Improvement of an Audio-MIDI Encoder Tool “Auto-F” for Supporting Windows 10 Platforms

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  • 音響信号のMIDI 符号化ツール「オート符」のWindows10対応に伴う改修
  • オンキョウ シンゴウ ノ MIDI フゴウカ ツール 「 オートフ 」 ノ Windows10 タイオウ ニ トモナウ カイシュウ

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Our previously developed audio to MIDI-event converter tool “Auto-F” has a feature of highprecision harmonic tone analysis functions based on the Generalized Harmonic Analysis algorithm. Applying this tool, from given vocal acoustic signals we can create MIDI data, which enable to playback voice-like signals with a standard MIDI synthesizer. We began developing this software as a Win32 application on the Windows NT/95 platform in 1996. Since 2001, we have distributed this software tool for free at the Website of the Digital Content Association Japan for about 14 years, with several improvements added. In these years, Microsoft has released several upgraded Windows Operating Systems, and our developed tool could catch up with these updates and continue running on newer platforms until the latest Windows 10/64bits. However, the “Windows 10 Anniversary Update” released in the last summer, has influenced on the MIDI sequencer function of this tool. Then, we have improved this tool and we could successfully make its execution stable on this newest platform. In this report, we present results of our tracking of this software defect and our adopted technique for avoiding it.

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