Real - Time Pitch Detection
نویسنده
چکیده
Finally, there is a definition problem between monophonic and polyphonic sounds. In the case of monophonic sound, the obvious definition is to pick the lowest partial as the fundamental frequency. In the case of polyphonic sounds, resulting either from one source (e.g., a piano) or from many sources (e.g., orchestra, choir), the definition is far more difficult, and approaches close to the problem of source separation should be used.
منابع مشابه
Comparison of Pitch Trackers for Real-time Guitar Effects
A comparison of various pitch tracking algorithms is presented and the suitability to use these pitch trackers for real-time guitar signal pitch tracking is investigated. The pitch tracking algorithms are described and the performance regarding latency and accuracy is evaluated.
متن کاملEfficient Pitch Detection Techniques for Interactive Music
Several pitch detection algorithms are examined for use in interactive computer-music performance. We define criteria necessary for successful pitch tracking in real-time and survey four tracking techniques: Harmonic Product Spectrum (HPS), Cepstrum-Biased HPS (CBHPS), Maximum Likelihood (ML), and the Weighted Autocorrelation Function (WACF).
متن کاملReal Time Voice Processing with Audiovisual Feedback: Toward Autonomous Agents with Perfect Pitch
We have implemented a real time front end for detecting voiced speech and estimating its fundamental frequency. The front end performs the signal processing for voice-driven agents that attend to the pitch contours of human speech and provide continuous audiovisual feedback. The algorithm we use for pitch tracking has several distinguishing features: it makes no use of FFTs or autocorrelation a...
متن کاملReal-time Pitch Tracking Based on C
This paper presents a novel pitch tracking method in the time domain. Based on the difference function as used in YIN -referred to as the sum magnitude difference square function (SMDSF) thereinafter -we propose two modified types of SMDSFs, with several methods presented to calculate these SMDSFs efficiently and without bias by using the FFT algorithm. In pitch estimation, every type of SMDSF ...
متن کاملReal-Time Pitch Tracking Algorithms Overview
In this short text, we wish to define clearly the requirements for real-time pitch tracking algorithms in musical applications, briefly introduce the major developments in the field over the last 40 years and provide some insight on what techniques might be more suitable for certain applications. 1. PITCH TRACKING REQUIREMENTS Historically, a lot of algorithms that are used in music processing ...
متن کاملReal-Time Implementation of Time Domain Harmonic Scaling of Speech for Rate Modification and Coding
Time domain harmonic scaling (TDHS) has been realized in real time on the Bell Laboratories digital signal processing (DSP) integrated circuit. It is an algorithm that can expand or compress the bandwidth and sampling rate of speech by taking advantage of the pitch structure in the speech signal. As such it is useful in a variety of speech applications including speech coding, speech enhancemen...
متن کامل