Method for implementing simultaneous playing of MIDI music and sound effect by MIDI synthesizer

Abstract

This invention discloses one MIDI synthesizer to play MIDI music and music effect at same time, which divide the affair with more sustaining play time than the pre-set affair into multiple affairs; tosend the divided and undivided affairs to the MINI synthesizer. This invention method can reduce the sound effect playtime.

Description

technical field [0001] The invention relates to the sound playing technology of a MIDI synthesizer, in particular to a method for realizing the simultaneous playing of MIDI music and sound effects by a MIDI synthesizer. Background technique [0002] At present, many electronic devices use MIDI synthesizer chips to play MIDI music and sound effects, such as: mobile phones play music ringtones or button sound effects or game sound effects, and computers play music or game sound effects. [0003] see figure 1 , figure 1 It is a schematic diagram of the structure and connection relationship of the MIDI synthesizer in the prior art. Wherein, the processor 100 of the electronic device sends MIDI data or sound effect event (Effect Event) or PCM sound data (generally WAVE file) to the event first-in-first-out memory (Event FIFO) 111 or command FIFO in the MIDI synthesizer 110 respectively. (Command FIFO) 112 or data flow FIFO (Stream FIFO) 113. [0004] The data of a MIDI song c...

AI Technical Summary

Problems solved by technology

Though interpreter 114 first explains and executes the Event in CommandFIFO 112, if MIDI Event is relatively long with respect to the time of last Event or the playback duration indicated in Note Off Event is longer, the explanation execution of Event can be in blocked state, affects In the processing of Event in Command FIFO112, there may be delayed playback of sound and sound effects, which makes the real-time performance of sound playback poor

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