Category Archive: Music

Feb 05

Using Hidden Markov Models for staff line removal (in OMR) [w/code]

From left to right: Original binarized images, staff lines annotated by HMM,  staff lines removed.

So lately I'm into Optical Music Recognition (OMR), and a central part of that is doing staff line removal. That is when you get rid of the staff lines that obscure the musical symbols to make recognition much easier. There are a lot of ways to do it, but I'm going to share with you …

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Oct 13

Touch up your sound with SoundTouch [w/code]

Screen Shot 2014-10-13 at 11.55.42 AM

How to stretch or compress sound easily without changing pitch using the excellent SoundTouch library, with a little help from Qt.

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Sep 30

FFMpeg with Lame MP3 and streaming for the Arduino Yun

So, I've been trying to stream audio off of a USB microphone connected to an Arduino Yun. Looking into it online I found some examples using ffserver & ffmpeg, which sounded like they could do the trick. However right from the start I've had many problems with playing the streams on Android and iOS devices. …

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Jan 04

Trying out my mashup skills

This is not proper technical thingy, but I took some time to try out some audio skills by doing somewhat obvious mashup Came out pretty good, in my opinion Sara Baraeilles's "Brave" and Katy Perry's "Roar" sound very similar. So I took two acapellas and instrumental and mixed them together. Enjoy (or.. not)

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