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Method for improving effective chord based on MIDI

A technology of chords and notes, applied in the field of removing invalid polyphony based on MIDI technology, can solve problems such as waste of resources, insufficient use, loss of sounds, etc., and achieve the effect of saving memory usage, reducing the burden on the CPU, and reducing the probability of loss of sounds

Active Publication Date: 2010-10-13
ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] 3. If no vacancy can be found, the new note will be abandoned. At this time, the so-called "lost tone" phenomenon will occur;
As a result, there may be too many pairs of polyphony that hardly affect the overall effect, resulting in serious waste of resources
In the traditional MIDI synthesis method, if many of the sounds that appear are long-lasting instruments like strings, it will soon encounter a situation that is not enough, that is, the sound is often lost

Method used

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  • Method for improving effective chord based on MIDI
  • Method for improving effective chord based on MIDI
  • Method for improving effective chord based on MIDI

Examples

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Embodiment Construction

[0035] Such as image 3 , as a short piece of common music accompaniment score, using the professional Roland company's soft sound source HyperCanvas to play the piece, it can be seen from the piece that as the music progresses, it can rise to 7 polyphony. Let's analyze this score. The seven notes in the picture are numbered from 1 to 7 from left to right, of which 2 and 6 are notes of the same pitch, 3 and 5 are the same, and 4 and 7 are the same; in real physical instruments In fact, there are only four different notes ringing from the beginning to the end of this piece of music, and only four different strings are vibrating. The traditional synthesizer ignores this situation, and there will be 7 polyphony for the above passage, which is not only It is a waste of computing resources, and it is unrealistic, so even if the traditional MIDI piano uses G samples, it does not sound real, which is largely related to this processing method.

[0036] Adopt the method of the present...

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Abstract

This invention discloses a method for increasing effective chord based on the MIDI including the following steps: 1. opening the notes, 2. browsing the current complete complex-tone group to judge void, 3.if there voids, then the positions are registered to search for the notes in conformity with the current notes in the group then to mark it ' forced releasing' complex tone, 4. judging if the browsing is finished, if so, new notes are opened, if not, the next complex tone is browsed and judged if it is a forced releasing one, then samples and envelopes of said complex tones are computed, 5, repeating step 4 till all complex tone group are browsed.

Description

technical field [0001] The invention relates to a method for improving effective chords based on MIDI, in particular to a method for removing invalid polyphony and improving effective chords based on MIDI technology. Background technique [0002] MIDI (Musical Instrument Digital Interface) is an interface that specifically refers to the connection between processing units and music equipment, or it is a kind of interface developed to establish a connection between electronic musical instruments or between electronic musical instruments and computers. a common protocol. [0003] MIDI does not digitally sample and encode the waveform of music, but records the playing process of the instrument, such as which key is pressed, how hard it is, how long it takes, and so on. When the piece of music needs to be played, according to a group of recorded orderly performance instructions, the music sound wave is generated by the music synthesizer, and is played out by the loudspeaker aft...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10H1/00G10H1/38
Inventor 冯穗豫
Owner ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD
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