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Split Midi Tracks, Midi Splitter

admin — Thu, 09 May 2019 07:37:41 +0000

This tool separates the tracks of MIDI files and saves each track as a separate MIDI file. For example, you have a MIDI file that contains three tracks, namely a piano, a guitar, and a drum. This tool can separate them and output three files.
The tool provides two options, one is whether the first channel is output or not. In general, the first channel does not contain sound. You can choose to ignore the output.
The second is whether the output file contains the first channel. If “No” is selected, a single channel MIDI file is output. If you select “Yes”, the two channels of MIDI files are output. The first channel is the first channel of the original MIDI file.

Change Midi Volume

admin — Wed, 08 May 2019 07:05:13 +0000

This is an online tool that changes the volume of MIDI files.
Some players can adjust the volume of MIDI. But this tool directly changes the MIDI file. Make it sound louder or lower.
You can upload MIDI files in batches and change the volume at once.
There are two ways to change the volume, one is “multiple”, and the other is “absolute”. If you choose the “multiple”, you can enter 0.1 to 16. If it is greater than 1, it will become higher, such as 3 and 3 times higher. If it is less than 1, it will become lower, such as 0.5, which is 1 times lower. If it is equal to 1, it does not change.
If you choose the “absolute”, each tone is set to this volume, ranging from 1 to 127.

Change Midi Speed, Change duration of Midi file

admin — Wed, 08 May 2019 06:48:06 +0000

This tool can adjust the playback speed of MIDI files to become faster or slower. Therefore, the duration of the MIDI file is also changed. Some players can adjust the playback speed. But sometimes you need to change the MIDI file between. You can change MIDI files in batches.

For the “Speed” options, you can enter 0.1 to 16. If it is greater than 1, it will become faster, such as 3, which is 3 times faster. If it is less than 1, it will become slower, such as 0.5, which is 1 time slower. If it is equal to 1, it does not change.

Change Midi BPM

admin — Wed, 08 May 2019 02:46:16 +0000

This tool provides batch modification of BPM values for MIDI files. BPM is a public variable in MIDI files. It is a beat unit. In general, the default value of BPM is 120. The general range is between 96 and 480. In some cases, for example, if you want to merge two MIDI files, if their BPM values are different, an unexpected situation will occur. The correct approach is to change their BPM to the same value before merging.
This tool provides an option to set whether to change the BPM worth while keeping the music for the same length of time. If you don’t do anything, changing BPM will change the duration of the MIDI file.

Audio to text, convert mp3 to text

admin — Fri, 15 Apr 2016 08:20:14 +0000

This is an online tool for recognition audio voice file(mp3,wav,ogg,wma etc) to text.

This tool base by CMU Sphinx, which a open source speech recognition toolkit from CMU. It is a free and online tool.

You just upload the audio file in below, then click “convert” to convert, then download the result text file.
Now only support recognition English.

This tool may take longer time to convert, please be patient. Maximum file upload can not exceed 3M. We estimate that convert 1M size MP3 file may takes 45 seconds.

Sample file download:
wochitmar_txt.mp3 – wochitmar_txt.txt

–update on 2017-01-19–
add a new recognition engine: baidu, which is better and faster than CMU Sphinx

Convert WAV ( or MP3, OGG, AAC, WMA) to MIDI

admin — Fri, 28 Jun 2013 12:57:20 +0000

Convert WAV or MP3, OGG, AAC, WMA etc stream audio file to MIDI file. MIDI can be used in more player. and also be used in more games software. MIDI file is very small.

Voice Tool: Voice Recorder

Convert MIDI to MP3 ( or WAV, OGG, AAC, WMA)

admin — Wed, 19 Jun 2013 14:16:02 +0000

Convert MIDI to MP3 stream audio file( or WAV, OGG, AAC, WMA formats). MIDI file can be very small, but can’t play in most device. So some time you need convert it to popular format like mp3, wav which can Continue reading →

Convert to WMA

admin — Sat, 15 Jun 2013 15:02:24 +0000

Convert audio file to WMA format. or split audio part from video and convert to WMA file. WMA is created by Microsoft against MP3.

Convert to OGG

admin — Sat, 15 Jun 2013 14:49:42 +0000

Convert audio and video media file to OGG audio file. OGG is a open source and free audio compression.

Convert to AAC

admin — Sat, 15 Jun 2013 14:39:20 +0000

Convert media file to AAC format file. Split video to AAC audio file. AAC is a lossy compression for audio. which can generation better quality sound than MP3 in same bit rates.