waveform generating device according to the present invention comprises waveform storage means for storing waveform data, performance information input means for inputting performance information specifying the start/end and pitch of playback of the waveform data, and waveform readout means for reading out the waveform data from the waveform storage means at a pitch corresponding to the performance information inputted from the performance information input means, wherein the waveform readout means is configured so that, during reading of waveform data started in response to earlier performance information inputted from the performance information input means, when later performance information is input and playback start is specified, the waveform readout means reads out the portion of the waveform data from the timing at which the later performance information was inputted at a pitch corresponding to the later performance information. In a waveform generating device configured in this way, when later performance information is input, the waveform that was previously played back is played back at a pitch corresponding to the later performance information from the time of input of the later performance information, thereby producing a new performance effect.

[0006]
In another embodiment, the waveform generating device of the present invention comprises waveform storage means for storing waveform data, performance information input means for inputting performance information indicating the start/end and pitch of playback of the waveform data, and waveform reading means for reading out the wave and buoyancy data from the waveform storage means at a pitch corresponding to the performance information input from the performance information input means, wherein when later performance information is input and playback start is instructed during reading of waveform data started in accordance with earlier performance information input by the performance information input means, the waveform reading means is configured to, following the reading of waveform data based on the earlier performance information up to that point, read out the portion of the waveform data from the timing when the later performance information was input at a pitch corresponding to the later performance information, in parallel with reading out the stored waveform data at the pitch corresponding to the earlier performance information. In a waveform generating device configured in this manner, when subsequent performance information is input, the waveform that has been reproduced based on the previous performance information continues to be reproduced at the same pitch thereafter, and in parallel with this, from the time of input of the subsequent performance information, the waveform being reproduced from the time of input of the subsequent performance information onward is reproduced at a pitch corresponding to the subsequent performance information, thereby obtaining a new performance effect.

[0007]
Each of the above-mentioned waveform generating devices includes a time information generating means for generating time information representing changes on a time axis, and the waveform reading means can be configured to read out waveform data at a constant speed in accordance with the temporal changes corresponding to the time information generated by the time information generating means, regardless of the pitch at which the waveform data is read out. In this way, in the waveform generating device of the first embodiment, even though the pitch of the earlier performance information differs from the pitch of the later performance information, the time for reproducing waveform data can always be the same. Furthermore, in the waveform generating device of the second embodiment, after the input of the later performance information, waveforms are reproduced for multiple notes, but the waveform reproduction for each note always ends at the same time, eliminating any sense of incongruity.
In another embodiment, the waveform generating device of the present invention comprises input means for inputting waveform data, waveform storage means for sequentially storing the waveform data, pitch detection means for detecting the pitch of the waveform data, performance information input means for inputting performance information indicating the start/end of playback and pitch of the waveform data, formant modification information generation means for generating formant modification information for the waveform data from the performance information input by the performance information input means, phoneme segment extraction means for reading out desired sections of the waveform data stored in the waveform storage means at a readout speed corresponding to the formant modification information and extracting phonemes, and waveform read-out synthesis means for reading out the extracted phonemes at a period corresponding to the pitch of the performance information and synthesizing them, wherein the waveform read-out synthesis means is configured so that, during reading of waveform data initiated in accordance with earlier performance information input by the performance information input means, when later performance information is input and playback start is instructed, the waveform read-out synthesis means reads out a portion of the waveform data from the timing at which the later performance information was input at a pitch corresponding to the later performance information.
In another embodiment, the waveform generating device of the present invention comprises input means for inputting waveform data, waveform storage means for sequentially storing the waveform data, pitch detection means for detecting the pitch of the waveform data, performance information input means for inputting performance information indicating the start/end of playback of the waveform data and the pitch, formant modification information generation means for generating formant modification information for the waveform data from the performance information input means, and phoneme segment extraction means for reading out a desired section of the waveform data stored in the waveform storage means at a readout speed corresponding to the formant modification information and extracting phonemes. and a waveform reading and synthesizing means for reading and synthesizing the extracted phonemes at a period corresponding to the pitch of the performance information, wherein when subsequent performance information is input and playback start is instructed during reading of waveform data started in accordance with previous performance information input by the performance information input means, the waveform reading and synthesizing means is configured to, following the reading of waveform data based on the previous performance information up to that point, read out the portion of the waveform data from the timing when the subsequent performance information was input at the pitch corresponding to the subsequent performance information, in parallel with reading out stored waveform data at the pitch corresponding to the previous performance information.
Furthermore, each of the above-mentioned waveform generating devices may be configured to include a time information generating means for generating time information representing changes on a time axis, and the waveform readout/synthesis means may be configured to read out the waveform data at a constant speed in accordance with the temporal changes corresponding to the time information of the time information generating means, regardless of the pitch at which the waveform data is read out.
Furthermore, each of the waveform generating devices described above can be configured so that the phoneme segment cutting means is phoneme segment cutting means that reads out two periods of waveform data stored in the waveform storage means at a readout speed corresponding to the formant modification information and cuts out phoneme segments.

Claims (7)

a waveform storage means for storing waveform data;
a performance information input means for inputting performance information instructing the start/end of playback of the waveform data and the pitch;
a waveform reading means for reading out the waveform data from the waveform storage means at a pitch corresponding to the performance information input from the performance information input means,
The waveform reading means
When subsequent performance information is input and a playback start instruction is given during the reading of waveform data started in response to the previous performance information input by the performance information input means, the waveform generating device is configured to read out the portion of the waveform data after the timing at which the subsequent performance information is input at a pitch corresponding to the subsequent performance information. a waveform storage means for storing waveform data;
a performance information input means for inputting performance information instructing the start/end of playback of the waveform data and the pitch;
a waveform reading means for reading out the wave data from the waveform storage means at a pitch corresponding to the performance information input from the performance information input means,
The waveform reading means
When subsequent performance information is input and a playback start instruction is issued during the reading of waveform data started in response to the previous performance information input by the performance information input means, the waveform generating device is configured to read out the portion of the waveform data from the timing when the subsequent performance information is input at the pitch corresponding to the subsequent performance information, following the reading of the waveform data according to the previous performance information up to that point, at the pitch corresponding to the subsequent performance information, in parallel with the reading of stored waveform data at the pitch corresponding to the previous performance information. a time information generating means for generating time information representing a change on a time axis;
The waveform reading means
3. A waveform generating device according to claim 1, wherein the waveform data is read at a constant speed in accordance with a time change corresponding to the time information of said time information generating means, regardless of the pitch at which the waveform data is read. an input means for inputting waveform data;
a waveform storage means for sequentially storing the waveform data;
a pitch detection means for detecting the pitch of the waveform data;
a performance information input means for inputting performance information instructing the start/end of playback of the waveform data and the pitch;
formant modification information generating means for generating formant modification information for the waveform data from the performance information input by the performance information input means;
a speech segment extracting means for extracting speech segments by reading out a desired section of the waveform data stored in the waveform storage means at a readout speed corresponding to the formant modification information;
a waveform reading and synthesizing means for reading and synthesizing the extracted speech segments at a period corresponding to the pitch of the performance information,
The waveform readout/synthesis means
When subsequent performance information is input and a playback start instruction is given during the reading of waveform data started in response to the earlier performance information input by the performance information input means, the waveform generating device is configured to read out the portion of the waveform data after the timing at which the later performance information is input at a pitch corresponding to the later performance information. an input means for inputting waveform data;
a waveform storage means for sequentially storing the waveform data;
a pitch detection means for detecting the pitch of the waveform data;
a performance information input means for inputting performance information instructing the start/end of playback of the waveform data and the pitch;
formant modification information generating means for generating formant modification information for the waveform data from the performance information input by the performance information input means;
a speech segment extracting means for extracting speech segments by reading out a desired section of the waveform data stored in the waveform storage means at a readout speed corresponding to the formant modification information;
a waveform reading and synthesizing means for reading and synthesizing the extracted speech segments at a period corresponding to the pitch of the performance information,
The waveform readout/synthesis means
When subsequent performance information is input and a playback start instruction is issued during the reading of waveform data started in response to the previous performance information input by the performance information input means, the waveform generating device is configured to read out the portion of the waveform data from the timing when the subsequent performance information is input at the pitch corresponding to the subsequent performance information, following the reading of the waveform data according to the previous performance information up to that point, at the pitch corresponding to the subsequent performance information, in parallel with the reading of stored waveform data at the pitch corresponding to the previous performance information. a time information generating means for generating time information representing a change on a time axis;
The waveform readout/synthesis means
6. A waveform generating device according to claim 4, wherein the waveform data is read out at a constant speed in accordance with a time change corresponding to the time information of said time information generating means, regardless of the pitch of the sound from which the waveform data is read out. The phoneme segmentation means
7. A waveform generator according to claim 4, 5 or 6, further comprising speech segment extracting means for extracting speech segments by reading two periods of waveform data stored in said waveform storage means at a readout speed corresponding to said formant modification information.