Audio Engineering

Why do we prefer "flat" frequency response?

The Music Telegraph | Text 2019/07/30 [14:17]
Audio Engineering

Why do we prefer "flat" frequency response?

The Music Telegraph| 입력 : 2019/07/30 [14:17]

▲ A typical microphone's frequency response

: An ideal "flat" frequency response means that the microphone is equally sensitive to all frequencies. In this case, no frequencies would be exaggerated or reduced (the chart above would show a flat line), resulting in a more accurate representation of the original sound. We therefore say that a flat frequency response produces the purest audio.

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Why do we prefer "flat" frequency response? 

 

Let me assume. You will be using a sine wave generator in many different applications in professional audio and music creation. It is therefore important to know how the output level of the  generator alters with changing frequencies. After all, if the generator has an output level at onefrequency that is different than other frequencies, then it becomes more of a headache to use. You would have to readjust the output level for every frequency you chose. This makes it difficult to do if you are constantly changing the frequencies. It would be better if we had a generator that had the same (constant) output level independent of the frequency selected. In the audio world, this characteristics is called a "flat" frequency response (because a graph of the frequencies and output levels would be a flat horizontal line). A flat response curve is good in audio. It allows us to set a level and not have to worry about it when we make changes to other variables.

 

 

 

 

 

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