> For the complete documentation index, see [llms.txt](https://www.sonificationkit.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.sonificationkit.com/data-sonification/concepts/sound-and-data-parameters.md).

# Sound and data parameters

When creating a data sonification, there are many choices to be made regarding **what aspects of the data** are converted to sound, and **what characteristics of sound** are used in this representation.&#x20;

In [parameter mapping](/data-sonification/methods.md), dimensions of data are matched to dimensions of sound. Check out Matt Russo's [description of data-related choices](https://www.youtube.com/watch?v=DUdLRy8i9qI\&t=71s), and Jordan Wirfs-Brock's [exploration of sonic dimensions](https://www.youtube.com/watch?v=ARjgKuFyXE8\&t=1143s).&#x20;

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><a href="https://www.youtube.com/watch?v=DUdLRy8i9qI&#x26;t=71s"><strong>Matt Russo describes data-related choices.</strong></a></td><td><a href="/files/zt49EvuiRgn869lAVXzf">/files/zt49EvuiRgn869lAVXzf</a></td><td><a href="https://www.youtube.com/watch?v=DUdLRy8i9qI&#x26;t=71s">https://www.youtube.com/watch?v=DUdLRy8i9qI&#x26;t=71s</a></td></tr><tr><td><a href="https://www.youtube.com/watch?v=ARjgKuFyXE8&#x26;t=1143s"><strong>Jordan Wirfs-Brock explores dimensions of sound.</strong></a></td><td><a href="/files/4kJ3nNovkC4sb7oAqHqE">/files/4kJ3nNovkC4sb7oAqHqE</a></td><td><a href="https://www.youtube.com/watch?v=ARjgKuFyXE8&#x26;t=1143s">https://www.youtube.com/watch?v=ARjgKuFyXE8&#x26;t=1143s</a></td></tr></tbody></table>

### Data Choices

&#x20; *Dimensions of data that can be converted to sound*

* **Mapping function / data selection**  <i class="fa-table">:table:</i> Which variables of the data set are getting converted to sound?
* **Polarity** <i class="fa-plus-minus">:plus-minus:</i>  What is the direction of relationship between your data values and audio parameters?\
  (For example, are larger numbers matched with higher pitch/volume? Or it is vice versa?)
* **Range** <i class="fa-person-hiking">:person-hiking:</i>  The span of audio values to which the data is transferred, such as a range of musical notes or volume.&#x20;
* **Scaling** <i class="fa-arrow-up-right-and-arrow-down-left-from-center">:arrow-up-right-and-arrow-down-left-from-center:</i>  Mathematical relationship between data and audio parameters, such as linear or logarithmic.

### Audio Choices

*Dimensions of sound to represent the data*

* **Pitch**  <i class="fa-piano-keyboard">:piano-keyboard:</i>  Note frequency (Hz). In other words, "highness" vs. "lowness."&#x20;
* **Timbre / texture**  <i class="fa-saxophone">:saxophone:</i>  The quality of a sound or tone; the distinct "color" of a sound.
* **Loudness / volume** <i class="fa-volume-high">:volume-high:</i>  Perceived level of sound that is heard by the listener, related to the magnitude of a sound.
* **Tempo**  <i class="fa-person-running-fast">:person-running-fast:</i>  Speed of the audio (BPM).
* **Rhythm**  <i class="fa-drum">:drum:</i>  Pattern and cadence with which sound is played.
* **Duration**  <i class="fa-road">:road:</i>  The length of time the sound lasts.&#x20;
* **Panning / stereo image**  <i class="fa-speaker">:speaker:</i>  The position of audio from left to right speaker or headphone.

<div align="center"><figure><img src="/files/zh0aYR4ERJ307Ib3fGHj" alt="" width="563"><figcaption><p><a href="https://sonification.de/handbook/download/TheSonificationHandbook-HermannHuntNeuhoff-2011.pdf">Data Sonification Handbook</a>, page 366.</p></figcaption></figure></div>
