Interactive study of co-occurrence

Sensor Use in a DIY community: NIME

In this project, I have explored the sensor use in new interfaces for musical expression – typical DIY realm – as manifested in the NIME Conference (New Interfaces for Musical Expression).

For this, I have used several R tools for social network analysis (SNA). My dataset consists of 266 conference papers published between 2009 and 2013, roughly all papers that deploy at least one type of sensing in this time period.

Although it has been claimed that specifications for artistic tools are harder than those for military applications, this study raises a paradox showing that in most of the cases, DMIs (Digital Musical Instruments) are based on a few basic sensors types and unsophisticated engineering solutions, not taking advantage of more advanced sensing, instrumentation and signal processing techniques that could dramatically improve their response. We aim to raise awareness of limitations of some DIY solutions and to assert the benefits of advanced electronics instrumentation design in DMIs. For this, we propose the use of specialized sensors such as strain gages, advanced conditioning circuits and signal processing tools such as sensor fusion. We believe that careful electronic instrumentation design may lead to more responsive instruments.

Interactive visualization of SNA

Interactive study of co-occurrence

Interactive study of co-occurrence (year selection implementation under design)

Trends, co-occurrence analysis, clusters, etc

Co-occurrence matrix map plus Ward hierarchical clustering for 3 clusters. As the co-occurrences of an aspect with itself were shown in Table 1, the main diagonal is blank for clarity. Upper and lower matrices report the same information. The green and orange squares present the 4 clusters solution.

Co-occurrence matrix map plus Ward hierarchical clustering for 3 clusters. As the co-occurrences of an aspect with itself were shown in Table 1, the main diagonal is blank for clarity. Upper and lower matrices report the same information. The green and orange squares present the 4 clusters solution.

Embedded and independent use of MARG sensors. (a) accelerometer; (b) gyroscope; (c) magnetometer.

Embedded and independent use of MARG sensors. (a) accelerometer; (b) gyroscope; (c) magnetometer.

Simple improvements on electronic instrumentation

Voltage divider topologies. (a) simplest solution; (b) output offset adjustment; (c) safety improvement; (d) safety and finer adjustment.

Voltage divider topologies. (a) simplest solution; (b) output offset adjustment; (c) safety improvement; (d) safety and finer adjustment.

Buffer with adjustable gain and offset.

Buffer with adjustable gain and offset.

Comparator with hysteresis.

Comparator with hysteresis.

Instrumentation amplifier.

Instrumentation amplifier.

For open access to this journal article, please visit the Sensors Journal.