Midi2Wav Recorder - Converting Midi to Wave
June 2, 2004 (Press Release) --
Midi2Wav Recorder - Converting Midi to Wave
1. Destination File. Setting Format of New Waveform.
Midi2Wav Recorder records audio data into destination file of Windows PCM (.WAV) format.
If you do not want to use the default settings, you must select the following parameters of destination wave file before you start recording.
> Sample Rate
The Sample rate is the rate at which the computer saves measurements of the signal amplitude.
You can choose between the three sampling rates:
- 44.100 kHz (CD Quality)
- 22.050 kHz (FM Radio Quality)
- 11.025 kHz (Telephone Line Quality)
> Channels
You can record in:
- mono (1 channel)
- Stereo (2 channel)
> Sampling Resolution
The Sampling Resolution describes the number of bits used for each sample on each channel.
You can decide whether individual samples will be stored in:
- 8 bits (a single byte)
- 16 bits (an entire word)
Warning: Using higher sampling rates, stereo or higher bit resolutions will result in higher quality sounds at the expense of requiring more disk memory.
> Changing the Waveform Format
The current waveform format is displayed in Format field of Wave panel.
By default Midi2Wav uses the following settings for recording:
- CD Quality -- 44100 kHz, Stereo, 16 bit, if no Wave file has been loaded
- The settings of loaded Wave file
To change a waveform format:
1. Click on the Wave panel toolbar or choose Wave / New Waveform / Others to display New Waveform dialog
2. In this dialog select sample rate, channels and resolution
3. Click OK
Menu item Wave / New Waveform has the set of the following waveform formats:
- CD Quality -- 44100 Hz, 16 bit, Stereo
- FM Radio Quality -- 22050 Hz, 16 bit, Stereo
- AM Radio Quality -- 22050 Hz, 8 bit, Mono
- Telephone Line --11025 Hz, 8 bit, Mono.
To use a predefined waveform format:
- Choose Wave / New Waveform / one of predefined waveform
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2. Selecting Wave Input Device
By default Midi2Wav Recorder uses Wave Mapper, that is the Audio input device which is specified in your system as default (you can see it by choosing Start / Control Panel / Multimedia / Audio).
To change Wave Input device:
Open menu item Settings / Select Devices and Test Recording.
Select Wave Input (Recording) device from the drop-down list.
Press Select Devices button.
Warning: If you select devices for the first time you need to test the recording capability of your sound card.
--------------------------------------------------------------------------------
3. Testing MIDI to Wave Recording
Midi2Wav Recorder uses your sound card's internal synth for MIDI to Wave conversion. MIDI performance is entirely dependant on the MIDI Output device that it will be played back on. The Wave Input (Recording) device determines the available Wave formats and recording quality.
When you select the devices for the first time you need to test their recording capability. Midi2Wav Recorder will play some MIDI notes and try to record them using various mixer lines. This test helps to find appropriate mixer line for recording and adjust Built-In Mixer.
To test recording open menu item Settings / Select Devices and Test Recording and press Test Recording button.
If you do not test the recording Built-In Mixer may function incorrectly and Wave file may contain no sound. See the Comments field for details of testing.
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4. Choosing a Source. Mixing MIDI Playback and Microphone Input
To record into destination Wave file, you must choose a source for sound to be recorded. It may be MIDI playback only or MIDI music and sound from microphone.
To record MIDI playback and microphone input:
1. Check Mic checkbox before recording.
2. Click "midi to wav converter" button on Wave panel or choose command Wave / Convert MIDI to Wave.
3. Sing to microphone while MIDI is playing.
To record MIDI playback only:
1. Uncheck Mic checkbox before you start recording.
2. Click "midi to wav converter" button on Wave panel or choose Wave / Convert MIDI to Wave.
Warning: If you do not want to mix MIDI playback and your singing to Mic, you have to uncheck Mic checkbox in order to avoid appearance of noise pickups.
--------------------------------------------------------------------------------
5. Converting MIDI to Wave (MP3)
> Starting conversion
To start MIDI to Wave conversion:
1. Open MIDI file
2. Click midi to wav converter button on Wave panel or Choose command Wave / Convert MIDI to Wave.
Tips: There is not need for you to start a MIDI file playback. This will be done automatically. The playback will be started from the position of the trackbar slider.
> Stopping Conversion
To stop conversion before the MIDI playback is finished:
- Click stop button on Wave panel
- or Choose command Wave / Stop Wave. The MIDI playback will be stopped automatically.
If you want to record the entire MIDI file, wait until MIDI playback is finished and recording will be stopped automatically.
Now you can save the resulting WAV file or save it as MP3 file.
The Demo version allows saving only 10 seconds of Wave data.
--------------------------------------------------------------------------------
6. Record Statistics. Record Level Adjusting
After recording is over the following information is displayed in the Wave Statistics field:
- Max Volume is the maximum volume of recording given in decibel form The volume values range from –70db (soft) to 0db (loud).
- Average Volume represents the average volume of the entire recording. This is a good measure of the overall loudness of the recording.
- Max Signal is the absolute maximum sample value of the recording. The value 0% signifies the absence of signal (silence) and the value 100% signifies maximum possible signal.
- Clipping The warning of possible clipping appears in this field, if the amplitude of the sampled signal gets too high, such that a 16-bit (8-bit) number is not large enough to represent it. In this case the signal is clipped-cut off at the maximum value. Clipping can cause clicks, pops, and distortion of the original sound. In the event of Attention CLIPPING warning, lower record level and repeat recording. See also Troubleshooting. Clipping.
The dynamic range of your recording depends of two factors:
volume of MIDI playback -- MIDI slider and record level -- Rec slider. In order to maximize the dynamic range of your recording, you should set both as high as possible without clipping the signal. Try to define the optimal relationship of levels for your sound card and then correct it for new opened MIDI file if it necessary.
To change a record level:
- Click and drag the Rec slider.
To change volume of MIDI playing:
- Click and drag the MIDI slider.
--------------------------------------------------------------------------------
7. Batch Conversion
With batch conversion you can record a number of MIDI files one after the other.
1. Open Batch dialog by choosing menu Wave (MP3) / Batch Conversion.
2. Add MIDI files to the list of the MIDI files you want converted. If you browse to a directory that contains several MIDI files, you can select any combination of them by clicking with the SHIFT or CTRL keys.
3. Choose destination directory for Wave (MP3) files.
4. Start conversion by pressing Convert button.
Into Wave Files Info box you can see the total size and duration of the Wave files you want converted as well as the rested time of the process.
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8. MP3 Settings
Bitrate
Determines the number of bits per second. Bitrate may be set from 8kb/s to 320kb/s. The default value is set to 128kb/s. A larger bit rate will yield generally better-sounding (but larger) MP3 files.
Bitrate (BR) mode
Constant BR
This is the default encoding mode, and also the most basic. In this mode, the bitrate will be the same for the whole file. It means that each part of your mp3 file will be using the same number of bits. The musical passage beeing a difficult one to encode or an easy one, the encoder will use the same bitrate, so the quality of your mp3 is variable. Complex parts will be of a lower quality than the easiest ones. The main advantage is that the final files size won't change and can be accurately predicted.
Average BR
In this mode, you choose the encoder will maintain an average bitrate while using higher bitrates for the parts of your music that need more bits. The result will be of higher quality than Constant Bitrate encoding but the average file size will remain predictible, so this mode is highly recommended over Constant Bitrate.
Variable BR
In this mode then encoder tries to maintain the given quality in the whole file by choosing the optimal number of bits to spend for each part of your music. The problem with Variable Bitrate is that some players or MP3 devices may not play them back as well as Constant Bitrate MP3 files. In this mode you can choose Min Bitrate (the minimum bit rate to use) and Max Bitrate (the maximum bit rate to use).
Bits
This option will add some bits to the encoded file.
Copyright
When enabled, it will set the copyright flag in the MP3 stream.
CRC
When enabled, it will add a cyclic redundancy check (CRC) code in each frame, allowing the decoding software to detect transmission errors that could occur on the MP3 stream. However, it takes 16 bits per frame that would otherwise be used for encoding, and therefore will slightly reduce the sound quality.
Original
When enabled, it will set the original flag in the MP3 stream.
Private
When enabled, it will set the private flag in the MP3 stream.
http://www.xkee.com/midi2wav-recorder-download/midi-to-wav.html
1. Destination File. Setting Format of New Waveform.
Midi2Wav Recorder records audio data into destination file of Windows PCM (.WAV) format.
If you do not want to use the default settings, you must select the following parameters of destination wave file before you start recording.
> Sample Rate
The Sample rate is the rate at which the computer saves measurements of the signal amplitude.
You can choose between the three sampling rates:
- 44.100 kHz (CD Quality)
- 22.050 kHz (FM Radio Quality)
- 11.025 kHz (Telephone Line Quality)
> Channels
You can record in:
- mono (1 channel)
- Stereo (2 channel)
> Sampling Resolution
The Sampling Resolution describes the number of bits used for each sample on each channel.
You can decide whether individual samples will be stored in:
- 8 bits (a single byte)
- 16 bits (an entire word)
Warning: Using higher sampling rates, stereo or higher bit resolutions will result in higher quality sounds at the expense of requiring more disk memory.
> Changing the Waveform Format
The current waveform format is displayed in Format field of Wave panel.
By default Midi2Wav uses the following settings for recording:
- CD Quality -- 44100 kHz, Stereo, 16 bit, if no Wave file has been loaded
- The settings of loaded Wave file
To change a waveform format:
1. Click on the Wave panel toolbar or choose Wave / New Waveform / Others to display New Waveform dialog
2. In this dialog select sample rate, channels and resolution
3. Click OK
Menu item Wave / New Waveform has the set of the following waveform formats:
- CD Quality -- 44100 Hz, 16 bit, Stereo
- FM Radio Quality -- 22050 Hz, 16 bit, Stereo
- AM Radio Quality -- 22050 Hz, 8 bit, Mono
- Telephone Line --11025 Hz, 8 bit, Mono.
To use a predefined waveform format:
- Choose Wave / New Waveform / one of predefined waveform
--------------------------------------------------------------------------------
2. Selecting Wave Input Device
By default Midi2Wav Recorder uses Wave Mapper, that is the Audio input device which is specified in your system as default (you can see it by choosing Start / Control Panel / Multimedia / Audio).
To change Wave Input device:
Open menu item Settings / Select Devices and Test Recording.
Select Wave Input (Recording) device from the drop-down list.
Press Select Devices button.
Warning: If you select devices for the first time you need to test the recording capability of your sound card.
--------------------------------------------------------------------------------
3. Testing MIDI to Wave Recording
Midi2Wav Recorder uses your sound card's internal synth for MIDI to Wave conversion. MIDI performance is entirely dependant on the MIDI Output device that it will be played back on. The Wave Input (Recording) device determines the available Wave formats and recording quality.
When you select the devices for the first time you need to test their recording capability. Midi2Wav Recorder will play some MIDI notes and try to record them using various mixer lines. This test helps to find appropriate mixer line for recording and adjust Built-In Mixer.
To test recording open menu item Settings / Select Devices and Test Recording and press Test Recording button.
If you do not test the recording Built-In Mixer may function incorrectly and Wave file may contain no sound. See the Comments field for details of testing.
--------------------------------------------------------------------------------
4. Choosing a Source. Mixing MIDI Playback and Microphone Input
To record into destination Wave file, you must choose a source for sound to be recorded. It may be MIDI playback only or MIDI music and sound from microphone.
To record MIDI playback and microphone input:
1. Check Mic checkbox before recording.
2. Click "midi to wav converter" button on Wave panel or choose command Wave / Convert MIDI to Wave.
3. Sing to microphone while MIDI is playing.
To record MIDI playback only:
1. Uncheck Mic checkbox before you start recording.
2. Click "midi to wav converter" button on Wave panel or choose Wave / Convert MIDI to Wave.
Warning: If you do not want to mix MIDI playback and your singing to Mic, you have to uncheck Mic checkbox in order to avoid appearance of noise pickups.
--------------------------------------------------------------------------------
5. Converting MIDI to Wave (MP3)
> Starting conversion
To start MIDI to Wave conversion:
1. Open MIDI file
2. Click midi to wav converter button on Wave panel or Choose command Wave / Convert MIDI to Wave.
Tips: There is not need for you to start a MIDI file playback. This will be done automatically. The playback will be started from the position of the trackbar slider.
> Stopping Conversion
To stop conversion before the MIDI playback is finished:
- Click stop button on Wave panel
- or Choose command Wave / Stop Wave. The MIDI playback will be stopped automatically.
If you want to record the entire MIDI file, wait until MIDI playback is finished and recording will be stopped automatically.
Now you can save the resulting WAV file or save it as MP3 file.
The Demo version allows saving only 10 seconds of Wave data.
--------------------------------------------------------------------------------
6. Record Statistics. Record Level Adjusting
After recording is over the following information is displayed in the Wave Statistics field:
- Max Volume is the maximum volume of recording given in decibel form The volume values range from –70db (soft) to 0db (loud).
- Average Volume represents the average volume of the entire recording. This is a good measure of the overall loudness of the recording.
- Max Signal is the absolute maximum sample value of the recording. The value 0% signifies the absence of signal (silence) and the value 100% signifies maximum possible signal.
- Clipping The warning of possible clipping appears in this field, if the amplitude of the sampled signal gets too high, such that a 16-bit (8-bit) number is not large enough to represent it. In this case the signal is clipped-cut off at the maximum value. Clipping can cause clicks, pops, and distortion of the original sound. In the event of Attention CLIPPING warning, lower record level and repeat recording. See also Troubleshooting. Clipping.
The dynamic range of your recording depends of two factors:
volume of MIDI playback -- MIDI slider and record level -- Rec slider. In order to maximize the dynamic range of your recording, you should set both as high as possible without clipping the signal. Try to define the optimal relationship of levels for your sound card and then correct it for new opened MIDI file if it necessary.
To change a record level:
- Click and drag the Rec slider.
To change volume of MIDI playing:
- Click and drag the MIDI slider.
--------------------------------------------------------------------------------
7. Batch Conversion
With batch conversion you can record a number of MIDI files one after the other.
1. Open Batch dialog by choosing menu Wave (MP3) / Batch Conversion.
2. Add MIDI files to the list of the MIDI files you want converted. If you browse to a directory that contains several MIDI files, you can select any combination of them by clicking with the SHIFT or CTRL keys.
3. Choose destination directory for Wave (MP3) files.
4. Start conversion by pressing Convert button.
Into Wave Files Info box you can see the total size and duration of the Wave files you want converted as well as the rested time of the process.
--------------------------------------------------------------------------------
8. MP3 Settings
Bitrate
Determines the number of bits per second. Bitrate may be set from 8kb/s to 320kb/s. The default value is set to 128kb/s. A larger bit rate will yield generally better-sounding (but larger) MP3 files.
Bitrate (BR) mode
Constant BR
This is the default encoding mode, and also the most basic. In this mode, the bitrate will be the same for the whole file. It means that each part of your mp3 file will be using the same number of bits. The musical passage beeing a difficult one to encode or an easy one, the encoder will use the same bitrate, so the quality of your mp3 is variable. Complex parts will be of a lower quality than the easiest ones. The main advantage is that the final files size won't change and can be accurately predicted.
Average BR
In this mode, you choose the encoder will maintain an average bitrate while using higher bitrates for the parts of your music that need more bits. The result will be of higher quality than Constant Bitrate encoding but the average file size will remain predictible, so this mode is highly recommended over Constant Bitrate.
Variable BR
In this mode then encoder tries to maintain the given quality in the whole file by choosing the optimal number of bits to spend for each part of your music. The problem with Variable Bitrate is that some players or MP3 devices may not play them back as well as Constant Bitrate MP3 files. In this mode you can choose Min Bitrate (the minimum bit rate to use) and Max Bitrate (the maximum bit rate to use).
Bits
This option will add some bits to the encoded file.
Copyright
When enabled, it will set the copyright flag in the MP3 stream.
CRC
When enabled, it will add a cyclic redundancy check (CRC) code in each frame, allowing the decoding software to detect transmission errors that could occur on the MP3 stream. However, it takes 16 bits per frame that would otherwise be used for encoding, and therefore will slightly reduce the sound quality.
Original
When enabled, it will set the original flag in the MP3 stream.
Private
When enabled, it will set the private flag in the MP3 stream.
http://www.xkee.com/midi2wav-recorder-download/midi-to-wav.html
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