Monday, December 20, 2010
【School】 sound evaluation of the term weak Daquan --- Power By weak home network 【China】.
<br> 1, voice width: frequency bandwidth, distortion, long linear dynamic range, and the more evenly distributed, medium and low frequency energy than the outstanding sound mixing ratio of the right, was in listening range on the broad, full comfort .. .<BR> 2, sound narrow (stenosis): high, two bass, lack of bandwidth is not wide, reverb is short, IF undue prominence, such as the use of multi-frequency tone compensation in excess of 800 liters of amnesty, it was a narrow sound, treble .lack of hierarchy, bass fullness poor. .Narrow width is the sound of antisense. .<BR> 3, bright sound (loud): In the evaluation of uncertainty is sometimes also called degrees or brightness. .Within the entire range bass, alto moderate, treble energy sufficient, and is rich in harmonics and the harmonics on the slow decay process, while the proportion of mixing the right sound, distortion, transient response. .Brightness is to improve the clarity, intelligibility prerequisite. .Fortunately, the brightness will give people a friendly listening, an active sense, it sounds effortless, bright sound outstanding. .<BR> 4, dark voice: this is the lack of a high-frequency and high frequency response, in particular, significantly more than in the 5000-6000 Hz recession, recording studio or listening room acoustics poor, middle and high-frequency reverberation time is short ., will be felt in hearing the sound dull without glory. .Antisense is a bright dark. .<BR> 5, thick sound: the sound thick, strong, full bass, treble, not lacking a certain degree of brightness, a strong low-frequency and low frequency energy, in particular, come out of 200-500 Hz sound, mixing four partners, LF .no shortage of reverb, distortion. .Sound recording and the peak amplitude when the volume table is not necessarily high, but larger than loudness. .If the combination of film and television in the screen request, the microphone properly handled recently, a very close range to give people the feeling of thick sound. .Thickness of some units as "strong." .<BR> 6, thin voice: sound thin and lack the intensity, resonance is poor, less reverb, less sound energy average level, the lack of low frequency and intermediate frequency, the frequency response attenuation in the 300-500 Hz over the following there will be .thin feeling. .Some units known as "single" is the opposite of thick. .<BR> 7, the sound round (round): wide band, pure sound quality, minimal distortion, a certain intensity and brightness, the bass is not muddy, midrange is not hard, barren pitch, transient response is good, mix with the direct sound .the ratio of the sound, reverberation characteristics, more appropriate time in the hearing are: full, bright, clear, high fax. .<BR> 8, flat voice: round, flat is the music department of a common evaluation terminology, refers to a narrow band, sound thin, impure quality, distortion greater or less reverberant, fullness the meaning of poor. .Such as multi-microphone, multi-track recording studio, including the phase between the sound field is very important, phase does not, sounds flat and narrow, the lack of bass, distortion, large, fullness poor. .Antisense flat is round, and some units called "flat." .<BR> 9, soft voice: There are 2 concepts, one is a poor evaluation, referring to the lack of alt, the master not prominent, the sound is good without the other evaluation efforts, such as the South some electro-acoustic workers called " .waxy "or" soft baked ", it refers to the distortion, good damping and low frequency response band broadening, relaxation sound, come out of low-frequency low-frequency, mixed sound appropriate, at the hearing was soft and comfortable. .<BR> 10, the sound hardware: the lack of bass, the high-frequency ones, and the high frequency harmonics decay is too short too fast, low-frequency sound mixed with short, there are significant intermodulation distortion, transient response is not good, the damping is poor, the electro-acoustic .system or the process of recording sound a little overload or record a program when the amplitude is too high, will have a hard feeling. .Hard, in the South some plays, musicians, also called "stem" is a soft antisense. .<BR> 11, sound is water (or water): Distortion is very small, wide frequency response and uniform, the sound come out, have a certain loudness and brightness, sound mixing and the ratio of direct sound right, especially in the high-frequency mixed .sound enough, the hearing was refused, and round, with water. .<BR> 12, dry voice: mainly recording studio, listening room with poor acoustics, diffusion is not good, reverberation time is short, especially the lack of high frequency noise caused by mixing sounds very dry and laborious. .<BR> Order to improve the sound quality, often in the recording studio, some irregular arc additional diffuser to increase the reflected sound, or the use of artificial reverb. .<BR> 13, the sound through (transparency): Distortion is very small, transient response, wide frequency response and uniform, high frequency and high frequency come out, mixed the sound right, especially in the high-frequency reverberation enough, the bass do not .paste, a certain intensity, the sound clear and bright, good sense of hierarchy, through sound. .<BR> 14, paste the sound: the ambiguous sound into a paste, means too much bass, low frequency reverberation time is too long, the lack of high frequency, there intermodulation distortion, or feel the sound as if a layer mask veil, .the hearing was brightness, clarity is poor, and poorly. .<BR> 15, real voice: strong, medium and large low-frequency sound energy average level, no shortage of high-frequency and high frequency, the proportion of strong direct sound, mixed with appropriate sound, the sound thick, bright, distortion, high sound. .Such as movie newsreels in the explanation, the closer the microphone from the sound source, there will be outstanding vocalist, sound, solid feel. .<BR> 16, sound empty: too much reverberation, the small proportion of direct sound, the microphone is not aimed at the direction of the sound source, the microphone too far from the sound source, or more occasions in the reverberation-free directional microphone receiving the sound source, .will feel empty sound, clarity is poor, lead singer is not prominent, and even feel the sound source direction is not clear. .<BR> 17, swinging sounds: this term has two kinds of concepts, one good evaluation, alt no shortage of bass, rich and pleasant, low-frequency response band broadening, and have enough energy, sounds relaxed and flexible, mixed .slightly larger impact, especially low-frequency reverb, distortion, if multi-frequency tone compensation rose 4-6 dB in the 80-150 amnesty was listening to music to feel the bass sound full swing. .Second, poor evaluation, if the bass too much exaggeration, that sounds out of balance, or the lack of low-frequency sound source, but by the speaker (me) the low frequency resonant peak caused by resonance, or damping, transient response is not good, will have a .Add the "bass" in the hearing felt dull, the lack of brightness levels, which is a distortion, non-high-fidelity sound quality. .<BR> 18, the sound of wood: more bass or the bass, poor sound diffusion, reverberation is short, the sound does not become active, inflexible, lack of high frequency and high frequency, the sound of wood finishes is antisense. .<BR> 19, sound soft (or loose): low-frequency and low frequency energy sufficient, sound thick, loose, not tight, loudness appropriate, slightly reverberant, distortion, transient response, high frequency, high amount of ., in the main band, the frequency response more uniform, and have a certain brightness, sound effortless, full tone, soft. .<BR> 20, sharp voice: uneven frequency response, lack of bass, treble, especially the treble too much weight, the larger distortion in the hearing was harsh. .<BR> 21, the sound rough: the larger low-frequency sound energy density, relatively few high-frequency, sound rough, larger effort, clear sense of the degree and reverb are poor. .<BR> 22, sounds fine: sound energy density, loudness is not enough, sounds thin and weak, lack of low-frequency, high frequency and high frequency of partial, less reverberant, the sound source itself, as some sounds fine, the lack of resonance. .Antisense is a thick voice. .<BR> 23, sound bombs: the South is sometimes called the "evil" sound energy density greater right bass, midrange enough, there is a certain loudness, distortion, dynamic large, wide frequency response, such as multi-microphone close .treatment plus with the amount of artificial reverberation felt as long as the real focus of the sound sent to come, and patience. .<BR> 24, the sound reduction: sound energy density is small, the sound is not sent out, lack of frequency, mixing the sound of small, low loudness, distortion large. .Poor, as some theater sound, reverb is short, diffusion is not good, the actors speak loudly, the sound or get out, the total reduction that far inside source, clarity is poor, sound is not full. .<BR> 25, clear voice: wide frequency response and uniform, especially in the high-frequency come out, bright tone, reverb suitable, in particular the use of less than 50ms in recent times to increase the loudness of sound reflections and improve clarity, distortion, .transient response. .Long reverberation, the sound level low noise high, recording or listening acoustic characteristics of poor areas, will affect the clarity. .<BR> 26, muddy sound: low-frequency and low frequency energy is too large or too much reverberation, the proportion of direct sound small, not prominent theme, lack of high frequency, brightness difference, harmonic distortion or intermodulation distortion of a large, transient response .well, will give a muddy sound, clarity is poor, and poorly feeling. .<BR> Number 27-30,31-33,34-35,36-38,39-41 is basically similar to several groups, meaning similar, but there are differences in the degree of evaluation terminology. .<BR> 27, the sound scared: too much high-frequency and high frequency, and distortion of the larger, and the phenomenon of transient overload, damping is poor, a parasitic square wave shocks, felt in the high-frequency hearing additional sound, the sound rough and not clean .. .<BR> 28, the sound made of sand: a larger distortion of the pass band, with additional high-order harmonic, and accompanied by transient distortion in electro-acoustic devices, audio devices, overload distortion, such as cross-tube amplifier .with capacitor leakage, transistor amplifier quiescent current is too low, some scattered or touch the speaker voice coil ring, voice actor is not good, may have the feeling hoarse. .<BR> 29, the sound made deep-fried: sound energy density is too large, too much high frequency and high frequency, or burst in the recorded amplitude distortion sound reinforcement system had serious, and cut the top of the phenomenon of overload. .<BR> 30 breaking the sound made: sound energy density is too large, there are serious harmonic and intermodulation distortion. .Sound source from the sensor can withstand the maximum sound level to the mixer, record retention is also linear to the amplifier, speakers, power margin, no one has cut the top of overload distortion, will have the feeling of breaking, will be accompanied by serious ."scarred" miscellaneous sound on the tape recording level is too high remanence magnetic induction, optical recording serious vocal cords had broken the sound quality will produce amplitude modulation. .Broken, some units called "split." .<BR> 31 muffled: lack of treble and midrange and treble. .More severe in the 3000-4000 Hz and attenuation, lack of high frequency reverberation, low frequency energy too much, especially around 150 Hz. .Large low-frequency linear distortion, transient response is not good. .Produce boring reasons, the source itself, nausea, high-frequency electro-acoustic system, fall, pick cloth bit inappropriate, head aperture offset, magnetic plug heads, or tape with the head fit well. .Sometimes poor audio recording studio, or by air humidity, so that strong high-frequency absorption, reverberation short, medium and high frequency diffusion is poor, can also cause the sound stuffy feeling. .<BR> 32, coax the sound: low-IF a certain exaggeration, there is resonance, uneven frequency response, reverberation is too long, such as improper use of reverb, there will be a Hong Hong's "bathroom effect", with multi-frequency tones in .200-3000 amnesty will also have to coax rise too much sense of clarity. .<BR> 33. .Sound urn: nasal heavy, as if the sounds were a cold stuffy nose (urn nose), 100 ~ 250 Hz at a resonant frequency range, such as from A rise of 150 amnesty too will feel a significant increase in nasal voice made urns, seriously affecting the clarity. .<BR> 34. .Scattered sound: the sound is not strong, the focus is true, the theme is not obvious, reverberation is too large, the lack of intermediate frequency, frequency response is uneven. .Studio space, microphone too far away, with poor integration of the entire band, the sound was messy dispersed. .<BR> 35. .Sound virtual (or floating): directional microphones are generally not aimed at the sound source caused the focus is not real, or too far from the sound source, the direct sound is not enough, indirect sound too much, the lack of midrange, sound energy than the average sound level .small, low loudness, clarity poor. .Burst in the recording system, the speed of instability caused by the tape position level sway swing, and there were floating in the sense of hearing. .<BR> 36. .Voice shaking, Akira: the sound recording or playback process, the frequency offset generated by mechanical transmission, resulting in continuous changes in the volume of the rules, was hearing voices trembling. .Cycle, such as low frequency shaking, shaking in the hearing was the sound uneven, shaking or shaking all of clarity. .<BR> 37. .A vibrato sound (flutter echo): This is mainly in architectural acoustics sound defects. .For example, in the two parallel surfaces in the source sound, or a curved dome, are likely to cause flutter echo, it sounds like there was a continuous overlapping sound, even a trembling voice phenomenon, seriously interfere with the sound of the clarity. .<BR> 38. .Sound dance: that is, not coherent, general music, dialogue or singing on the volume are mutations, such as volume balance, power frequency of instability, leaving the pitch before and after the non-uniform, non-convergence of background noise, sound tail cut off, the actors emotions inconsistent ., tape, poor contact with the head, etc., will jump at the hearing was not natural. .Especially as the film is a composition of a shot, so pay attention to sound more coherent. .<BR> 39. .Sound crisp: uneven frequency response, lack of low frequency, high frequency and high-frequency ones, the larger distortion, sounds thin, not thick, rose in 7000 ~ 8000 amnesty too, there is the feeling of crisp. .<BR> 40. .Too many dental or dental Distortion: dental habit is also known as S tone, is the voice of the oscillation process in the high-order harmonic distortion of a reflection of the transient. .Chinese pronunciation of the spectral energy in high frequency than in English, Hungarian, to nearly 10 dB, with a wide spectrum of consonants, the airflow out of the lungs so that the microphone diaphragm and easy to produce irregular movement, therefore, in the recording process ., if you put the microphone from the sound source was too close, and no additional windscreen, it is likely to cause dental ills of too much or distortion, there are glitches in the sense of hearing or have a "hush hush" distortion. .<BR> 41. .The leads sound (or metallic sound): the resonant frequency or a certain prominent peak, uneven frequency response, distortion, large, less damping, transient response is not good. .For example, poor quality of the moving coil microphone, or tweeter, sound quality was often hard, and accompanied by the sound of a lead sheet, the North called the metallic sound. .<BR> The following is a comprehensive subjective evaluation: <BR> 42. .Fusion: wide frequency response, distortion, good signal to noise ratio, dynamic range and other conditions, the chorus or the band in terms of individual voice volume, tone uniformity, and reverb options, including: characteristics, time, the proportion of all .more appropriate, the sound blend together to show the band's overall sense of good and not feel the sound in the hearing is discrete. .<BR> 43. .Clean: between voice, musical instruments, between languages, low noise, less interference, no additional components, the sound distortion, fax and high transient response is good, mix sound appropriate, but particularly large low-frequency reverberation ., recording studio, listening room with low noise level, sound is better, a good signal to noise ratio recorded burst system. .<BR> 44. Group Sense: refers to the songs, the band or some voices and sounds neat integration with the thickness of a good level of momentum, the overall sense of strong, and have suitable dynamic range. .For example, the arrangement of microphones and reasonable, taking into account the coverage of the performers, and the appropriate use of delay and reverb devices, help to enhance the sound of the group feeling. .<BR> 45. Three-dimensional: not only the sound level, which has an orientation, but also a sense of space, distance, on the stereo, the sound source to reflect the same position in space do not, sound like a defensive clear, the width of a sense of good, .recorded burst path to wide frequency response, distortion, mixing fit, a larger dynamic range. .<BR> 46. Environmental sense: This is the pickup process simulated sexual practices in the use of a common noun. .In film and television is more emphasized that the sound environment to fit the screen, the characters in the picture or the proportion of instruments, distance, there are close-up, close shot, medium shot, vision, panoramic; the hall, the valley, indoor, outdoor, etc. ., the sound environment should be a sense of depth perception, sense of distance, which direct sound and sound mixing ratio of the length of reverberation time and volume, tone, layout on the microphone to try to achieve consistency of auditory and visual, so that .meet specific sound atmosphere. .<BR> 47. Friendliness: This is a comprehensive evaluation of high demand, he asked for loudness, high definition, natural is good, mix sound adequate, wide range, distortion, noise level is low, people feel that .In the audio conditions are good concert hall, theater, recording studio, listening to the band's performance directly, face to face, as my colleagues say, was kind of natural. .<BR> 48. Fullness: the sound thick, mellow, acoustic power is large, there is a certain loudness, no shortage of high frequency, the brightness is better, especially the low-frequency and low-frequency energy sufficient to send voice reached, channel distortion, .transient response is good, mix sound enough. .Sometimes referred to as "warm and degree." .<BR> 49. Balance: Generally speaking there are two meanings balance: one indoor natural balance, that song, the band balance between the voice and the balance between the main partners, because of its halls and rooms, and a specific environment, namely construction of .close indivisible, so the natural balance of indoor art and technology to contain the meaning of two terms. .The other is technical pickup balance, natural balance if the room is good, and recording finished creating an unbalanced, this is the technology does not reflect the good part. .On the contrary, there is a lack of indoor natural balance, but the pickup process handled properly, with the technical means to make up for the deficiencies of the natural balance that works to achieve balance, harmony, which we pick a very important process technology work. .<BR> 50. Noise level: This is an important indicator of high fidelity sound quality one. .Low noise levels, can improve the clarity of the sound or language to expand the dynamic range of sound, noise, including: background noise, sound recording equipment, background noise, crackling film base record, playing musical instruments, and his speech itself generated actors .noise, sound recording, listening workplace environment or vibration noise and echo without echo interference. .<BR> 51. Levels of good: wide frequency response and uniform, in particular, broadening of the high frequency band frequency response, distortion, transient response is good, mix sound adequate, appropriate reverberation time, low noise, dynamic range, the melody line of work .and texture, clear and balanced, sound and sense of space, transparency, and three-dimensional sense. .<BR> 52. Sound distortion: distortion, simulation and high, pure tone. .Consistent with sound and picture, there is a sense of space, distance, atmosphere with sound effects, actors mood, tone, compliance scenarios. .<BR> 53. Liveness: a sound dull, dry, wood antisense. .Recording studio, performance hall sound good condition. .Yang uniform sound, the proliferation of good, moderate high-frequency reverberation in particular enough, and have a certain loudness and brightness, they are sound active, it is full of music and language helps to clear. .<BR> 54, channeling sound: that the string into one channel to another channel interference of other sounds, which are mostly multi-channel or multi-microphone stereo recording, the microphone or the actor cloth bit inappropriate, studio sound field .isolation is poor, the crosstalk between channels or thin base tape recorded higher levels caused by magnetic effects caused by copying too. .General mixing console was way greater than -70 dB crosstalk between the recorded sound machine also crosstalk between channels is greater than -50 dB, the sound recording studio isolation between the Department of greater than 14 dB. .<BR> 55, direct sound level: the direct sound and sound mixing ratio can be used according to the different needs of its sense of space created, some recent launches direct sound plus the loudness of the sound produced, can highlight a strong voice. .Sound mixing is too small, will cause the sound dry. .<BR> 56, reverb sound level: in terms of relative to the loudness of the direct sound, because the different sound sources according to their needs, choose a different reverb means (including reverberation time, the proportion of properties), the correct use can increase .the loudness of the sound clarity together to help beautify the sound source. .<BR> <BR> <BR>.
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