Automatic tempo estimation is a useful tool for musicians for the purposes of transcription and also for audio researchers as we can use the tempo of a piece of music to inform other types of analysis such as pitch detection or chord detection. Since musically significant events such as chord changes tend to occur on
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Bringing Out The Centre
Following on from the previous post I wanted to take a look at how you can isolate the various tracks from stereo audio. Without having the official a cappella studio tracks in the first place, it is possible to recover these from the stereo audio. For the cleanest results unfortunately you’ll need the official instrumental
Continue reading »Neil Young Still Hates Digital Music
Well sort of. He’s been ranting a bit again recently. He’s always hated MP3 and CD as media. He was a big proponent of DVD-A (96kHz, 24 bit) and now claims he was working on another format with Steve Jobs to return to the actual potential of digital music. It’s true that a lot of
Continue reading »Creative Convolution – Part 2
In Part 1 we described the Impulse Response and how that can be used to characterize a room, which can be used to add a specific reverb to an audio track. In this post we’ll explore the process by which this is carried out, which is convolution. So what is convolution? If you have two
Continue reading »Creative Convolution – Part 1
Most musicians who also hang around on the other side of the mixing desk will likely have encountered convolution in its most common application for musicians and producers – reverb. A convolution reverb (such as the well known Waves IR-1 plugin) is a great way to recreate a physical space in a recording, such as
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