Apr 30, 2022 Replies: 2 A small music tool to detect simple chord (maj, min, 7) and change speed in real time while playing a preloaded mp3 song. Although I have better chord analyzer tool for learning guitar, I want to make one to see how it works, and realized that even to detect simple chords is a quite hard job. I am happy that B4J can make applications run quite fast for signal processing tasks and make UI much easier. If you want to try: java -jar Mp3muser.jar (using java version "1.8.0_202", may have many bugs) Attachments Mp3muser.jar Mp3muser.jar 460.9 KB · Views: 545 Click to expand...
A small music tool to detect simple chord (maj, min, 7) and change speed in real time while playing a preloaded mp3 song. Although I have better chord analyzer tool for learning guitar, I want to make one to see how it works, and realized that even to detect simple chords is a quite hard job. I am happy that B4J can make applications run quite fast for signal processing tasks and make UI much easier. If you want to try: java -jar Mp3muser.jar (using java version "1.8.0_202", may have many bugs)
kimstudio Active Member Licensed User Longtime User May 3, 2022 #3 After mp3 loaded the key of the song is identified with much better result then the chord detection. With key detected as a priori knowledge the chord detection could also be improved later. BTW: I am using canvas for all drawings including buttons, I am confused on whether in B4J the canvas needs to be invalidated, seems not.
After mp3 loaded the key of the song is identified with much better result then the chord detection. With key detected as a priori knowledge the chord detection could also be improved later. BTW: I am using canvas for all drawings including buttons, I am confused on whether in B4J the canvas needs to be invalidated, seems not.
