What is max SPL (Maximum Sound Pressure Level) in a microphone скачать в хорошем качестве

What is max SPL (Maximum Sound Pressure Level) in a microphone

Let's cut to the chase. Max SPL is the abbreviation for Maximum Sound Pressure Level. So, what is Max SPL? It is the maximum sound pressure level the mic can process without distorting the original sound. So, max SPL is the threshold at which microphone's output signal starts distorting. The louder the sound, the higher the pressure. Therefore, max SPL is the maximum loudness of the sound source. Just to emphasis that max SPL is not a threshold at which your microphone would get damaged. The most common cause of a distortion is the overloading of the microphone's electronic circuitry. In other words, the electronics inside the microphone determines its max SPL and not the mic's diaphragm or capsule. Electronic circuitry of condenser and active ribbon mics get overloaded more easily and hence are more susceptible to Sound Pressure than dynamic and passive ribbon microphones. But, what do we mean by distortion and how it is measured? Distortion means that the output signal doesn't fully represent the input signal due to the overloading of the electronic circuitry. The max SPL is measured by calculating the Total Harmonic Distortion. THD is the percentage of distortion present in the output signal. By increasing the SPL, the THD increases. Once, THD reaches 1%, then it is classified as the max SPL. 1% THD is used as a threshold because human ear cannot detect any distortions below 1% THD. THD is measured by applying a sine wave as an input voltage to the electronic circuitry of mic and then measuring a number of harmonic voltages. Therefore, THD is the ratio of Root Mean Square of number of measurements of harmonic voltage divided by the voltage of the fundamental component. The fundamental component is the pure sine wave. It is difficult to compare the THD of one microphone with another, without knowing test signal frequency range, level and gain conditions and number of measurements taken. Voltage is applied directly to circuitry rather than sound because it is impractical and inconsistent to reproduce such a high loudness. Therefore, the applied voltage is then converted into theoretical SPL by using the microphone's sensitivity. It means that the diaphragm or capsule of the microphone are not tested for distortion, as they are unlikely causes for distortion. If you're just recording your voice, then max SPL is not as important. However, if you want to record a tambourine or a drum, then having higher max SPL would ensure that you could record without distortion. Some examples of high max SPL are Up to 130 dB SPL for a mic at half a meters of a trumpet Up to 135 dB SPL for a mic at an inch from Loudest human voice Up to 145 dB SPL for a mic inside a kick drum I can't finish this video without mentioning that loud sounds can be very harmful to your ears. World Health Organization (WHO) recommend maintaining environmental noises below 70 dBA over 24-hours. CDC provides a good guidance on the level of loudness of various sound sources. It is helpful to use these values and compare them against the microphone's max SPL and see whether your microphone is able to handle your desired loud sound sources. If you're not intended to record high loudness sounds, then you don't need to be worried about the max SPL. Did you know if the sound pressure levels exceed 194 dB SPL, it creates a vacuum and hence no air molecules to form the negative parts of the sounds wave! So, 194 dB SPL is the physical limitation of the sound itself. If you have any questions, please let me know in the comments below 😊 👉More Videos👇 👉 condenser vs shotgun mic -    • condenser vs shotgun mic   👉 What is Microphone Output Impedance -    • What is Microphone Output Impedance   👉 Sound waves, frequencies & human hearing explained -    • Sound waves, frequencies & human hearing e...   👉 Microphone Reviews -    • Microphone Reviews   👉 Maono condenser microphone set review - AU PM422 -    • Maono condenser microphone set review - AU...   👉 Comica BoomX-U review -    • Comica BoomX-U review - wireless microphone   👉 LensGo LYM DMM2 Supercardioid Microphone Review -    • LensGo LYM DMM2 Supercardioid Microphone R...   👉 Sennheiser MKE 600 Shotgun Microphone Review, Unboxing, Testing -    • Sennheiser MKE 600 Shotgun Microphone Revi...   👉 How to connect mic to phone -    • How to connect mic to phone   #BhupinderTube #microphone