【 Weak current College 】 audio listening evaluation method and terms

A set of audio playback sound quality is good or bad, and the objective technical indicators, and subjective listening experience. Because so far, some subjective feelings also unable to use the appropriate specification description, audio is for people to hear, so subjective listening becomes a test sound quality as a last resort, especially for consumers.

Human auditory organs and the brain, can be integrated in different specific gravity of various indicators of sound information, quick to sound judgement. However, this judgment that the biggest problem is not excluded from the evaluation of the subjective factors (such as the habits, tastes, quality, listen and experience, etc.), resulting in large dispersivity evaluation views, consistency. Sometimes evaluation instructions and no issues so that designers are complied with.

To do this, you must improve listening evaluation method requires evaluation of standard environment to determine the meaning of technology evaluation terminology, uniform terminology.
Quality evaluation terminology and about 30 more, its meaning and its related specification may refer to the relevant monograph. Here are the different levels are divided into three groups:
A minimum of term on,
1. clear (translucent)-turbidity
2. smoothing (round) — rough (dry)
3, bright-grey
4, plump-Crone (thin)
5, soft (soft pine)-spiked
6, intensity and powerful — gravis
B, the overall term
7, balance
8, three-dimensional sense of
9, Telepresence
10, spacious, openness
11, a sense of depth, distance
C, supplemental terms
12, stretch-blocking
13, soft-hard
14, ritzy, brilliance, moisture-free, dry
15, crisp, refreshing — fuzzy
16, Fusion-powder
17, level clearly — not clear
18, clear----------not clear (such as language definition)
Choose excellent sound sources as heard on the program sources, amateurs, especially should choose their own familiar programs. So, in different combinations in comparison to listen to the sound quality difference. For example, you want to buy a set of equipment, it is best to find a recording quality, nonlinear distortion relatively small, music and full of bass fragments of the CD, and in comparing the excellent mix of Audition, was very impressed, and then use it to test you purchase combinations are easier to recognize differences. In addition, the selected program type wide some more conducive to the sound of the equipment.
Room size and reverb time and frequency response, which will not only affect the frequency characteristics of speakers, and the impact of taxation on sound power and power reserve requirements. Readers in shoppers go off at an audition, audition, also taking into account the impact of these factors.
As a speaker in a three piece (CD player, amplifier, speakers) the importance of the quality and diversity of styles, buy generic is based on various factors, first of all, to establish sound model specifications and, depending on their characteristics and then matching amplifiers. As regards the choice of the CD player is relatively simple, as long as the attention to quality and price factors.