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Method and apparatus for realizing synthesized playing of MIDI file and digital waveform audio file

A technology of digital waveform and audio files, applied in the direction of instruments, electroacoustic musical instruments, etc., can solve the problem that MIDI files and digital waveform audio files cannot be synthesized and played.

Inactive Publication Date: 2010-05-26
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Although currently, electronic devices with sound functions such as mobile phones can provide the function of playing digital waveform audio files such as MIDI or MP3 independently, but MIDI files and MP3 files are two separate files in different formats, so MIDI files cannot be combined at present. Synthesize with digital waveform audio files for playback

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  • Method and apparatus for realizing synthesized playing of MIDI file and digital waveform audio file
  • Method and apparatus for realizing synthesized playing of MIDI file and digital waveform audio file
  • Method and apparatus for realizing synthesized playing of MIDI file and digital waveform audio file

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0042] In the present invention, the method and device for synthesizing and playing MIDI files and digital waveform audio files synthesize MIDI files and digital waveform audio files into mixed audio files. The MIDI commands and MIDI commands are sorted, and the pseudo MIDI commands and MIDI commands are output to the sound unit for playback according to the sorted order.

[0043] The method of the present invention is suitable for synthesizing and playing multiple digital wave audio files such as MIDI and MP3, WAV, WMA, etc., wherein the MP3 audio file is currently the most widely used audio file in electronic equipment with a sounding function. The following will take the composite playback of MIDI files and MP3 files as an example to describe in deta...

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Abstract

The invention discloses a method for synthetic broadcast the MIDI file and the digital wave form audio file, which comprises: A encoding the digital wave form audio files to a fake MIDI order according to MIDI order form and makes the fake MIDI order correspondent with the digital wave form audio file data and mark them; after marking the order of the MIDI file, storing fake MIDI order and the digital wave form data to a MIDI / digital wave form mix audio file; B ascertaining the time shaft when playing the mix audio file, then reading the MIDI order, the fake MIDI order and the digital wave form data according to the different marks and arranging the MIDI order and the fake MIDI order according to the time shaft; C arranging them in order and sending the MIDI order, the fake MIDI order andthe digital wave form data to the sound unit to play them. The invention also discloses an apparatus to achieve the method which comprises a file synthetic module, a file decoding module and a sound unit.

Description

technical field [0001] The invention relates to a technology for realizing digital music synthesis, in particular to a method and device for realizing the synthesis and playback of MIDI files and digital waveform audio files. Background technique [0002] The full name of MIDI is Musical Instruments Digital Interface, that is, Musical Instruments Digital Interface. It has been quite widely referenced in the field of professional music production since its birth in the early 80s. The MIDI file itself is very small, usually more than 20K bytes, or even a few Kbytes, and about 100K bytes for the large ones. [0003] The MIDI file itself does not record any sound waveforms, but only records the following information: a certain MIDI channel sends a certain instrument to a sounding device such as a MIDI synthesizer at a certain time and needs to be in a certain state, including pitch, velocity, volume, reverberation, etc. state to speak. The entire sounding process is called a ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10H1/00
Inventor 孙丰强赵原
Owner VIMICRO CORP