Ableton Live and Push

2021 ◽  
pp. 40-45
Author(s):  
Will Kuhn ◽  
Ethan Hein
Keyword(s):  
Recording Device ◽  
Digital Audio ◽  
Arbitrary Length ◽  
Wide Range ◽  
Pro Tools

Ableton Live and the Push controller support a wide range of expressive, creative, and educational possibilities. This chapter covers how Live and Push differ from other digital audio workstations (DAWs) and MIDI interfaces. The DAW functions like a score and a suite of instruments, as well as a recording device—a tool for creating music from scratch, rather than simply documenting it. Ableton Live was originally designed for onstage performance, and its compositional workflow has an appealing improvisational aspect. However, rather than performing entire songs as DJs do, Live users play back clips and patterns of any arbitrary length. The Push’s tactile clip-launching interface is a genuinely new visualization and organization scheme, with potentially profound significance for users’ musical imaginations. Since Ableton Live is not the best DAW for every case, the chapter also compares it to three prominent alternatives: Avid’s Pro Tools, Apple’s Logic Pro, and Image-Line’s FL Studio.

Mobile Heart Monitoring System Prototype Based on the Texas Instruments Hardware

2016 ◽  
Vol 7 (1) ◽  
pp. 64-84 ◽  
Author(s):  
Andrey Kuzmin ◽  
Maxim Safronov ◽  
Oleg Bodin ◽  
Mikhail Petrovsky ◽  
Anton Sergeenkov
Keyword(s):  
Monitoring System ◽  
Gain Control ◽  
Battery Life ◽  
Recording Device ◽  
Wireless Data ◽  
Original Algorithm ◽  
Energy Efficiency Improvement ◽  
Heart Monitoring ◽  
Wireless Data Transmission ◽  
Wide Range

This paper describes a design of prototype of mobile heart monitoring system based on the Texas Instruments ADS1298R ECG front end and ??2540 wireless data transmission chip. The described design and technical details allow developing a new mobile heart monitoring system consisting of ECG recording device, mobile computer (smartphone or tablet). The original algorithm of energy efficiency improvement by adaptive gain control is proposed and experimentally tested. Increase of battery life is from 1% to 19% depending on concrete conditions. The new algorithm of J-point detection is described and examined on the test ECG database. The detection rate is from 88% to 93%. It will allow mobile monitoring system to inform the user about any signs of dangerous heart condition in ECG. The paper also describes experimental results of wireless protocol bandwidth and contact break detection. The results confirm the efficiency of the proposed technical solutions to mobile heart monitoring for wide range of applications from sports and fitness to monitoring for medical reasons.

scholarly journals Quantifying the risk of hemiplasy in phylogenetic inference

2018 ◽  
Author(s):  
Rafael F. Guerrero ◽  
Matthew W. Hahn
Keyword(s):  
Risk Factor ◽  
Convergent Evolution ◽  
Phylogenetic Inference ◽  
Species Tree ◽  
New Method ◽  
Gene Trees ◽  
Arbitrary Length ◽  
Wide Range

AbstractConvergent evolution is often inferred when a trait is incongruent with the species tree. However, trait incongruence can also arise from changes that occur on discordant gene trees, a process referred to as hemiplasy. Hemiplasy is rarely taken into account in studies of convergent evolution, despite the fact that phylogenomic studies have revealed rampant discordance. Here, we study the relative probabilities of homoplasy (including convergence and reversal) and hemiplasy for an incongruent trait. We derive expressions for the probabilities of the two events, showing that they depend on many of the same parameters. We find that hemiplasy is as likely— or more likely—than homoplasy for a wide range of conditions, even when levels of discordance are low. We also present a new method to calculate the ratio of these two probabilities (the “hemiplasy risk factor”) along the branches of a phylogeny of arbitrary length. Such calculations can be applied to any tree in order to identify when and where incongruent traits may be more likely to be due to hemiplasy than homoplasy.

Working with Time

2011 ◽  
Author(s):  
V. J Manzo
Keyword(s):  
Programming Language ◽  
Digital Audio ◽  
Interactive Performance ◽  
Pro Tools ◽  
Over Time

In this chapter, we will discuss aspects of time, rhythm, and the sequencing of events. When used in combination with what you know about generating pitch material, this chapter will help you to create interactive performance and composition systems, as well as create patches that demonstrate rhythmic complexity. By the end of this chapter, you will have created patches that can record and loop MIDI sequences as well as a number of patches that work with notes over time. Digital Audio Workstations (DAWs) are complex programs that generally all allow users to sequence music in some way by recording MIDI and audio, and make edits to the recording data. Popular commercial DAWs include Apple Logic and GarageBand, Digidesign Pro Tools, Sony Acid, and Ableton Live, to name a few. The last thing you’d probably want to do in Max is write a patch that operates like one of these DAWs. In fact, one of the great things about Max is that since it’s not a DAW but a programming language, it’s so unlike traditional DAWs that it allows you to write any kind of program you want (like our synth that used the wheels to play pitches in Chapter 2). However, there are some aspects of these DAWs that we will want to incorporate into our patches. In particular, recording MIDI and playing it back is made possible in Max through an object called seq (as in sequencer). 1. Create a new patch 2. Create a new object called seq The seq object can record and play back raw MIDI data. Since we’re dealing with raw MIDI data as opposed to just pitches, we’ll use the midiin and midiout objects. In fact, just to protect ourselves, let’s also include the “raw MIDI” version of flush, midiflush, to avoid any stuck notes.

Mobile Heart Monitoring System Prototype

2020 ◽  
pp. 153-175
Author(s):  
Andrey Kuzmin ◽  
Maxim Safronov ◽  
Oleg Bodin ◽  
Victor Baranov
Keyword(s):  
Monitoring System ◽  
Recording Device ◽  
Wireless Data ◽  
Heart Monitoring ◽  
Wireless Data Transmission ◽  
Wide Range ◽  
Technical Details ◽  
Point Detection ◽  
Technical Solutions ◽  
System Prototype

This chapter describes a design of prototype of mobile heart monitoring system based on the Texas Instruments ADS1298R ECG front end and NRF52832 wireless data transmission chip. The described design and technical details allow developing a new mobile heart monitoring system consisting of ECG recording device, mobile computer (smartphone or tablet). The algorithm for ECG recovery using a reverse filter, whose parameters are determined by means of bioimpedance measurement, is described. The new algorithm of J-point detection is described and examined on the test ECG database. The detection rate is from 88% to 93%. It will allow mobile monitoring system to inform the user about any signs of dangerous heart condition in ECG. The chapter also describes experimental results of wireless protocol bandwidth and contact break detection. The results confirm the efficiency of the proposed technical solutions to mobile heart monitoring for wide range of applications from sports and fitness to monitoring for medical reasons.

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