Weak current College】 【microphone amplifier using advanced techniques.

1. recording environments:
1. the natural reverberation of a large belt of the Studio: this recording picked up tempo area probably in more than 100 square meters and has a good acoustic reflection. In this Studio, sound recording, is according to the need to include some reflection sound. Then use the words of the compressor unit, will minimize the compression ratio, that is, if the compressor is the compression ratio is too large, when the volume of the sound reaches the threshold, the compressor will exceed the level substantially reduced, then the subsequent early reflections will also be reduced, then the resulting sound will not be able to correct the original sense of space, in this case, it is best to put the compressor and Expander. You can prevent some of the sound level is too small. In addition, because the lower compression ratio, so that excessive volume level may prevent sound distortion. In this way, we're going to the appropriate lower thresholds, so that the compressor from lower-level began to action, and to maintain the compression process rouhuan, however, keep in mind is that not much of a reduction in compressor start time, because the hardware compressor or some fake hardware software compression, reducing the startup time will result in an increase in noise or sound distortion.
2. small absorption-Studio: this area is not usually Studio are great, but very good sound absorption for, in this Studio, regardless of the sound recording, reflecting all the voice sense of space depends on the latter part of the process to get, in other words, we can rest assured that the bold use of dialect on top of the compressor, in this case, the only thing to note is to try not to sound with too many signs of compression for processing.
Compressor treatment there will be mark? how to avoid it? answer is this: first, the compressor from principle, do not normally give sound processing traces, however, because the auditory nerve, causing the human ear in many cases can be resolved by compressor processing traces. We all know that people on the sensitivity of high frequency sound than on low-frequency sound sensitivity. Then, when the compressor working, although the sound of high and low frequency to the same level of compression or reducing, however, in our sounds will feel the compression for high-frequency attenuation ratio on low-frequency attenuation, then, can cause us to feel that the sound is compressed for processing after getting some "boring" or "flat".
This is the case, another scenario is when a sound level compressor we set the value of the valve, compressor will start time arrived accurate start action. However, from the sound-level reaches a threshold to the compressor identifies the level reached the threshold is one of the moment, although this time is very short, but it is certainly not negligible, especially digital compression, the problem becomes even more evident. So in our ears hear is the sound in the "out" and later by the "fight" back, only increases the sound of the "boring" feeling.
So how do we solve this problem?, of course, with better placed or words are the most direct solution, such as the "red line" and "blue bar" and the like, but if we don't have enough money to buy good words on what we had to come from existing equipment to solve the problem. Here I put me in the use of some experience, he said that, first of all, avoid using excessive compression ratio, so that the sound reaches a threshold, it will not be a large degree of compression, resulting in the sound "boring", if you must use the compression ratio, then the best appropriate lower thresholds, so that the compressor from lower-level start action, and then try to use soft inflection point. Make sound compression process as some of the "gentle", said a long time, it is critical that we want to enable compression for action gentle method for many, for example, reducing the threshold, the extension of the boot time, lowering the compression ratio, use soft inflection point, and so on, using various means and through constant practice, to find the most suitable for our own equipment. I say these methods in the later shrinkage when mixing for compressor for processing time also applies, in particular, I have to tell the dwarf mixed when speaking.
Sound type, mainly refers to the human voice, recording voice the need to adjust the maximum number of recording drum group, than also effortlessly. Important: to enable you to hear voice close to you eventually want to human senses.
Different types of voice probably divided into 3 types:
First, sound dynamic range very large singer:
Such singers, generally have iron-like melody, while their usual and you may not display out his dynamic range, but really singing, won't be the same. First, their voice, we need to know what we ultimately want to sound. This is what I call the "Essentials". If you want sound is retained his original large dynamic, so when you're in the early recordings on microphone amplifier adjustment may be very difficult. However, would like to remind everyone that, don't think that the wide dynamic range will be good. Too big a dynamic lead when it comes to low sound volume, it appears dimmed, especially and mixed with the music. So this sounds mostly to his dynamic range without leaving any traces of reducing, for example: the singer's voice minimum time might be-60db, Max sound is 0db, that is, his dynamic range is 60db (this is only one example, the dynamic range of the human voice many of which are beyond the scope of). It is possible in-35db below, we've heard is not clear, then, we need his voice of the dynamic range is reduced to 35db, so that our product to let everybody hear clearly. Here, we mainly use press to adjust the sound, how to adjust, earlier courses have talked, I will not repeat.
Second, the voice of the singer:
For the singer, we instead want to increase the dynamic range of his voice to make his voice sounds more fullness. So we need to increase the amount of amplification, the peak of his voiceAs close as possible to the 0db, then, if such unnecessary noise, we can not go to him, and then in the late-time to go for noise reduction. As for the compressor of adjustment, we want to to sound's richness as a primary consideration, in the fullness of poor, we'll use the Extender, and so on means to improve their weak volume so that the Ministry of his voice to sound like "big" as possible.