If you listen to only one person at the scene, it must be a recorder. In fact, the recording engineer is more experienced and knows what to listen to. His job is "listening". He knows what is needed for post production.
All work to the recorder
Just as a person in a restaurant can cook, serve and wash dishes at the same time, a sound recorder can record, mix and dub sounds for budget reasons. However, the skills required for each job are different. For example, to complete this work, we need a professional with a studio, at least a sound room.
Use an unprofessional microphone
If so, why don't you just use the camera of your mobile phone to shoot and record movies? Just if every microphone can be used, why do some microphones cost tens of thousands of yuan while others cost only one hundred and eighty yuan? It's not surprising that there are different types of microphones in a studio.
To record high quality live recordings, you must choose the right type of microphone. The strong pointing microphone is suitable for the exterior, the pointing microphone is suitable for the interior, and the non pointing microphone can be used for the interior with a small range. The stronger the directivity of the microphone, the stronger its ability to selectively receive sound from the front, and the higher the signal-to-noise ratio.
nderestimating the impact of location
When you check the location, it's a professional practice to bring the tuner with you, because he knows how to record the sound effect of *. If there is no window or furniture in a room, it is easy to produce reverberation, so it is difficult to record and edit the sound. Remember: it's hard to eliminate reverberations in sound recording, but it's easy to add them.
Input music or background noise at the same time
If the shot passes, but the noise is mixed in, how ridiculous! Once the background sound is entered in the dialogue, it can't be eliminated. But if there is only dialogue, you can easily add background music and necessary noise. The less noise in your dialogue, the better for post production.
We don't need independent vocal cords
If you edit the dialogue, leave a time gap between the two dialogues, or combine the dialogues in two different scenes, it is likely to cause slight differences in the background sound. Once captured by the audience, it will distract them from the plot.
To avoid this, record an environmental track, that is, before or after shooting, record the environmental sound in a quiet minute, so that there is a neutral environmental sound, which can solve your big problem.
Anyone can operate the microphone
Professional microphone boom operators know what to do and, importantly, they know what not to do. When your hand moves on the boom, it may touch the XLR interface cable, and these small sounds will be recorded along with the dialogue.
The microphone is very sensitive, and any sound from moving will be recorded. Therefore, the microphone operator must wear headphones, so that only the recorded sound can be heard without interference from the live sound.
Overlapping recording dialogue
Sometimes you need to change a dialogue individually, or take a dialogue from another shot, so the dialogue cannot be recorded over and over. A good way to avoid overlapping recording is to ask the actors to record separately, which increases the difficulty but reduces the post production work.
Use a song without permission, and then try to obtain the copyright afterwards
Copyright issues about music are common. If your movie needs a special tune, especially if your actors want to cover, be sure to obtain the copyright of the tune before shooting, or prepare a backup track. Because if you don't get the copyright, you may have to re shoot or give up.
A good microphone plus a good audio interface is an important basis for good recording. You don't need a wheat worth tens of thousands of dollars, but a good wheat will do a lot. The audio interface requires a clear preamplifier to reduce the noise entering the recording. Your recording software should also be better so as to avoid delay problems. Before you start recording, take a moment to get to know your tools.
Correct recording format
You need to decide in advance which recording format you want to use. If you use 8 bit and 8000 kHz for recording, don't expect good results. The best format for recording is wav or AIFF. Use the settings of 44100khz and 16bit to get * quality (this is the * small setting value to get good quality, you can set a higher value).
We always recommend not to use MP3 format to record, because this format can not capture the entire original audio spectrum. However, if you have to record in MP3 format, * use a setting of no less than 320kpbs.
The placement of Wheat
n order to capture the complete acoustic range of audio, the distance between microphone and mouth shall be appropriate during recording. Our experience starts with 9 inches. If it's too close, you may record breathing sounds and so on. If it's too far away, the recorded voice sounds dull and weak. At the same time, you need to use a blowout preventer to filter out breathing sound and "B" and "P" bursts. These plosives are difficult to solve by post-processing.
Make sure your recording level is within the green range! This is very important, because once your audio starts to be clipped (signal level exceeds 0 dB, that is to say, it turns red), your recording will have a very troublesome distortion, which cannot be processed later. However, the level should not be too low, because that will cause more noise in the signal. A proper level of - 6dB to - 4dB is a good starting point. Pay close attention to the recording level during the whole recording process.
Don't think about post-processing
Don't drag the error to mix and master band to remove. The post production stage can modify the audio, but the result depends on the quality of the original audio. Good recording = good mixing, and vice versa.
Noise - your enemy
Make sure that the fan and the air conditioner have been turned off. Close all the doors and make sure your neighbor's dog isn't barking. When recording, keep a distance from your computer to keep the noise of CPU fan at a low value. Keep the microphone on the stand all the time, which will reduce the noise caused by the movement of the hand to * small.
Many equipment will be out of tune during recording, so it's important to readjust. When singing, don't hold the idea that automatic tuning can solve all problems. A good recording with high quality intonation needs many attempts, but it is worth it.
Recording dry voice
Record all vocals and instrument sounds without any automatic effects. In this way, you can have more flexibility in post production. Once you use the add-on effect in the recording, it becomes a feature of the audio and cannot be removed later. If you want to use any effect, try to keep it small.
Train your mind and ears
How good your ears are, how good your recording will be. Listen to some good recordings or advertising recordings and compare them with your own. How do they sound compared to your recordings? If you are not satisfied with your recording results, you can use your own tools and recording equipment to do some experiments, watch more tutorials and learn. There is no shortcut to gain experience and knowledge