Blogs

Jazz in your blues

Submitted by mic on Wed, 03/28/2018 - 21:35

Long ago I had picked up "All Blues for Jazz Guitar – comping styles, chords, and grooves" by Jim Ferguson. This book is about putting some jazz in your blues (or some blues in your jazz?). When I considered myself an "intermediate" guitar player and had the opportunity to play in jam sessions with musicians, who were well ahead of me, this book gave me plenty of good pointers. It allowed me to understand how music can become less rigid and without boundaries, how rhythm and melody can play off of each other, and how music theory can become practice.

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SongDasher

Submitted by mic on Wed, 03/28/2018 - 21:33

I was prompted the other day to write a review of SongDasher – a piece of software for the iPhope or iPad from Far Out Notions, LLC. What I got in an e-mail was: "SongDasher is a streamlined song crafting tool with six tracks of audio, programmable drum beats, and flexible section-by-section composition. SongDasher allows musicians to quickly and easily capture musical ideas, and share their compositions with friends and bandmates through a variety of social media and cloud services". And so it does. Here is the link to SongDasher.

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Demystifying digital signal processing for audio

Submitted by mic on Wed, 03/28/2018 - 21:26

We have been collecting some posts DSP and some DSP related wiki topics. Although we have a lot, we have been putting everything together a bit haphazardly. Anton Kamenov was nice enough to organize a lot of the DSP information on this website into a book: Digital Signal Procession for Audio Applications. The book is a very solid foundation for anyone who wants to know more about how DSP in audio comes about. It is well organized and derives a lot of the DSP operations that we take for granted in a simple and transparent manner. It also adds a lot of useful information – some that we have already started adding to this site and some that is still not up.

Here are some topics of interest in the book.

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The complex simple delay

Submitted by mic on Wed, 03/28/2018 - 21:19

I use the words "simple delay" to describe the simplest of practical recording effects – an effect that produces one repetition of the input signal with some delay in time and usually with some decay in amplitude. More complex delays can have additional parameters: feedback, delay and decay sweeps, multiple "taps" to output, etc. Even simple delays, however, can be very interesting and the following are example settings that can produce great results.

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Faster magnitude response computations

Submitted by mic on Wed, 03/28/2018 - 21:17

We were working recently on version 3 of Orinj. We wanted to improve the graphs of several of the DSP effects in Orinj to include the actual magnitude response of the effect. This included effects that have graphs with some equalization or some frequency type filters – the graphic and parametric equalizer, the reverb (because of its parametric equalizer), and the notch filter. This post is about computing the actual magnitude response quickly and efficiently.

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Music and the brain

Submitted by mic on Tue, 03/27/2018 - 21:29

I just watched the 2009 documentary "The Musical Brain" – various neuroscientists studying the responses of the brain to the listening, composing, and dancing with music. Most interestingly, one professor (Daniel J. Levitin) studied what happens in Sting's brain when he listens to or composes music. Also interesting, Wyclef Jean was talking, using the sleepiest voice and expressions that I have ever seen, about how his eyes lighten up and how excited he gets when he hears or plays music.

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