METHOD AND APPARATUS FOR AUDIO EDITING OF MIDI FILES

    公开(公告)号:CA2052772C

    公开(公告)日:1994-03-15

    申请号:CA2052772

    申请日:1991-10-04

    Applicant: IBM

    Abstract: METHOD AND APPARATUS FOR AUDIO EDITING OF MIDI FILES A method and apparatus are disclosed for the audio editing of MIDI (Musical Instrument Digital Interface) files. MIDI files make it possible to exchange information such as: musical notes, program changes, expression control and channel information between musical instruments, sequencers, computers, lighting controllers and mixers. MIDI files generally consist of serially listed channel and system messages which include at least program status messages and matching note on and note off messages. The method and apparatus of the present invention may be utilized to ensure the integrity of a source file, a copied or lifted section or a target file by automatically inserting matching note on or note off messages into a file or file section to correct inconsistencies created by such editing. Additionally, program status messages are automatically inserted into source files, copied or lifted sections, or target files to yield results which are consistent with the results which may be obtained by editing digital audio data. Timing information is selectively added or maintained such that MIDI files may be selectively edited without requiring a user to learn a complex MIDI sequencer.

    MIDI FILE TRANSLATION
    2.
    发明专利

    公开(公告)号:CA2052769C

    公开(公告)日:1994-03-15

    申请号:CA2052769

    申请日:1991-10-04

    Applicant: IBM

    Abstract: MIDI FILE TRANSLATION OF TEE DISCLOSURE A system and method for translating MIDI files is used with a sequencer and synthesizer. When a MIDI file is imported into a system, the file is scanned and voice assignment information extracted. This information is stored in a converted file. If desired, the extracted information can be stored using MIDI system exclusives. This allows either any original program change information, or the extracted information, to be used during a performance of the converted MIDI file.

    Expert System for Image Enhancement

    公开(公告)号:CA2093448A1

    公开(公告)日:1994-01-18

    申请号:CA2093448

    申请日:1993-04-06

    Applicant: IBM

    Abstract: A method, system and process for improving image enhancement tools through the application of expert systems. The improvements are accomplished by the operation of a process in the memory of a processor that enhances an image based on a set of criteria entered by a user. The image is enhanced in at least two ways and the two enhanced images (510, 520) are presented to the user. The user selects the image that appears best and the selected image (530) is thereafter used for subsequent image enhancements according to the user criteria until a final choice of images (550, 560) is presented.

Patent Agency Ranking