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Chroma Palette: chromatic maps of sound as granular synthesis interface

Published: 06 June 2007 Publication History

Abstract

Chroma based representations of acoustic phenomenon are representations of sound as pitched acoustic energy. A framewise chroma distribution over an entire musical piece is a useful and straightforward representation of its musical pitch over time. This paper examines a method of condensing the block-wise chroma information of a musical piece into a two dimensional embedding. Such an embedding is a representation or map of the different pitched energies in a song, and how these energies relate to each other in the context of the song. The paper presents an interactive version of this representation as an exploratory analytical tool or instrument for granular synthesis. Pointing and clicking on the interactive map recreates the acoustical energy present in the chroma blocks at that location, providing an effective way of both exploring the relationships between sounds in the original piece, and recreating a synthesized approximation of these sounds in an instrumental fashion.

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  • (2017)Rhythmic Concatenative Synthesis for Electronic Music: Techniques, Implementation, and EvaluationComputer Music Journal10.1162/COMJ_a_0041241:2(21-37)Online publication date: Jun-2017
  1. Chroma Palette: chromatic maps of sound as granular synthesis interface

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    Published In

    cover image ACM Other conferences
    NIME '07: Proceedings of the 7th international conference on New interfaces for musical expression
    June 2007
    484 pages
    ISBN:9781450378376
    DOI:10.1145/1279740
    • Conference Chairs:
    • Carol Parkinson,
    • Eric Singer
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    • New York University Music Technology Program
    • Harvestworks
    • LEMUR: League of Electronic Musical Urban Robots

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    Association for Computing Machinery

    New York, NY, United States

    Publication History

    Published: 06 June 2007

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    Author Tags

    1. chroma
    2. dimensionality reduction
    3. granular synthesis

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    • (2017)Rhythmic Concatenative Synthesis for Electronic Music: Techniques, Implementation, and EvaluationComputer Music Journal10.1162/COMJ_a_0041241:2(21-37)Online publication date: Jun-2017

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