With the advent of high-resolution recording and playback systems, a proportion of the ultrasonic frequency spectrum can potentially be utilized as a carrier for imperceptible data, which can be used to trigger events or to hold metadata in the form of, for example, an ISRC (International Standard Recording Code), a website address or audio track liner notes. The Sonic Quick Response Code (SQRC) algorithm was previously proposed as a method for encoding inaudible acoustic metadata within a 96 kHz audio file in the 30-35 kHz range. This paper demonstrates the effectiveness of the SQRC decode algorithm when acoustically transmitted over distance while evaluating the degradation effect of adding ultrasonic banded white noise to the pre and post transmission SQRC signal.

Authors: Sheppard, Mark; Toulson, Rob
Affiliations: Anglia Ruskin University, Cambridge, Cambridgeshire, UK; University of Westminster, London, UK(See document for exact affiliation information.)
AES Convention: 146 (March 2019) Paper Number: 10197
Publication Date: March 10, 2019 Import into BibTeX
Subject: MIR
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=20330

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:   /conv/146/10197.pdf

Start a discussion about this paper!