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  AD Stereo Changer 9 Dec 14

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  LyricsPlayer 2 Nov 15

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  Karaoke CD+G Creator 22 Jan 15

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  SoundCheck 29 Oct 15

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  Power Mixer 31 Dec 14

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  EC Speaker 27 Jan 15

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  BpmChecker 30 Oct 15

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  6-th order Butterworth low-pass 27 Jan 15