MIDI Arpeggiation in Ableton Live

I recenty had the opportunity to take a good long look at Ableton Live’s Arpeggiator MIDI effect. I have used it here and there in the past, but recently discovered how flexible it is. There are many more algorithms (labeled as styles) than I have seen on other arpeggiators (a total of eighteen styles) for a broad variety of patterns. This example uses the “Thumb UpDown” style. Imagine playing a sequence of notes on your right hand starting with your thumb, then index finger, back to thumb, then middle, etc. and that’s kind of what this particular style does to the notes fed into it. Other capabilities of the arpeggiator include a velocity ramp to manipulate the dynamics of the patterns, and typical parameters like retriggering, gate, and groove.

Solar Arpeggio

Minim Sound Library for Processing.org

This sound was made by manipulating the frequency and panning of a sine wave using the Minim sound library in Processing. I found that adjusting the portamento parameter has some strange and interesting results. Certain values for portamento seem to cause the sine wave to degrade into noise when manipulating the frequency of the waveform. I captured several minutes of this noise and then selected a small segment that has some unusual modulation going on.

Minim Sine Wave Experiment

 

Port of Indianola Surf

Some people collect vials of sand from beaches they have visited, but I collect the sounds of the waves breaking on the shore. Well, it’s not much of a collection all I have so far is the Caribbean Sea while in Mexico and this example of Kitsap Peninsula surf recorded recently near the dock at the Port of Indianola in Washington. It’s a start, right?

I made several recordings at this location, but I particularly like this one that captures a sharp clicking sound made by palm sized rocks tumbling in the waves as they break on the shoreline. It was a very windy day, but despite a few bits in this example I managed to shield the wind from the PCM-50 by using a wind screen and putting my back to the wind behind the unit.

Port of Indianola Surf

 

Caution. Moving Walk is Nearing its End.

One of the nine forms of transportation I did not include in the compilation from a couple of entries ago was the moving walkway. On the way home from Seattle last Sunday I had a little extra time due to a delayed flight, so I used it to capture some more airport ambiance including the moving walkway. This one is located in the Seattle-Tacoma International Airport. The best part of the recording is the automated pre-recorded warning as passengers near the end of the walkway. The exact wording is, “Caution. moving walk is nearing its end. Please watch your step. Thank You.”

Moving Walkway

Normalized Binaural Back Alley Ambiance

One of the very first tests I made using my DIY binaural mics was this example of back alley ambiance. I stood as still as possible because this first version of the headset had a stiff cable that was very sensitive to vibrations. Birds and traffic are the most obvious sounds, but there is a high pitched screeching going on throughout the recording that became even more noticeable after applying normalization. While making the recording I actually took the mics out of my ears to make sure they weren’t generating the tone and I knew I wasn’t going crazy when it turned up in the recording. The sound is either a near by train, or a neighbor using a power tool. It sounds more like a tool, but the freight trains that go through my neighborhood make some very similar sounds to this.

Binaural Back Alley Ambiance