Sound source circuit and telephone terminal comprising thereof
AssigneeYamaha Corporation
InventorsKiyoshi Yamaki, Shinji Otaki
Life of this patent
Estimating the term…
Abstract
A sound source circuit is provided for a telephone terminal to reproduce chorus-effect imparted musical tones as incoming call sound or hold sound. Herein, original musical tone data ωc1 are slightly modified in pitches to produce musical tone data ωc2 with respect to a prescribed tone color. These musical tone data are periodically selected and synthesized together to form musical tone signals having a chorus effect, based on which the chorus-effect imparted musical tones be reproduced for the telephone terminal such as a portable telephone.
Claims10
A sound source circuit comprising:
- a conversion means for converting first musical tone data given from an external to second musical tone data that slightly differs from the first musical tone data in value;
- a selection means for alternately selecting the first musical tone data and the second musical tone data;
- and
- a musical tone signal formation means for forming musical tone signals based on the first or second musical tone data that is selected by the selection means.
A sound source circuit comprising:
- a data processing means for alternately performing a first process to directly transfer first musical tone data given from an external and a second process to convert the first musical tone data to second musical tone data that slightly differs from the first musical tone data in value;
- and
- a musical tone signal formation means for forming musical tone signals based on the first or second musical tone data that is alternately processed by the data processing means.
A sound source circuit comprising:
- a conversion means for converting first musical tone data given from an external to second to n-th musical tone data (where ‘n’ denotes an integral number arbitrarily selected), each of which slightly differs from the first musical tone data in value;
- a selection means for sequentially selecting and outputting the first to n-th musical tone data;
- and
- a musical tone signal formation means for forming musical tone signals based on the first to n-th musical tone data that are sequentially and selectively output from the selection means.
A telephone terminal that generates incoming call sound upon receipt of an incoming call by a communicator, comprising:
- a storage means for storing musical tone data representing musical tones having a prescribed tone color as the incoming call sound;
- a control means for upon receipt of an incoming call, sequentially reading the musical tone data from the storage means;
- a sound source circuit for forming musical tone signals based on the musical tone data read by the control means;
- and
- a musical tone generation means for generating the incoming call sound corresponding to the musical tones based on the musical tone signals,
- wherein the sound source circuit forms the musical tone signals based on at least the musical tone data and pitch-modified musical tone data that is slightly modified in pitch compared with the musical tone data.
A telephone terminal comprising:
- a storage means for storing musical tone data representing musical tones having a prescribed tone color as hold sound;
- a control means for upon receipt of a hold sound generation instruction, sequentially reading the musical tone data from the storage means;
- a sound source circuit for forming musical tone signals based on the musical tone data read by the control means;
- and
- a musical tone generation means for generating the hold sound corresponding to the musical tones based on the musical tone signals,
- wherein the sound source circuit forms the musical tone signals based on at least the musical tone data, and pitch-modified musical tone data that is slightly modified in pitch compared with the musical tone data.
A sound source circuit applicable to a telephone terminal to reproduce musical tones, comprising:
- a first musical tone data provider for providing first musical tone data with respect to a prescribed tone color;
- a second musical tone data provider for providing second musical tone data that is slightly modified in pitch compared with the first musical tone data;
- a periodic selector for periodically selecting either the first musical tone data or the second musical tone data by each prescribed period;
- and
- a synthesizer for synthesizing the first and second musical tone data periodically selected by the periodic selector to form musical tone signals having a chorus effect, based on which chorus-effect imparted musical tones be generated by the telephone terminal.
Dependencies are inferred from the claim text.