Optimal Parameter Estimation and Performance Modelling in Melodic Contour-based Qbh Systems
نویسندگان
چکیده
This paper analyses factors affecting the performance of a melodic contour-based QBH system, and presents an analytical model for the same. We present a constrained optimisation framework to find the optimal values of performance-affecting system parameters.
منابع مشابه
Melodic Contour-based Qbh Systems: Analytical Modeling and Performance Evaluation
The paper proposes an analytical modeling of important parameters in a melody-based Query-byHumming system, and proposes a new function to characterise the performance of such systems. Results of experiments with analytical models, as well as an actual QBH system give results consistent with empirical results mentioned in the literature.
متن کاملAnalyzing the influence of pitch quantization and note segmentation on singing voice alignment in the context of audio-based Query-by-Humming
Query-by-Humming (QBH) systems base their operation on aligning the melody sung/hummed by a user with a set of candidate melodies retrieved from polyphonic songs. While MIDI-based QBH builds on the premise of existing annotated transcriptions for any candidate song, audiobased research makes use of melody estimation algorithms for the songs. In both cases, a melody abstraction process is requir...
متن کاملA Stochastic Representation of the Dynamics of Sung Melody
In this paper, we propose a stochastic representation of a sung melodic contour, called stochastic phase representation (SPR), which can characterize both musical-note information and the dynamics of singing behaviors included in the melodic contour. The SPR is constructed by fitting probability distribution functions to F0 trajectories in the F0-∆F0 phase plane. Since fluctuations in singing c...
متن کاملQBH System Using Melody Matching Model based on a String Pattern Matching mechanism of Frequency Contours
Query by humming (QBH) refers to music information retrieval systems where short audio clips of singing or humming act as queries. Melody is considered as the most important feature in the queries and the songs. This system proposes a QBH system Using Melody Matching Model Based on a string pattern matching mechanism of frequency contours, which is used to align the input pitch frequency contou...
متن کاملThe effect of parameter estimation on Phase II control chart performance in monitoring financial GARCH processes with contaminated data
The application of control charts for monitoring financial processes has received a greater focus after recent global crisis. The Generelized AutoRegressive Conditional Heteroskedasticity (GARCH) time series model is widely applied for modelling financial processes. Therefore, traditional Shewhart control chart is developed to monitor GARCH processes. There are some difficulties in financial su...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005