【 Weak current College 】 vocal effect of fine processing-Power By 【 China power house network 】

On the human voice effects of treatment, most people are using the method repeatedly heuristic adjustment to find the best deal to bolster effect. This way of tuning is clear: (1) looking for an ideal tuning effect, by repeatedly guessing, so you will need to teach a long time. (2) better tuning effect is often encountered by chance, this is tuning of conclusion no help, and then later also difficult to reproduce. (3) different devices of various fixed and adjustable parameters are different, so use the experience of a device, usually cannot be used by another device. Development to the current effect processing equipment, used to vary the sources of technical means of timbre and not too much, one of the more commonly-used only the frequency balance, delayed feedback, limiting distortion, etc. 3 basic methods, but these effects processing equipment of different parameter combinations of timbre is quite different. Effect processor parameter settings can have many items, in particular delayed feedback, this simulation of reverb effect parameter of set theory up to dozens more. Of course these professional strong arguments, most people find it difficult to understand, I do not know how to understand. Therefore, most of the effect of processing equipment are only set up one or two adjustable parameters, and it controllable range is relatively narrow. This simple effect processing devices allow people to try the above adjustment, without too much problem. But for effects processing require finer tuning occasions, such as in multitrack recording system, you must use more professional effects treatment equipment, to make finer effects processing. Frequency balance it is clear that the frequency the more balanced the segmentation, the effect of the fine, the higher the degree. In addition to the graphic equalizer, General tuning of balancing unit usually only three or four frequency bands, which obviously could not meet the requirements of precision processing audio sources. In order to be able to sufficiently flexible to voice any balance processing, we recommend the use of gain and frequency and width can be adjusted by the fourth paragraph of the frequency balance. Most frequency balanced tunables can only gain one, however this does not mean that the other two parameter does not exist, but these two parameters is not adjustable fixed parameters. Of course these two parameter is set to variable is also not difficult, but these will increase the cost of the device, and adjustments are complicated. So gain and frequency and width are adjustable parameters balanced circuit, usually only in the high-end equipment can be seen. In fact, gain and frequency and the width is adjustable frequency balance, it was almost impossible to guess the mess on the use of Hu's method of finding an ideal sound. Here we must study the audio signal of physics characteristics, technical parameters, as well as his sense of the human ear on the relationship. People sound source spectrum distribution are special, its pronunciation manner, he has three parts: one is by the vibration of vocal music, this is the most flexible part of pronunciation, different pitch, the different articulations of the spectrum is also very large; the second is the more stable the nasal cavity, thus the shape of its resonance produces harmonics spectrum distributions not changed significantly; the third is the oral airflow in tooth friction between sound, the sound of teeth and the vibration of vocal music basic business. Frequency balance you can approximate these three parts spectra. Adjust the frequency of terms used in the nasal 500Hz, following a balanced point frequency generally 80 ~ 150Hz, balanced bandwidth is 4 octaves. For example, you can set the frequency balance 100Hz's midpoint, equalization curve from 100 ~ 400Hz gentle transition, balanced gain adjustment range to + 10Db ~-6dB. This should remind everyone that this adjustment za shall use low frequency sounds very weak little box to avoid unintentional excessive nasality. Vocal music of spectrum with the tone changes are also very large, so the regulate musical balance curve should be very gentle, balanced frequency can be in a point 1000 ~ 3400Hz, balanced bandwidth to six octaves. This band control sining bright, gently upward adjustment to enhance the brightness of the human voice. However if you need to reduce the human voice of luminance, the situation is more complicated. General musical brain excessively bright vocal and most are in the vicinity of spectrum 2500Hz, here we can balance the bandwidth to 1/2 octaves, balanced gain around for-4dB equalization, find a nearby in 2500Hz works best in frequency. Human teeth tone spectrum distribution in 4kHz above. Since this band also contains some of the musical spectrum, it is recommended that the regulation of tooth tone should be 6 ~ band 16KHz, balanced bandwidth to three octaves, balanced frequency generally in point 10 ~ 12KHz, balanced gain maximum adjustable up to + 10Db; if you need to reduce human teeth tone loudness, you should use a balanced bandwidth to 1/2 octaves, equalization points at a balanced deal, 6800Hz its balanced gain minimum may fall to-10Db. You can see from the above analysis, on the human voice frequency balance processing, to highlight a pitch for the band, are encouraged to use curve gentle band equalizer. This is to make the voice of the nasal, musical, the sound of teeth three parts of the spectrum distribution coherent, so that it sounds natural and smooth. In theory, should enable the human voice in any code, the loudness that remain constant. In order to not disrupt the natural sense of life on the basis of the specific effects of the treatment you can use 1/5 octaves of the balanced process, specifically the following situations: (1) to bolster the narrow, lack of depth, you can use the 800Hz 1/5 octaves of the decay process, attenuation of maximum value to-3dB. (2) volume tongue tooth tone pitch scream, "sh" sound sense of lack of clarity, you can use the 2500Hz/5 octaves of the decay process, attenuation of maximum value to-6Db. The balance of the sound source, it is best to use to display the equilibrium curves of the equalizer. General digital mixing console Equalizer balanced gain adjustment knob used to identify the "G", balanced frequency spin button with "F" to identify that a balanced bandwidth spin button with "F" or "Q" to identify. Delayed feedback delay and feedback effects processing is among the most widely used, but also the mostFor complex way. Of these, reverb, chorus, ECHO, effects, chrome, its basic processing methods are delayed feedback. 1, reverb reverb effect is used to increase the sources of fusion. Natural sources of delay sound very intensive, complex array, so the simulation of the reverb effect programs are complex and changeable. Common parameters have the following: reverberation time: can a realistic simulation of natural reverberation digital reverberator has a complex set of procedures, although there are many technical parameters adjustable, however on the adjustment of these technical parameters will not be higher than the original result more natural, particularly the reverberation time. High-frequency rolloff: this parameter is used to simulate natural reverberation, which air on high frequency absorption effect, to produce a more natural reverberation effect. General high frequency mixed descending adjustable 0.1 ~ 1.0. This value is high, a reverb effect is also close to the natural reverberation; this value is low, a limpid reverb effect. Diffusion: this parameter can be adjusted mixed sound matrix density of growth, its adjustable range is from 0 to 10, its value is high, more generous, reverb effect; its value warmth is low, the reverb effect is a more spacious, quiet part. Pre delay: natural sound of the establishment of a mixed array will be delayed for a period of time, pre delay is the simulation time effects and settings. Acoustic wave density: this parameter to adjust the density of sound wave, its value is high, reverb effect more warmth, but there are obvious acoustic colouring; its value is low, a deep reverb effect, cutting sound less dyeing also. Frequency modulation: this is a technical parameters, because electronic reverb sound matrix density than natural reverberation sparse, in order to enable reverb sound smoother, coherent, mixing sound array conducting modulation delay time. This technology can effectively eliminate delay sound arrays fragmentation, you can increase the mixed sound sense of softness. Depth: refers to the healing frequency circuit of its cure depth. The reverb type: different room's natural mixed sound differences are large array, but this difference is not a one or two parameters can be shown. In digital reverberator, different natural reverberation requires a different program. It may have small Hall in general options (S-Hall), Hall (L-Hall), room (Room), stochastic (Random), reverse reverb (Reverse), steel (Plate), spring (Sprirg), etc. A small Hall, Hall Room reverb reverb effect is natural; plate, spring reverb you can simulate early mechanical effect reverb. Room size: this is in line with the natural reverberation effects settings, it is easy to understand. Room on the connection: the connection is the one-room reverb intensity, he and the room wall absorption characteristics, this parameter is used to control this feature. Early reflections and the mixed sound balance: reverberation of the early reflections and the processing effect characteristics closely, and mixed sound wave experiments are not so diverse, so digital reverb for the generation of these two parts are separated, this parameter is used to adjust the early reflections and the mixed sound wave balance between loudness. Early reflections and the mixed sound delay time: the early reflections and the mixed sound RUF delay time control. This time, the reverb effect is clear of the preceding paragraph; this time, early reflections and the mixed sound will overlap with the reverb effect a turbidity of the preceding paragraph. In addition to the above adjustable parameters, the reverb effect and some other supplementary parameters, such as low pass filter, high pass filter, direct access to the mixed sound loudness/balance control, etc. 2, delay delay is the delay in the audio source for a period of time, then you would like to play the effect processing. According to their different delay times, produces the chorus, chrome, ECHO, etc. When a delay time in 3 ~ 35ms between human ear cannot feel latency sound exists, and he and the original audio source overlays, because of their phase interference from the comb filter "effect, this is the chrome effect. If the delay in the above 50ms delay sound is legible, in which case the effect is the answer. Echo processing generally is used to produce simple reverb effect. Delay, chorus, chrome, ECHO, effects of adjustable parameters are the same, there are several specific: * delay time (Dly), namely the main delay circuit of delay time adjustment. * Feedback gain (FB Gain), i.e. delay feedback gain control. * Feedback frequency ratio (Hi Ratio), the feedback loop of high-frequency attenuation control. * Modulation frequency (Freq), the master delayed FM cycle. * Modulation depth (Depth), refers to the depth of the modulation frequency modulation circuit. * High frequency gain (HF), means the high-frequency balance control. * Pre delay (IniDly), the master delay circuit pre delay time adjustment. * Balanced frequency (EQF), where the frequency balance for the tone adjustments, such as balanced frequency selection in points. As a result of delay effects are more complex, if not the effects handling experts, it is recommended that you use the device in a preset parameters, because these preset parameters give the treatment effect is generally better. Acoustic excitation on sound source signal on the degree of limiting processing, audio will produce a similar "saturated" bolster effect so that its pronunciation without raising the actual loudness of loudness increase on the basis of the results. Some digital effects on with nonlinear saturation effect, he is the amplitude of the signal processing, analog large battery signal transistors on the nonlinear caused by saturated, and thus produce "hard" experiments. As a result of limiting distortion arising mainly produce additional higher harmonic components, so the new design of the actuator, in order to make its processing results are soft, by sources of home purchase higher carrier ingredients to simulate limiting distortion, create less "hoarse" acoustic excitation effect. In addition, by one of the high-order harmonics for strengthening the high pass filter on the original signal is processed, and then superimposed on the delay of the original signal, you can create a tone head clear sound effects. Clearly, this approach can produce less noisy incentive. Stimulation treatment is similar to audio equipment overload distortion, so sound source forVolume incentives, will produce a sense of the noise in the DMCA. Due to the fidelity of early sound equipment is not high, people have become accustomed to that kind of slightly noisy sound, and for the musical brain clean fidelity audio, but not used, feel its pronunciation is too weak. In the sound source, in addition to a small number of specially trained people, most of the speakers are lack of stiffness, thus encouraging treatment here is essential. On the human voice of incentive to address the following situations: (1) the encouragement of vocal music, its spectrum distribution to midpoint 2500Hz to. This incentive effect more natural and comfortable, to increase the sense of the role of the sound source highlighting too noticeable. (2) the encouragement of nasal voice, its spectral distribution to midpoint 500Hz to. Such incentives can effectively increase the stiffness of the human voice. (3) on the human voice 800Hz near incentive, you can increase the sources of noise are, of course, this treatment method of use should be very careful, it is only used for the singing of rock 'n' roll. (4) on the human voice 3500-6800Hz range spectrum, not encouraging, because it is easy to make audio sources produce unpleasant noise. (5) on the voice of teeth tone should generally be avoided using incentive because this band distortion is very easy to be aware of. Of course if you are using the incentive effect of soft digital Exciter, you can also do on teeth tone, slight incentive to increase teeth tone of the analysis. Its handling of spectrum should 7200Hz above. Sining stimulation treatment is generally conservative. In the actual tuning, the incentive effect of pitch may be as long time listening and gradually weakening, and adjust the incentive effect, the time should not exceed 10 minutes. On the sound source of stimulation treatment, it is best to use digital effects processor. It typically has the following to adjust the parameters: 1. the input gain (Gmn), is used to adjust the input level, note here not to make the equipment generates overload. 2. the tuning frequency (Tuning), according to the band, select a suitable frequency. 3. driver-level (Drive), is used to adjust the depth of inspiration. Driver-level is large, the effects of a noisy; driver-level, the effect is more hours. 4. mixing ratios (Mix), that is, the raw signal and the signal effect of loudness ratio. Effect of overall planning on sound source of fine processing, you need to use 1 full-digital audio mixing console, at least, 3 desk digital effects and a digital Exciter, its connection as shown in the drawings. First of all in the sound mixer, use Channel Equalization control unit on the human voice to the tone adjustments, to enable them to improve your experiments, here are a few common examples. (1) the band can be near 8OOHz lead to some sick sense, thus is can be in this band up to 15dB of attenuation, the band width is 1/5 octaves, used to improve the overall impression of the human voice pronunciation; (2) 68O0Hz nearby band enables voice generated din't, unpleasant feelings in this band to maximum 10dB attenuator, band width of the l/5 octaves to weaken teeth tone sense of scream; (3) for pronunciation too light, there is the feeling of exploding stick the ears may be in 3400Hz Department up to 8dB of attenuation, the band width is 1/3 octaves; (4) for the nasal overweight, may be appropriate in the following band 500Hz attenuate attenuation bandwidth of 3 octaves; (5) teeth tone UHF segment due to the influence of the human ear sensitivity needed to enhance 6dB 12KHz Department (band width to 2 octaves), the loudness of musical with the human voice. More balanced handling more suitable for on-site PA, if it is a multitrack sound recording or broadcast forwarding, you should gain adjustment by half. After a fine balance, then adjust the actuator. The actuator driver level and mixing level to maximum status, frequency tuning in 2500Hz, if its pronunciation is out loud, or sound perfect, can lower the driver level, it should be noted that this change is the hardness of the sound source. If the driver level increase in higher positions, but only the mixing level reduction, the noise of audio with high hardness remains the same, but it will be processed without the incentive of original sound slightly obscure. This phenomenon in depth the very strong motivation more obvious when, in which former pronunciation given people the sense of hearing is the original sound, the latter may produce two layers of sound, it has increased the vocals layered effect. General 1 exciter can only handle one band, and many single-function actuator connection requires not only series in parallel. If you need to sources of more than one band plus incentive, suggested here, as shown in the drawings of the device is connected, the reverberation device should use multiple processing with incentive effects (such as YAMAHASPX990), you can use the actuator handle 500Hz, 800Hz and 7200Hz band, the use of reverb on the incentive function processing 2500Hz band. Once again remind everyone that the motivation of adjustment time short enough to prevent ear fatigue, cannot accurately identify the degree of motivation is appropriate. The last is to adjust the reverb effect. Here the reverb effect that includes two aspects, one is the basic retouching, another is strongly pigmented. Reverberation processing infrastructure improvements, mainly in order to increase the sources of financing and sexual, but can't let people listen to a room and sound. Here's the strong reverberation processing, dyeing effect was mainly used to generate sound sources, the likes of rendering of the way they handle the following three conditions: (1) generate a sense of space. Use the Hall or room reverb effect. Analog sound obvious natural reverberation effect reverb processing simple and efficient way, to this effect channel 3500Hz nearby band slightly elevated, can produce penetration are good high-luminance noise. Of course, also has a disadvantage, namely the treatment of turbid, sometimes with a "boring tank" sound. (2) to generate the response. Long delay time delay feedback process, you can simulate the effect of ECHO Valley; processing of delay time in General and singing songs of rhythm music. To make the effect more distant sense, can be 1600Hz following and moderate 3800Hz above band attenuation. Simulation of the Valley echo effects, many digital effects processors have a ready-made program available. (3) the thawing and generated sound background. The sound of the likes of reverb effect on the sound source is very effective for beautification, almost all of the human voice singing to use reverb. Without changing their pronunciation, or cause the stuffy tank "sound, we think the reverb effect stronger and better, but often is a reverb effect is still very weak, its pronunciation has become universal, and apparent" stuffy tank "sound. In order to not cause its pronunciation became muddy, or causing the stuffy tank "sound, build integration and a sound background. The following recommended the following approach to the effect that delay a reverb-line approach. This kind of delay time is usually 200-600ms, feedback gain 40%-60%, use the Hall reverb effect reverb, the reverberation time is 2-8s. In-line processing of reverb effect requires a smooth and consistent. If the processed sound tone head stood out, you can make the following adjustments, the first is to shorten the delay time, the second is to increase the reverberation of loudness, third is to increase the reverberation time. Reverberation processing of strong colouring effect, generally should be based on the premise of finishing, dyeing processing such strong can be weak.