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Help contents:
 
  Introduction
  What is e-Xpressor MIDI Voiser
  Main Features
  System Requirements
  Installing e-Xpressor MIDI Voicer
  Demo Version Limitations
  Screen Area and Panels
  Screen Area
  Export Panel
  Settings Panel
  Adjusting Input and Output
  Adjusting Microphone Input
  Adjusting Output Volume
  Voice to MIDI Conversion in Real-Time
  Voice to MIDI Conversion Using Microphone
  Tips on Singing into Microphone
  Voice Conversion from Audio Files
  Supported Audio File Formats
  Voice to MIDI Conversion from Audio Files
  Solutions to Possible Problems
  Playback of Recorded or Converted Voice
  Playback of Voice Converted into MIDI Data
  Playback of MIDI Melody by the Recognized Notes
  Playback of Voice Recorded in WAVE Format
  Composing Ring Tones Using Your Voice
  Swift Composing of Simple Ring Tones for Mobile Phones
  Conversion of Vocal to MIDI Music
  How to Convert Melody to MIDI Notes
  Additional Facilities
  Saving a File
  Exporting Recognized Melody to MIDI Score
  Arranging Recognized Melody
  Appendixes
  Voice Diagram Column Colors
  Glossary
  Product Support
  Technical Support
 

About e-Xpressor MIDI Voicer

The program converts voice into timbres of any MIDI instruments , creates original ring tones for mobile phones, creates musical pieces by ear, automatically recognizes notes of the vocal melody.


A live or recorded performance is converted to MIDI in real-time. MIDI Voicer is a veritable musical instrument containing a great selection of musical timbres. For instance, when singing a tune into a microphone you can simultaneously hear it blown by the trumpet or the sax, performed by the electric guitar or even beaten by drums! MIDI Voicer “feels”, recognizes and then plays back all the nuances of voice motion, all the mistakes and false notes. All those facts make the program extremely useful for vocal education. You can also convert melody from an audio file.

Using MIDI Voicer you can easily compose your own original and unique ring tones for mobile phones. You just sing the melody you have just arranged, hear it and immediately convert it to a ring tone for your handset. If you hate singing you can either perform it on the musical instrument you like best or use a melody from an audio file.

Using MIDI Voicer you can easily compose your own original and unique ring tones for mobile phones. You just sing the melody you have just arranged, hear it and immediately convert it to a ring tone for your handset. If you hate singing you can either perform it on the musical instrument you like best or use a melody from an audio file.

Related topics: Main features of e-Xpressor MIDI Voicer
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Main Features

 Main features of e-Xpressor MIDI Voicer:
  • Converts live or recorded solo performance to sound of MIDI instrument in real-time.
  • Records and plays back the sung tune in WAVE and MIDI.
  • Recognizes notes of the sung tune.
  • Plays back the sung tune according to the recognized notes using the MIDI device.
  • Converts singing to ring tones for mobile phones.
 e-Xpressor MIDI Voicer specifications:
  • Range of recognizable voice frequencies: Hz.
  • Range of recognizable notes: A2 .. F#6.
  • Conversion delay (in real-time): not more than 30 milliseconds *.
  • ng files: MP3, WAVE.
  • WAVE file sampling rate: Hz.
  • WAVE file resolution: 8, 16 or 32 bits per sample.

    Saving files with:

  • Original voice: WAVE, MP3.
  • Converted voice: MIDI 1.
  • Recognized melody: MIDI 1.
* if the system complies with the requirements
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System Requirements
  • Pentium PII 400 MHz processor (or higher).
  • RAM no less than 128 MB
  • 3 MB free space on hard disk.
  • Microsoft Windows 98 or later version.
  • Video card.
  • Sound card or embedded sound device, that supports recording of 16-bit wave files and plays MIDI files.
  • PC compatible microphone
  • PC Speakers or headphones.
  • Mouse, keyboard, SVGA display.

Microsoft, Windows 98 are registered trademarks of Microsoft Corporation.
Pentium is registered trademark of Intel Corporation.
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Installing e-Xpressor MIDI Voicer

    To install or upgrade e-Xpressor
  1. Download or copy e-Xpressor's Setup file on hard disk.
  2. Click the Setup file icon.
  3. Follow the setup instruction on the screen.
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Demo Version Limitations

The use of the e-Xpressor MIDI Voicer demo version is not limited in time. However, in the demo version you are NOT ALLOWED TO:

  • Select other than trumpet MIDI instruments for voice to MIDI conversion.
  • Save any results.
  • Convert the recognized pitches to MIDI notes.
  • Use EXPORT TO MIDI SCORE function.
  • Convert the recognized melody to the polyphonic composition.
  • Use EXPORT TO ARRANGED COMPOSITION function.
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Screen Area

Image of voice converted to MIDI with pitch bending (raw MIDI data) MIDI Raw selector
Preset playback of raw MIDI data with pitch smooth bending MIDI Notes selector
Preset playback of recognized MIDI notes SETTINGS buttonsetting pane: General, WAV, MIDI SCORE button
Recognition of melody and conversion of raw MIDI data to MIDI notes sequence WAVE button
Preset playback of WAVE data MIDI button
Preset playback of MIDI data FILE button
Set audio file as input signal source MIC button
Set microphone as input signal source HELP button
Calling Help system EXPORT button
Export of converted voice:
 - to mobile phone ringtone
 - to MIDI score
 - to finished arranged composition SAVE AS button Saving :
(a) converted voice as raw MIDI data;
(b) recognized MIDI notes; (c) voice in audio file. OUT button
Adjustment of output signal volume IN button
Adjustment of the level of microphone signal boost PLAY button
Playback of voice converted to MIDI or recorded in WAV format STOP button
Stops voice to MIDI conversion or playback of recognized data START button
Voice to MIDI data conversion using microphone or from audio file
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Export Panel

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Settings Panel

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General Settings

 Click the SETTINGS button and select the General tab. The following checkboxes will
Disable Voice Diagram
Don’t display the colored image of converted voice in the indicator window.
Double Voice Diagram Columns
Set double width of the columns.
Don’t Remind of Saving
Don’t display the warning window before overwriting unsaved data.
Merge Short Pitch Deviations
Eliminate all short deviations of recognized pitches when notes are recognized.
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Setting input and output audio devices

 Click the SETTINGS button and select the WAV tab.

Select input and output sound devices installed on your computer in appropriate list boxes.

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Adjusting MIDI output

 First click the SETTINGS button and select the MIDI tab. The following settings will
Output Device
The list of synthesizers where you can select one and set it as output. Auto mode is set by default.
MIDI Instrument
The list of MIDI instruments (patches) where you can select one and assign it as output. Operates both in the real time and MIDI playback modes. The trumpet’s patch is set by default.
Octave Shift
Setting the octave shift of the output MIDI according to the octave you are singing in. You can shift within +-3 octaves. Operates both in real-time and MIDI playback modes. Null shift is set by default.
Volume
Setting the MIDI output volume. Operates both in real-time and MIDI playback modes. Range: 0…127. 100 value is set by default.
Tempo
Adjusting speed of MIDI file playback. Operates in MIDI playback mode only. Range 10…250 beats per minute. 120 value is set by default.
Ticks per quarter-note
Adjusting the number of ticks per quarter note. Used as a parameter on MIDI file recording.
Related topics: Screen Area
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Adjusting Microphone Input

 To reach quality voice to MIDI conversion the microphone should first of all be sensitive enough.
    To adjust the microphone:

  1. Make sure the microphone is plugged-in to MICROPHONE INPUT jack of your PC’s sound card.
  2. Click the IN button. RECORD LEVEL pane will
  3. Make sure the microphone is switched on in the checkbox of RECORD LEVEL pane.
  4. Adjust microphone LEVEL control slider in the mid position.
  5. Go to the Voice to MIDI conversion using microphone.

Note
By a normal microphone sensitivity level and a reasonable vocal volume the altitude of columns of voice diagram will be displayed reaching the middle of the indicator window. If not, click the IN button and readjust the microphone LEVEL slider position.

Related topics: Screen Area
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Adjusting Output Volume

    To adjust output volume:

  1. Click the OUT button. VOLUME pane will
  2. If you are converting voice to WAVE make sure WAVE is switched on in the checkbox of VOLUME pane and adjust its control slider position.
  3. If you are converting voice to MIDI make sure MIDI is switched on in the checkbox of VOLUME pane and adjust its control slider position.

Note
MIDI volume level is adjusted regardless of the overall volume level (see Adjusting MIDI output).

Related topics: Screen Area
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Voice to MIDI Conversion Using Microphone

If you have adjusted microphone input sensitivity (see p. 1-4 Adjusting microphone) you can proceed to singing. The program converts voice to musical instrument sound in real-time. Conversion delay should not exceed 30 milliseconds (0.03 of a second) if your computer complies with the requirements (see System requirements).

    To convert microphone singing to MIDI:
  1. Click the MIC button under the START button. The red indicator above the MIC button will be on.
  2. If you want to hear MIDI conversion in real-time click also the MIDI button under the PLAY button. The red indicator above the MIDI button will be on.
  3. Click the START button and sing into the microphone.
  4. To cancel conversion click the STOP button.

Notes:
Once you start singing you will see the colored image of converted voice signal (raw MIDI data - MIDI data with smooth pitch bending) in the indicator window. The more amplification is the higher diagram bars are. Whether the amplification is too low or too high readjust microphone sensitivity. The diagram color depends on the pitch of your voice. Different notes will be displayed by various colors in real-time.
You will also see the note you are currently singing.

You can also
Set another output MIDI instrument
Adjust output volume
Shift octave, to which your voice is converted
Set other parameters (see Adjusting MIDI output)

Related topics: Screen Area
Adjusting microphone
System requirements
Tips on singing into microphone
Voice Diagram Column Colors
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Tips on Singing into Microphone

 Better results of voice to MIDI conversion can be achieved by following the recommendations:
  1. Use a special studio microphone or cover a microphone with a foam rubber cap not to impede conversion. Use a microphone cap made of any foam rubber or foam plastic.
  2. Do not sing words. Try to sing “aah” or “da-da-da”. Avoid singing “la-la-la”.
  3. Nestle the microphone in your palm. The microphone should be treated carefully, avoid shocks or vibration during the vocal to MIDI conversion.
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Supported Audio File Formats

 Now only WAVE files are supported.

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Voice to MIDI Conversion from Audio Files

    To convert audio file to MIDI:
  1. Click the FILE button under the START button. The red indicator above the FILE button will be on.
  2. To hear instant voice to MIDI conversion also click the MIDI button under the PLAY button. The red indicator above the MIDI button will be on.
  3. Click the START button and select a vocal audio file. Conversion starts immediately afterng file.
  4. Press the STOP button to cancel conversion.

Notes:
Once conversion is started the voice columns (raw MIDI data) will be displayed in the indicator window. The higher signal level is the higher diagram columns are. The diagram color depends on the recognized voice pitch. Different notes will be displayed by various colors in real-time.
You will also see the recognized note you are currently singing.

You can also
Set another output MIDI instrument
Adjust output volume
Shift octave, to which your voice is converted
Set other parameters (see Adjusting MIDI output)

Related topics: Screen Area
Solutions to possible problems of vocal audio file conversion
Voice Diagram Column Colors
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Solutions to Possible Problems

ProblemPossible Solutions
 
Cannotaudio file The program supports WAVE and MP3 formats only.
 
Audio file melody is poorly recognizedThe melody suggested is polyphonic. Make sure the melody is monophonic.
 
The melody is performed instrumentally (e.g. on piano or guitar) but not vocally.
 
The melody is roughly or poorly performed.
 
Recorded melody is deeply buried in noise.
 
The pitch range of melody partially exceeds the range of recognizable notes.
 
Audio file melody is not recognizedMake sure you suggest a musical file.
 
The music suggested is polyphonic. Make sure the suggested melody is monophonic.
 
The melody is performed instrumentally (e.g. on piano or guitar) but not vocally.
 
The pitch range of melody exceeds the range of recognizable notes.
 
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Playback of Voice Converted into MIDI Data

    To play back the voice converted into MIDI:
  1. Click the MIDI button under the PLAY button. The red indicator above the MIDI button will be on.
  2. Click the MIDI Raw selector in the bottom left corner of the indicator window or make sure it is selected and is green.
  3. Click the PLAY button. The record will be played back from the beginning till the end.
  4. To cancel playback click the STOP button.

Note:
In this case the result of recognizing voice pitch with all deviations and inaccuracies (MIDI raw) will be played back. Please do not confuse it with playing back notes of the recognized melody.

You can also
Set another output MIDI instrument
Adjust output volume
Shift octave, to which your voice is converted
Set other parameters (see Adjusting MIDI output)

Related topics: Screen Area
Playback of MIDI melody by the recognized notes
Voice Diagram Column Colors
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Playback of MIDI Melody by the Recognized Notes

Before playing back the program should recognize notes of vocal (see How to convert melody to MIDI notes).

    To playback the result of melody notes recognition:
  1. Click the MIDI button under the PLAY button. The red indicator above the MIDI button will be on.
  2. Click the MIDI Notes selector in the upper left corner of the indicator window or make sure it is selected and is green.n. The red indicator above the MIDI button will be on.
  3. Click the PLAY button.
  4. To cancel playing back click the STOP button.

Note:
In this case the MIDI synthesizer will playback the recognized melody notes. All voice pitch deviations and inaccuracies will be corrected and removed.

You can also
Set another output MIDI instrument
Adjust output volume
Change the octave, to which your voice is converted
Set other parameters (see Adjusting MIDI output)

Related topics: Screen Area
How to convert melody to MIDI notes
Voice Diagram Column Colors
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Playback of Voice Recorded in WAVE Format

 Along with voice to MIDI conversion the program records voice in WAVE too.
    To hear original voice from audio file or recorded using a microphone:
  1. Click the WAV button under the PLAY button. The red indicator above the WAV button will be switched on.
  2. Click the PLAY button. The record will be played back from start to the end.
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Swift Composing of Simple Ring Tones for Mobile Phones*

Sing a melody into a microphone and the program will convert it to a MIDI ring tone, in key press sequences in RTTTL format, and send it directly to your mobile phone via SMS.

    To get your own ring tone:
  1. Click the EXPORT button and select the RINGTONE tab.
  2. Select type of your handset in the list box.
  3. Click the OK button.

Additional information:
Voice to MIDI conversion using microphone.
Screen Area

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How to Convert Melody to MIDI Notes*

    To recognize notes of the sung melody:
  1. Convert live or recorded voice to raw MIDI data (see Voice to MIDI conversion using microphone or Voice to MIDI conversion from audio files).
  2. Click the SCORE button. In the upper sector of the indicator window you will see the colored image of recognized notes of the sung melody.

You can also
Playback of MIDI melody by the recognized notes
Exporting recognized melody to MIDI score
Arrange recognized melody

Related topics: Screen Area
Voice Diagram Column Colors
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Saving a File*

To save results click the SAVE AS button.

Data typeFile Format
 
Original voice:WAV,
MP3 (not available in Version 1.0)
 
Voice converted to MIDI and recorded with pitch bending (raw MIDI data):MIDI

 
Recognized notes of the sung melody:MIDI

 
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Exporting Recognized Melody to MIDI Score*

You can convert recognized notes to the score suitable both for printing sheet music and further processing by MIDI sequencers.

    To do this:
  1. Click the EXPORT button and select the MIDI SCORE tab.
  2. Set appropriate time signature in the Set Meter field.
  3. If your melody begins from the off-beat, activate the Off Beat checkbox.
  4. Click the OK button and save the score in MIDI.
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Arranging Recognized Melody*

You may want to arrange your single-voice melody by backing it with accompanying instruments, e.g. drums, bass guitar and other instruments.

All this is available automatically if you have e-Xpressor Real MIDI Accompaniment Maker program.

    To do this:
  1. Click the EXPORT button and select the ARRANGED COMPOSITION tab.
  2. Set appropriate time signature in the Set Meter field.
  3. If your melody begins from the off-beat, switch on the Off Beat checkbox.
  4. Click the OK button and your melody will be downloaded into e-Xpressor Real MIDI Accompaniment Maker program and automatically arranged.

Note
If you do not have e-Xpressor Real MIDI Accompaniment Maker you can download it.

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Voice Diagram Column Colors

 Color display of notes in the indicator window.

Color display of notes in the indicator window

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Glossary

accompaniment - instrumental or orchestral support for a solo instrument, voice, or group.

arrange - adapt a composition for a particular manner of performance.

melody - single notes arranged to make a distinctive recognizable pattern; tune.

meter - basic rhythm of music. For example, a 2/4 time signature means that there are two beats in a bar and the quarter note gets the beat.

MIDI - Musical Instrument Digital Interface. MIDI is a serial interface and protocol which allows musical instruments and computers to communicate.

monophonic or single-voice - using only one note sounding at a time.

octave - Mus. an interval between (and including) two notes, one having twice or half the frequency of vibration of the other.

tempo - speed at which music is or should be played.

WAVE - WAVE File Format (.wav extension) is a file format for storing digital audio (waveform) data. It supports a variety of bit resolutions, sample rates, and channels of audio.

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Technical Support

If you have a question about your e-Xpressor MIDI Voicer, first look in this Help.

If you cannot find the answer, please contact the Support Service by e-mail support.

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* feature is not available in the Demo Version

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