Professional speech on Sound Quality Evaluation

1. Sound width: low frequency bandwidth, low distortion, good linearity, large dynamic range, uniform distribution, outstanding energy in the Middle and Lower Frequency segments, suitable for the proportion of reverb sound, you can feel the wide, plump, and comfortable voice.
2. Narrow sound: The sound is high, the two sides of the bass are lacking, the frequency band is not wide, the reverb is short, and the intermediate frequency is too prominent. If the multi-frequency tone compensator is used to increase too much at 800Hz, it will feel the sound is narrow, the treble lacks the level, and the bass is full.
3. Bright Voice: In sound quality evaluation, it is also called brightness or brightness. In the whole range of the audio field, there are plenty of sub-, mid-, and high-pitched energy, and there are a variety of sub-voices and high-frequency upper limit of sub-sound decay is slow. At the same time, the echo ratio is suitable, the distortion is small, and the transient response is good. A friendly and active feeling.
4. Sound darkness: This is a reflection of the lack of high frequency and high frequency, especially in the 5000 ~ More than Hz has obvious attenuation, the sound conditions in the recording studio or audio room are poor, and the middle and high-frequency reverb time is short, the sound will be lost in the hearing.
5. Sound thick: sound thick and powerful, low-frequency plump, high-pitched, with a certain brightness, strong low-frequency and mid-low-frequency energy, especially 200 ~ The sound generated at Hz is suitable for the sound. The low-frequency sound is not lacking, and the distortion is small. The peak amplitude of the audio scale is not necessarily high, but the sound intensity is relatively large, the microphone can be properly processed in a closer manner, which can give people a thick feeling of near-scene sound, also known as thick.
6. Sound thinning: The sound is thin, with a lack of strength, poor resonance, a small amount of reverb sound, low average sound energy, and a lack of low and mid-low frequencies. The overall frequency response is between 300 and ~ If the decline below Hz is too large, it will feel thin, sometimes called a single.
7. Sound circle: the frequency band is wide, the sound quality is pure, the distortion is extremely small, there is a certain intensity and brightness, the bass is not muddy, the sound is not hard, the tweeting is not hair, the transient response is good, the ratio, characteristics, and time of the reverb sound to the direct sound are appropriate. The sound is full, bright, clear, and the fidelity is high.
8. Sound flat: circle and flat are commonly used in the music department, it refers to the meaning of narrow band, thin sound, non-pure sound quality, great distortion, insufficient reverb sound, and poor fullness, for example, multi-microphone and multi-channel recording, including the phase between the sound field in the recording studio, are very important. The phase is incorrect. The tone is flat and narrow, the bass is missing, the distortion is large, and the fullness is poor. It is also known as the trash.
9. soft voice: There are two concepts: poor comments: lack of high-pitched voices, lack of strong voice, and good comments. For example, some electricians in the south are referred to as waxy or soft, which refer to low distortion, good damping, Wide Frequency Response of low frequency segments, loose sound, low frequency, medium frequency, and moderate sound, feel soft and comfortable in terms of hearing.
10. Sound hard: the bass is missing, and there are many high-pitched notes. The upper limit of the high-frequency harmonic decay process is fast, the low-frequency reverb sound is short, there is obvious mutual adjustment distortion, the transient response is not good, and the damping is poor, there is a slight overload in the electro-acoustic system or recording process, or when the picture is too high during recording, it will produce a hard feeling.
11. Sound moisture: The distortion is very small, the frequency response is wide and even, and the sound gets out. There is a certain degree of sound and brightness. The ratio of the reverb sound to the direct sound is suitable, in particular, the moderate and high-frequency reverb sound is moderate, and the sound is not dry. It is round and contains water.
12. Sound preparation: sound preparation is mainly caused by poor sound conditions in the recording studio or audios, poor Sound diffusion, and short reverb time, especially the lack of moderate and high-frequency sound. It sounds dry and laborious. To improve the sound quality, some irregular arc diffusion boards are often added in the recording studio to increase the reflection sound, or the manual sound mixing device is used.
13. Sound passthrough: The distortion is very small, the transient response is good, the frequency response is wide and even, the middle and high frequencies come out, and the reverb sound is suitable. In particular, the middle and high frequencies are mixed to a sufficient quantity, and the bass is not Paster, the sound is clear and bright, the sound is good, and the sound is good.
14. Sound paste: it is vague. The sound is pasted into a single piece. It refers to too many bass, the low-frequency reverb time is too long, the lack of medium and high frequencies, the distortion of Intermodulation, or the sound seems to have been masked by a screen, in terms of hearing, the brightness and clarity are poor, and the layers are unclear.
15. Sound reality: Strong, medium and low frequency sound energy average uniform level is large, high frequency and medium frequency are not lacking, the proportion of direct sound is strong, the amount of sound is moderate, sound is thick, bright, small in distortion, and high in response.
16. Sound blank: The sound is too large, the proportion of incoming sound is too small, the sound source is not aligned with the sound source, the sound source is too far away from the sound source, or the sound source is accepted with a non-directional sound source in the case of large reverb, it will feel the sound is blank, the definition is poor, the main sound is not prominent, and even the sound source orientation is unclear.
17. Sound swing: There are two concepts for this term. First, it is a good evaluation. There are no gaps in high-pitched voices, a wide range of low-frequency sounds, a wide frequency response, and enough energy, sound relaxation is elastic, especially low-frequency reverb, which is slightly larger and less distorted. For example, the multi-frequency tone compensator is ~ Increase by 4 to 150Hz ~ When listening to music at six decibels, you will obviously feel the sound of the bass. Second, poor comments. If the bass is too exaggerated, the sound may be out of balance, or the sound source itself lacks low frequencies, the low-frequency harmonic peak in the speaker box may cause resonance or poor damping, if the transient response is not good, an additional Bass will be generated, which is dull in terms of hearing and lacks the brightness and level. This is a distortion and non-high fidelity sound quality.
18. Sound WOOD: There are many low-or middle-voices, Sound diffusion is poor, and the sound is short. It seems that the sound is inactive, dull, and lacks high-frequency and high-frequency sound.
19. Sound softening: the low frequency and low frequency energy is sufficient, the sound is thick, relaxed, not tight, and the sound is right. The sound is slightly larger, the distortion is small, the transient sound is good, and the medium frequency and high frequency are moderate, in the main frequency band, the frequency is relatively uniform and the brightness is certain. It sounds effortless, full and soft.
20. Sound tip: The frequency distribution is uneven, and there is a lack of Bass. In the middle and high areas, especially high-pitched components, the distortion is large and the ears are lost.
21. Sound width: the low-frequency sound density is large, the middle-and high-frequency sound is relatively small, the sound is rough, the intensity is large, and the clarity and sound quality are very poor.
22. Sound details: the sound density is small, the sound is not strong enough, the sound is slim and weak, the frequency is short, the middle frequency and high frequency, the sound is insufficient, such as some sound sources have fine pronunciation, lack of resonance.
23. Sound Play: Sound density is high, the bass is suitable, the sound is adequate, there is a certain degree of sound, the distortion is small, the dynamics are large, the frequency response is wide, for example, if the distance from a multi-microphone to the processing of the human reverb, as long as the amount of work is combined, the focus is real, the sound is sent, and there is elasticity.
24. Sound reduction: the sound density is small, the sound cannot be sent out, the middle frequency is missing, the sound is less, the sound is low, and the distortion is large. For example, in a theater with poor sound conditions, the sound is too short, the sound is not good, the actors speak loudly, and the sound is still choppy. The sound source is far from inside, and the sound quality is not full.
25. Clear Sound: The frequency is wide and even, especially when the medium and high frequencies come out. The sound is bright and the reverb effect is suitable.
26. Sound turbidity: The intermediate frequency and the Middle and Low Frequency reverb values are too large or too much energy. The direct voice proportion is small, and the main melody is not prominent. The middle and low frequencies are missing, the brightness is poor, and the harmonic distortion or intermodulation distortion is large, if the transient response is poor, it will give people a feeling of sound turbidity and unclear clarity.
27. Sound hair: there are too many high-frequency and mid-high-frequency sound, and the distortion is large. There is also a transient overload phenomenon, poor damping, and the square wave has parasitic oscillation, and there is a high-frequency Additional sound in the sense of hearing, nose.
28. Sound sand-issuing: large band distortion, additional higher harmonic waves, transient distortion, and overload distortion in electroacoustic devices and audio-frequency devices, for example, the AC capacitor leakage in the electronic tube amplifier, the static current in the transistor amplifier is too low, the speaker sound ring is scattered or touchlap, and the actor's throat is not good, it may generate a hoarse feeling.
29. Sound blow-up: the sound energy density is high, the frequency is too high, and the frequency is too high. In the recording or Sound Amplifier System, the amplitude modulation is too serious, and the top is overloaded.
30. Sound breaking: The sound energy density is too high, and there are severe harmonic and intermodulation distortion. From the maximum sound level of the sound source that the microphone can withstand to the sound station, the linear retention of the recorder to the power margin of the amplifier and speaker, any level of overload and top distortion, will produce a sense of broken, serious noise may also occur. The residual magnetic sensing on the recording tape is too high. When the optical tape is heavily over-modulated, the sound quality will be broken.
31. Noisy VOICE: in the range of 3000 ~ More than 4000Hz has serious attenuation, high-frequency reverberation is insufficient, and low-frequency energy is too large, especially around 150Hz. Large low-frequency linear Distortion and poor transient response. The reason for the tightness is that the sound source is stuffy, the electro-acoustic system drops frequently, and the position of the pickup pad is incorrect. The gap of the head is offset, and the magnetic particle blocks the head. Sometimes the sound conditions in the recording studio are poor, or the air temperature may affect the high-frequency absorption, short reverb, and low-frequency diffusion, which may also lead to sound tightness.
32. Sound hang: a low-frequency domain is exaggerated, with resonance, uneven frequency response, and long reverb. For example, if the reverb sound is improperly used, there will be a cool bathroom effect. If you use a multi-frequency tone to increase too much at 300Hz, it will also produce a cool feeling, affecting the definition.
33. Nose: nose, especially when the speaker has a cold or nose ~ There is a resonance in the Hz band. If it is increased too much in the Hz band, it will feel a significant rise in the nose sound, sound quality, seriously affecting the definition.
34. Sound Dispersion: sound is not strong, focus is virtual, main melody is not prominent, the reverb is too large, the intermediate frequency is lacking, and the frequency response is uneven. The recording studio is empty, the microphone is too far away, and the overall band is not fit, and the sound is messy and scattered.
35. Sound floating: Generally, the sound source is not aligned with the sound source, causing the sound focus to be false, or the sound source is too far away, the direct sound is not enough, the indirect sound is too much, and the middle sound is missing, the average sound level is small, the sound intensity is low, and the definition is poor. In the recording and releasing sound system, the speed is unstable, and the position of the tape is swinging, causing the level to shake and the sound will feel like a float.
36. Sound SHAKE: In the recording or replay process, a frequency offset is generated by a mechanical drive, resulting in a continuous change in the volume, and the sound is trembling. Such as periodic shaking at a low frequency, the sound shake is uneven on the auditory perception, jitter and affect uniformity.
37. Sound with vibrato: this is mainly a sound defect in architectural acoustics. For example, the sound source may sound in two parallel planes or the arc dome, which may cause a trembling echo. It sounds like a continuous overlap or even trembling sound, the definition of a serious disturbance sound.
38. Sound jump: This is not consistent. It is generally caused by sudden changes in the volume of music, conversation, or singing. For example, the volume is not balanced and the frequency of the grid is unstable, which leads to inconsistency between the front and back of the tone, if the background noise is not connected, the voice tail is cut off, the actor's mood is not consistent, and the tape is not in good contact with the head, the audio will jump and feel unnatural. It is especially similar to a single shot of a movie. Therefore, we must pay attention to the consistent sound.
39. Sound BRITTLE: The frequency is not uniform, the frequency is low, the middle and high frequency are many, the distortion is large, the sound is thin, not thick, in 7000 ~ When the 8000hz is upgraded too much, it will feel brittle.
40. Too many teeth or distortion: the tooth sound is also called the s sound, which is a reflection of the transient distortion of the upper harmonic in the Process of sound occurrence. The spectrum energy of Chinese pronunciation is nearly 10 decibels higher than that of English and Hungary in the middle and high frequencies. With the wide spectrum of consonants, the airflow in the lungs is easy to cause irregular motion of the microphone diaphragm, during the recording process, if the microphone is placed too close to the sound source without an anti-wind hood, it will easily cause excessive sound or distortion, in terms of hearing, there may be a sense of hair loss or distortion.
41. Lead sound (or weighing metal sound): A middle-and high-frequency segment is highlighted or has a resonant peak. The frequency is not uniform, the distortion is large, the damping is in effect, and the transient response is not good. For example, sound quality is often hard and accompanied by a lead sound, which is called a metal sound in the north.
42. Melting sound: sound frequency is wide, distortion is small, the signal-to-noise ratio is good, and the dynamic range is large. The sound of the Song team and the band is balanced regardless of the volume and tone, and the choice of the sound mixer includes: the characteristics, time, and proportions are suitable. The whole audio is blended together to show that the overall sense of the band is good, rather than hearing the sound is discrete.
43. Clean: Sound, instrument, language, low noise, less interference, no additional components. The entire sound is less distorted, the fidelity is high, the transient response is good, and the reverb sound is suitable. Especially, the low-frequency reverb sound is not large, the sound level of the recording studio and the test room is low, and the sound conditions are good, the information noise ratio of the recording and releasing sound system is high.
44. GROUP: refers to a group of songs, bands, or some of the sounds neatly integrated with thickness, good layers, great momentum, strong overall sense, and a suitable dynamic range. For example, the microphone layout is reasonable. Considering the coverage of the performer and the appropriate use of delimiters and reverb will help to enhance the sound group sense.
45. stereoscopy: Sound not only has layers, orientation, space, and distance. For stereo sound, it must reflect the different location of sound source in space. The sound image has a clear orientation, a good sense of width, a wide frequency response, a small distortion, a suitable reverb effect, and a large dynamic range.
46. Environmental Sense: this is a common term used in the sound pickup process to use analog techniques. It is more emphasized in movies and television, it refers to the ratio and distance of the sound to match the environment, characters, or instruments in the screen, including close-up, close-up, mid-view, vision, and panorama, there are halls, valleys, indoors, outdoors, and in the wild. The sound must have a sense of environment, depth, and distance, which is related to the ratio of the direct sound to the sound, the duration of the sound, and the volume, tone, and microphone layout, we should try our best to achieve the consistency of hearing and vision, so that the sound conforms to the specific environmental atmosphere.
47. intimacy: This is a comprehensive evaluation with high requirements. It requires a proper sound level, a high definition, a good natural level, a moderate amount of reverb sound, a wide range of Sound Fields, low distortion, and low noise levels, it makes people feel that they are listening directly to the band playing in the concert hall, theater, and recording studio with good sound conditions. They feel as friendly and natural as talking to others in person.
48. Fullness: The sound is thick and round, the sound power is high, there is a certain degree of sound, the middle and high frequency is not missing, the brightness is good, especially the low and middle frequency energy is sufficient, the sound is sent, small channel distortion, good transient response, and sufficient reverb sound. It is also called warmth.
49. Balance, because it is closely inseparable from the specific room environment, that is, the building characteristics, the natural balance of the room includes two meanings: art and technology. The other is the technical balance of sound pickup, if the Indoor Natural balance is good, and the finished recording is unbalanced, this is not reflected in the technical process. On the contrary, there is a lack of Indoor Natural balance, but the process of sound pickup is handled properly, and technical means are used to make up for the deficiencies in the natural balance, so that the work achieves a balance and harmony, this is a very important task in our sound pickup technology.
50. Noise level: this is an important indicator of High Fidelity Sound Quality. its low level of noise can improve the definition of music or language and expand the dynamic range of sound. The noises include the background noise, the background noise of the recording and playing equipment, the cracking sound of the record base, and the noise produced by the instrument performance and the actor's speech, the Environmental Noise of the recording and listening place, as well as the presence or absence of ECHO or trembling echo interference.
51. Good level: wide and uniform frequency response, especially for high-frequency band frequency broadening, low distortion, good transient response, moderate amount of reverb sound, moderate amount of reverb time, low noise level, large dynamic range, the melody line and texture of the work are clearly balanced, and the sound has a sense of space, good transparency, and strong three-dimensional feeling.
52. Sound truth: low distortion, high fidelity, and pure tone. Sound is consistent with the picture, with a sense of space, distance, sound effect combined with the environment atmosphere, actor mood, tone in line with the provisions of the scene.
53. activity: it is the opposite of dull, dry, and wood quality. Sound conditions in the recording studio and studio are good, sound fields are uniform, sound dispersion is good, and the reverb, especially the middle and high frequencies, is sufficient. with a certain degree of sound and brightness, the sound is active, it is helpful for music fullness and language clarity.
54. Sound transfer: A sound channel is connected to another sound channel and interferes with other sounds. Most of these sounds are due to improper microphone or actors due to multi-microphone or stereo recording, the sound field isolation in the recording studio is poor, and the crosstalk between sound channels or the high recording of thin-layer tapes results in a copy effect. Generally, the inter-channel crosstalk on the audio console must be greater than-70 decibels, the crosstalk between audio channels on the recording and playing machine must be greater than-50 decibels, and the isolation between different voices in the pronunciation room must be greater than 15 decibels.
55. Direct audible level: the ratio of direct audible to reverb audible. It can be used to create a sense of space based on different needs. A certain amount of direct audible and subreflective audible sound is produced, can highlight the sound. The sound is too small to dry.
56. reverb sound degree: it is relative to the direct sound, because different sound sources can choose different reverb methods (including the reverb time, ratio, and characteristics) based on their needs ), correct use can improve the sound quality and clarity, and help beautify the sound source.

 

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