:-)) that was the reason I tried to argue, that percentage is pointless because its the same but without any relation to a fixed point. its simply not doable because it makes no sense. so do yourself a favor favour and think about your feelings and your relationship to math.Īnd forget about the percentage thing. :-)) math is your friend, as you can see here. life would be so much more difficult without math. :-))Īnd you know, that making music is practical math? someone told you already? so get over it, make your peace with math, nothing would work in this universe without math, so. percentages dont help - unless its drinakble, maybe. why would you want to have the exact number of decibels? when you mix, you do it by ear. ![]() you had to have a definition at first from what the percentage is calculated.Īnd you dont need a conversion. as someone had asked already, here again: percentage from what? percentage is relativ. Ok, percentage makes absolutely no sense. You hate math? and want percentage? sorry, here I am stuck. Oh, and not to forget, you can change the range of sliders and that is totally impossible to do with percentages. And as a bounus, other people know instantly what you mean also. Your sliders are scaled logartihmically (as decibels) and if you would put arbitary percents on the visual logartihmic slider, it would be same as using pounds for measuring height.īelieve me, decibels ain't hard. If you lower the piano volume by 15%, the change is practically inaudible. I understand your reasoning here but it doesn't work like that. To figure out the decibel equivalent doesnt help me only because percentage is easier to visualize when you are math dummy! Just the conversion from say 15% to decibel, it is easier for me to just say that I lowered the volume on my piano track about 15%. I only use the amount either percentage or decibel of volume amount when I have to turn it down a but then I keep a note in my song details. We use a correction factor added on top of the SPL value to calculate the nHL value.The only reason I ask this is because I HATE math and dealing with numbers. It describes the intensity level of stimuli used in the field of electrophysiology (ABR, ASSR, and so forth). The notation of nHL is a reference to the frequency-specific threshold of normal hearing subjects. If a person has a hearing loss of 60 dB HL at 1 kHz, then he or she cannot hear a pure tone that is presented below 60 dB HL. Hearing levels are measured with pure tones at different frequencies and the hearing level of an individual will vary depending on the frequency chosen. All other suffixes used in acoustics to describe loudness are calculated from the SPL value.ĭB HL refers to the hearing ability of a person and gives a statement about the severity of the hearing loss. It is the unit most often used in the calibration of signals in hearing testing equipment. dB SPL is an absolute and frequency-independent unit. ![]() This 20-micropascal reference was selected because it was the quietest sound pressure level that a group of normal hearing test subjects could detect. The most used are dB SPL and dB HL (Figure 1).įigure 1: Difference between dB SPL and dB HL.ĭB SPL is the measured pressure relative to 20 micropascals. In audiology, many different suffixes are appended to the unit of the dB. The dB was linked with audiology from the beginning because this mile of attenuation was considered the smallest amount of signal change that the average listener could detect. The dB (a 10th of a Bel) was derived from the attenuation of a signal transmitted along a mile of telephone cable. The decibel (dB) takes its name from Alexander Graham Bell, the inventor of the telephone. This brief guide offers you an overview on the most important details to know about the decibel. In the field of audiology, we are often presented with different quantities expressed in units of 'decibel'.
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