Simultaneous Measurement of Multiple Acoustic Attributes Using Structured Periodic Test Signals Including Music and Other Sound Materials

TL;DR

This paper presents a comprehensive framework for simultaneously measuring multiple acoustic properties using structured periodic test signals, including music, enabling real-time assessment and open-source tools.

Contribution

A novel framework that allows concurrent measurement of various acoustic attributes with support for complex sound materials like music, extending traditional methods.

Findings

Framework unifies measurement techniques like swept-sin and MLS.

Real-time, interactive measurement tools developed and released as open-source.

Framework successfully applied to evaluate pitch extraction algorithms.

Abstract

We introduce a general framework for measuring acoustic properties such as liner time-invariant (LTI) response, signal-dependent time-invariant (SDTI) component, and random and time-varying (RTV) component simultaneously using structured periodic test signals. The framework also enables music pieces and other sound materials as test signals by "safeguarding" them by adding slight deterministic "noise." Measurement using swept-sin, MLS (Maxim Length Sequence), and their variants are special cases of the proposed framework. We implemented interactive and real-time measuring tools based on this framework and made them open-source. Furthermore, we applied this framework to assess pitch extractors objectively.