Stroe, Octavian (2017) Valve vs. solid-state microphone preamplifier: a comparative study. Fields: journal of Huddersfield student research, 3 (1). ISSN 2057-0163
|
PDF
- Published Version
Available under License Creative Commons Attribution. Download (1MB) | Preview |
Abstract
This paper outlines research carried out to determine the perceptual and objective differences between a solid-state and a valve preamplifier running at low voltages. ABX testing was employed and showed that there were perceivable differences between the two systems. A comprehensive objective analysis was performed, which utilised tests for total harmonic distortion + noise (THD+N), intermodulation distortion (IMD), THD versus frequency and frequency response in order to ensure the two systems were performing in their linear region. In addition, MIRToolbox was utilised to extract low-level features such as spectral centroid, skewness and novelty. The electronic measurements combined with the MIRToolbox support the listeners’ subjective descriptors that there is a difference in brightness and harmonic content between the two types of preamplifiers. A correlation theory was developed, which linked the objective and the subjective measurements.
Item Type: | Article | ||||||||
---|---|---|---|---|---|---|---|---|---|
Contributors: |
|
||||||||
Uncontrolled Keywords: | Valves; solid-state; preamplifiers; objective and subjective measurements; THD+N; IMD; spectral centroid; skewness; | ||||||||
Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
||||||||
Schools: | School of Computing and Engineering Teaching and Learning Institute |
||||||||
Depositing User: | Megan Taylor | ||||||||
Date Deposited: | 28 Feb 2017 11:57 | ||||||||
Last Modified: | 28 Mar 2018 09:00 | ||||||||
URI: | http://eprints.hud.ac.uk/id/eprint/31353 |
Downloads
Downloads per month over past year
Repository Staff Only: item control page
![]() |
View Item |