WIDI（mid编辑工具）

WIDI Recognition System Software for Automated Music Transcription (WAVE->MIDI) (version 3.0) Contents: 0.What's new 1.Introduction 2.Features 3.Description 4.WIDI for Windows 4.1.System Requirements 4.2.Installation 5.How does it work 6.License 7.Registration 8.Other things Copyright WIDISOFT, 1998-2003 _____________________________________________________________________________ 0.What's new Version 3.0: + We are now releasing two new versions: WIDI Recognition System Standard and WIDI Recognition System Professional. The only difference between the two is that WIDI Recognition System Professional has an unique feature "TrueTone Editor (tm)" + New Realtime Conversion module added (the program can detect notes played by any instrument in real-time and play it synchronously or store as MIDI command). + New TrueTone Editor(tm) (only for the Professional version) developed. This TrueTone Editor is a unique feature, which simplifies the process of correcting possible mistakes of automatic recognition. + The program's interface has been changed for your convenience. + New algorithms have been added. * Several bug fixes. - DOS, console and OS/2 versions are not supported any more. Version 2.7 : + New method named "Advanced Sensors" added. This method includes an auto tuning algorithm. It allows reducing the amount of non-harmonic notes greatly. + ACM (Audio Compression Manager) support added - you can open and transcribe any type of audio file if you have installed an appropriate ACM codec. ADPCM, A-Law, u-Law and some other codecs are usually present by default. (Win GUI and Windows console) + CD support added - you can work directly with CD-tracks by simply opening *.cda files from your CD-ROM. + You expand CD-tracks and compressed files to temporary files, therefore, greatly improving the speed of consecutive transcribing attempts. + You can record sound files with WIDI now. (Win GUI only) * Fixed a bug in "Peak" method, which should significantly increase this method's quality. * Parameter names in INI file were changed into a friendlier form. * Now all output files are written to a current directory by console versions - to support CD grabbing in WIN32 console. Version 2.6 : + MP3 support added! Now you can recognize MP3 files directly, without first converting them to WAV! + Intermediate GS file support added. + Full Windows NT & Windows 2000 support. * Fixed minor bug with MIDI file writing. Version 2.51 : + A bug related to FFT transform fixed, and quality of "FFT" method improved greatly. Try it ! * A bug related to 44100Hz WAVE buffering fixed. No more "Unknown Error" when recognizing such waves. Version 2.5 : + Completely new algorithms of pitch recognition and note determination made. They are much faster and almost always give better results. Older ones are present as well. + Ability to playback MIDI files added (Win GUI) + Parameters to specify MIDI file output added (Win GUI) + Help file included for Win GUI version * Unregistered Win GUI version does not allow saving of MIDI files. * Shareware protection was changed. All registered users should contact us for a new key for free. - "Output Window" disappeared (Win GUI) - Because of problems with MIDI playback under Windows NT, unregistered Win GUI version may be useless under NT, although registered version can save MIDI files under NT as well. Version 2.31 : + added recognition of some non-standard wave files Version 2.3 : + enabled "equalizer" + algorithm slightly improved + added "time shift of bass notes" parameter + improved interface Version 2.21: * WAVE fragment selection bug fixed (wrong selection display for large WAVES) * "minduration" INI parameter bug fixed (it was not recognized by v.2.2) Version 2.0 : + significantly improved the conversion quality + a friendlier user interface + a selectable number of voices + selectable musical instruments for playing notes + a selectable record fragment for recognition + memory requirements several times as low * different values of the "minnotedur" parameter - conversion time increased - disabled "equalizer" (to be corrected soon) - disabled "economy memory" mode 1.Introduction The Program tries to convert musical piece to score, i.e. Sound source file (WAVE, MPEG, CD-tracks) to MIDI file, containing notes. Composing the necessary sophisticated algorithm is a difficult task, hence rather imperfect work of the Program. Most of documentation regarding usage of WIDI Recognition System is contained in the help file. 2.Features - the Program gets as input both compressed and uncompressed WAVE, MPEG Layer 1, 2 and 3 and CD tracks. - produces multi-track volume differentiated MIDI files. - WIDI Professional allows easy MIDI correcting with TrueTone Editor(tm). - uses simple harmonic model to eliminate wrong notes. - allows automatic fine tuning to the key of source file. - does not differentiate instruments in the source file, but allows you to use any instrument in the output MIDI file. - can produce intermediate GS files for quicker operation. - pitches to recognize are selectable ("equalizer"). - many parameters to tune up the recognition process. - the length of input source file is unlimited. 3.Description WIDI works in two recognition modes: Offline and Realtime. In Offline mode, source file of one of supported formats is a necessary condition for using the Program. It can be recorded from microphone, or external source. WIDI can also grab files from CD, but this does not work in all hardware/software configurations. MIDI file is obtained after the corresponding parameter set up and subsequent conversion of source file. Easy correction of recognition errors can be done with the help of TrueTone Editor(tm), which is included in WIDI Professional. MIDI file then can be played with Media Player or it can be loaded into a third-party MIDI Editor for note viewing or/and printing. In Realtime mode, recognized MIDI notes are played simultaneously with inputting of sound. Time latency is relatively small, allowing you to control your synthesizer by voice or some other non-MIDI musical instrument. WIDI also contains simple MIDI player and Wave Recorder. _____________________________________________________________________________ 4.WIDI for Windows 4.1.System Requirements Processor: Pentium II (450MHz - recommended) Memory: 32Mb or more Drive Space: 5Mb + space for temporary files (recommended 100 Mb) Operating system: Win98/ME, Windows NT/2000/XP Sound System: Strongly recommended Note: WIDI may work under Windows 95 as well, but it is not guaranteed. 4.2.Installation If you have a previous version installed, we recommend you uninstall it first. All registered users of WIDI 2.7 receive keys for WIDI 3.0 Standard for free. Please write to newkey@widisoft.com . Start widi30in.exe to install (you may need to unpack widi27.zip if you have downloaded WIDI in zip form). To uninstall follow standard Windows Add/Remove (Control Panel->Add/Remove Programs->WIDI version 3.x) Most of information on Windows version is contained in the help file. ____________________________________________________________________________ 5.How it works WIDI performs music recognition in several steps. First it produces some kind of spectra-like data; this is called the "Wave->Pitch" conversion. At the present moment, there exist three different algorithms