ODDSound is a UK-based music technology company focused on microtuning tools for electronic music production. It was founded by Damon Hancock, audio developer Dave Gamble (of DMGAudio), and producer/coder Oli Cash (known as Far Too Loud), with significant input from Richard D. James (Aphex Twin), who had long been dissatisfied with the state of tuning support in modern DAWs and soft synths.

The company is best known for the MTS-ESP Suite, a master plugin and protocol that allows any number of compatible soft synths and effects to receive dynamic tuning data from a single source in real time. The suite includes the MTS-ESP master plugin, MR Editor for designing tunings, and an MTS-ESP MIDI Client for routing tuning to external hardware via MIDI Tuning Standard or MPE. A free cut-down version, MTS-ESP Mini, is also offered.

Alongside its commercial products, ODDSound maintains an open-source C/C++ library on GitHub that third-party plugin developers can integrate to add native MTS-ESP support. The company's niche sits at the intersection of alternative tuning theory, just intonation, and xenharmonic composition, and its tools are aimed at producers looking to work outside 12-tone equal temperament.

ODDSOUND has 1 product cataloged on Equipboard, including Utility Plugins. Their gear is featured by 1 artist, with the strongest followings in Electronic. Notable users include Aphex Twin.