Acoustic Audio Samples for Javanese Gamelan Tuning Models

Empirical practices of Javanese gamelan tuning manifest three distinct acoustic models consisting of mulur, mungkret, and pleng. Relying solely on numerical frequency tables fails to provide a precise psychoacoustic representation for academic audiences. This analytical void demands a technical intervention through the provision of a dataset presenting audio samples and acoustic reconstructions based directly on the mathematical formulations of the AIN E-MBAT Calculator. All audio specimens within this repository constitute independent extractions produced utilizing the AIN E-MBAT Plugin within a Digital Audio Workstation (Logic Pro), alongside specific logarithmic interval (cents) calibrations to guarantee operational transparency and replication accuracy.

A comprehensive ensemble simulation is formulated through the Srepeg Slendro Nem repertoire sample executed across three absolute tuning frameworks ("Srepeg Nem Mulur.wav", "Srepeg Nem Mungkret.wav", "Srepeg Nem Pleng.wav"). The melodic structure of this composition actively traverses the organological spectrum from the G2 to the G7 registers. This musical condition directly facilitates the objective verification of interval deviation consistency at every register level. Listeners can dissect how the stretching characteristic (mulur), the shrinking characteristic (mungkret), and the absolute precision (pleng) construct a definitive sonic identity within a complete musical presentation.

Frequency behavior analysis on individual instruments operates through a sequential execution focusing on the demung, saron barung, and peking. The sample collection for each model sounds the pitches sequentially starting from nem, ji, ro, lu, mo, nem, continuing to ji on the upper octave to dissect the specific overtone structure of the physical blade material. This arrangement is structurally reinforced by a comparison file ("Comparation of Pleng-Mulur-Mungkret.wav") that alternates the three models rapidly at each tuning point. This comparative mechanism functions to guide human auditory perception in responding to the microtonal differences between the upper interval deviation (numpang), the lower interval deviation (sasap), and the central exact position (pleng).

Basic organological parameters require a measurable rational foundation to lock the acoustic calculation structure. This repository contains the spectral extraction evidence for the kempul and slenthem instruments ("Logic Pro (Kempul-Slenthem).mov" alongside its audio format). This frequency analysis maps the fundamental position of the kempulprecisely at the G2 register and the slenthem at the G3 register. This organological placement secures the calculation baseline to ensure that all inter-octave (antar-gembyang) interval deviations possess a structural anchor bound directly to the foundational laws of sound physics.