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Karaoke Sound Tools



Selecting input files


Karaoke Sound Tools are very simple to use. First you need to select the input file that you would like to process. You can do this by clicking on Browse button (you may use arrow to open the list of recently used files) or by dragging and dropping the file on Karaoke Sound Tools window.


Karaoke Sound Tools supports the following types of files:



Compressed audio file


Uncompressed audio file


Karaoke file containing both audio and video

MP3+G (aka MP3 and CDG file pairs)

MP3 audio file and CDG file containing lyrics


If you open an MP3 file Karaoke Sound Tools searches for a CDG file with a matching name and processes it together with the audio file.


Karaoke Sound Tools automatically create output file name by adding -KST to the input file name (eg. for My Song.mp3 input file output file will be My Song-KST.mp3). You may change the output file name and location, but the file format must be the same in both input and output files (ie. you cannot create WAV file from MP3 file, or vice versa).


After the file has been loaded playback and processing buttons become active so you may adjust the parameters and preview the results before processing.


Removing vocals


Vocal remover allows to remove lead vocal from most recordings. It uses spleeter technology developed by Deezer that has been made available to the world.


Vocal Remover has just two parameters.


Enable switch allows to turn vocal remover or and off.


Multiplex allows to create a special track that contains original song (with vocal) in the left channel and instrumental version (vocal-removed) in the right channel. Please note that your karaoke player needs to support multiplex to play this format.



Technical notes

Vocal Remover gives good results for most tracks. If having problems try using WAV files created from CD tracks, as MP3 compression changes the internal structure of the recording (converting MP3 to WAV will not improve quality).



Changing key of the song


Key changer section allows to change the pitch tone of the song up to twelve semitones either up or down. The current key change is displayed next to the key changer slider.


Please note that pitch shifting may slightly reduce the quality of the music. It gives better results for instrumental parts and worse for human voice.


Changing the tempo


Tempo change section allows to speed up or slow down the song while retaining the same key of the song.


It is possible to slow the song down twice and speed it up also two times. The best quality is achieved with small modifications, using extreme tempo chagnes can cause song degradation (especially if the song contains vocal).



Adjusting parameters and listening to the results


Preview section allows to listen to the processing results before processing the entire file.


To hear what the processed song would sound like click Play result button. The playback will start -- Current position slider represents the playback position. You may move it by dragging the slider's thumb. To hear the original song click Play original button -- you may switch between result and original song.


You may modify the settings during playback -- you will hear the change nearly immediately.


If Play in loop is selected, the playback will start over after it has reached the end. You may use Loop start and Loop end sliders to define the part of the song you would like to listen to.


Reset settings button reverts the setting to initial values.





Once you have set the settings to your liking click Run button. The output file will be created. If you are processing BIN file or there is a CDG file matching the input MP3 or WAV file, there will be second phase of processing during which Karaoke Sound Tools will perform necessary modifications to the lyrics.