Automatic Analysis of Voice Fundamental Frequency and Intensity Using a Visi-Pitch

1983 ◽  
Vol 26 (3) ◽  
pp. 467-471 ◽  
Author(s):  
Yoshiyuki Horii
Keyword(s):  
Fundamental Frequency ◽  
Automatic Analysis ◽  
Research Note ◽  
Analog To Digital Converter ◽  
Digital Converter ◽  
Wide Spread ◽  
Analog To Digital ◽  
Speech Pathologists ◽  
Voice Fundamental Frequency

This research note describes a method for automatic analysis of voice fundamental frequency and intensity using a Visi-Pitch Model 6087 and an Apple II computer equipped with an analog-to-digital converter (TecMar AD-211). The method provides a simple means of quantizing fundamental frequency and intensity and extracting their distributional characteristicss from the Visi-Pitch, an instrument which is gaining wide-spread use by speech pathologists, audiologists, and linguists for clinical and research purposes.

Analog-to-Digital Converter

1988 ◽  
Author(s):  
Frank Morris ◽  
W. R. Wisseman
Keyword(s):  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital

scholarly journals An Optical Analog-to-Digital Converter with Enhanced ENOB Based on MMI-Based Phase-Shift Quantization

Photonics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 52
Author(s):  
Yue Liu ◽  
Jifang Qiu ◽  
Chang Liu ◽  
Yan He ◽  
Ran Tao ◽  
...  
Keyword(s):  
Phase Shift ◽  
Multimode Interference ◽  
Analog To Digital Converter ◽  
Effective Number ◽  
Digital Converter ◽  
Analog To Digital ◽  
Mmi Coupler ◽  
Simulation Results ◽  
Optical Analog ◽  
Optical Quantization

An optical analog-to-digital converter (OADC) scheme with enhanced bit resolution by using a multimode interference (MMI) coupler as optical quantization is proposed. The mathematical simulation model was established to verify the feasibility and to investigate the robustness of the scheme. Simulation results show that 20 quantization levels (corresponding to 4.32 of effective number of bits (ENOB)) are realized by using only 6 channels, which indicates that the scheme requires much fewer quantization channels or modulators to realize the same amount of ENOB. The scheme is robust and potential for integration.

Sign in / Sign up

Export Citation Format

Share Document