How to convert .midi or .kar files to .mp3?

Rapid MIDI to MP3 Converter will help you to turn a bunch of .MIDI files into high-quality MP3, WAV, AAC, M4A AIFF, FLAC or a dozen other formats in a matter of seconds.

Step by step guide on how to convert .MIDI files to MP3:

Free download online and install Midi To MP3 Converter on your PC, and then follow the step by step guide to convert midi to mp3 within seconds. Here we take convert MIDI as example.

Step 1: Add .MIDI or .KAR files you want to convert to mp3 to drop zone of Converter – simply drag and drop your .MIDI files to the main interface of the program.
Tips: Drag and drop the folder where the MIDI files are to MidiMP3 Converter, if you don’t want to add files one by one. Note that these .MIDI files are arranged according to the play order. So if you need to exchange the location of few media files, just free drag them to your wanted position.

Step 2: Set the output format: MP3, WMA, WAV, AIFF, OGG or any other. Choose another audio format as output format if you’d like to change the target format.

Step 3: Customize audio parameters: click Settings button to set audio parameters (sample rate, channels, bitrate) for the output format as you want.

Step 4: Convert media files to MP3! Simply click big “Convert” button on the lower right corner of the program to convert .MIDI files into MP3′s in a flash.



Main Benefits:

Get Superb Audio Quality

MIDI is a simple audio format that can be played back with an ancient FM synthesizer. In fact, most phones and mobile audio players will use those very ancient synthesizers to play back a native MIDI file. As a result, you’ll be getting plain, simplistic sound that’s hard to bear for longer than a few seconds. At best, a portable player will use wavetables of some sort, producing audio that just sounds… acceptable.

Rapid MIDI to MP3 Converter performs the highest-quality conversion of all .MID’s to produce audio compositions that sound just great. Using the latest conversion technologies, it employs high-quality sound fonts and precisely calculated spatial effects to produce some smooth sound that’s pleasant to the ear.

In fact, the conversion quality provided by Batch MIDI Converter is so good it’s hard to believe you’re listening to a good old MIDI file and not to a symphony orchestra. Just listen to this sample to check out how great the conversion can be done!

Sound Fonts and Special Effects

A wide range of sound effects such as different sound fonts, echo, chorus, reverberation etc. are available to greatly enhance the sound, making the final output sound way better than your phone or audio player can ever make out of a MID tune. User-selectable sound fonts allow you you’re your own waveforms for various musical instruments. Just make sure the sounds are in the industry-standard SoundFont format, and you’re good to go!


Convert MIDI Files to MP3, WAV, AIFF, M4A, AAC, MP4 etc.

What’s the native format of your player? Is it AAC, AIFF, MP3 or WAV? No problem! This Converter can quickly convert your MIDI’s into any popular sound media format. Supporting all types of MIDI’s, it can convert RMI, KAR and MID to any supported sound format in just a few seconds.

Instant Playback with Built-in Audio Player

To enjoy your MID compositions, you don’t even have to convert them. The built-in player allows listening to MID/KAR/RMI tracks with all the sound fonts and special effects already applied in real time – no conversion required!

Batch Conversion and Flexible Output Options

The best MIDI Converter comes with fully-featured batch mode, allowing converting entire folders full of MIDI tracks into the format of your choice. You can opt to use a lossless codec to get the ultimate sound quality, or select MP2, AAC, WMA, WAVAiff or AAC if you need the files in your phone or car player.

Instant Playback with Built-in Media Player

To enjoy your compositions, you don’t even have to convert them. The built-in player allows listening to MID files with all the sound fonts and special effects already applied in real time – no conversion required!


Main Features:

  • Latest sound patch technologies guarantee the ultimate sound quality
  • Custom SoundFont support
  • Special effects such as customizable reverb, echo and chorus
  • Intuitive drag-and-drop user interface
  • Batch mode and built-in tag editor
  • Input: .MID, .MIDI, .RMI, .KAR
  • Output: .MP3, .WMA, .AAC, .WAV, .M4A, .AIFF, .FLAC, .MP4, .OGG etc.
  • Instant playback with built-in player
  • Real-time audio conversion
  • Option to preserve folder structure
  • Real-time audio conversion
  • User interface available in 12 languages

Minimum System Requirements

  • Microsoft Windows XP (32-bit and 64-bit)
  • 1.0 GHz or faster processor
  • 512 MB RAM
  • 10 MB free hard drive space

Recommended System Requirements

  • Windows 7/Windows 8/Windows 10 (32-bit and 64-bit)
  • Pentium 4 or faster multi-core processor
  • 1 GB RAM
  • 10 MB free hard drive space

midi converter