Au - Audio Levels & Lingo
- Adam Barrett (Unlicensed)
Key Audio terminology | |
|---|---|
| Frequency Frequency is the number of waveforms generated in one second The average adult human audio range for hearing is between 20hz - 20Khz |
| Amplitude How much the sound wave fluctuates up and down Files with smaller fluctuations will be softer and bigger fluctuations will be louder |
| Sample Rate The higher the sample rate the more detail in the audio Film and TV use a sample rate of 48,000 Hz (48 kHz) CD's will generally use 44.1 kHz |
| Bit Depth The higher the Bit Depth the greater the dynamic range = greater the amplitude range |
Audio Levels | |
| -18 dB Minimum audio range for dialogue Background noise A good starting point for background, ambient audio is to set the levels around -24 to -34 to start with then adjust according to the rest of your mix |
| -12 dB Average audio levels for dialogue Average All dialogue should average around -12 dB (give or take a range of 4 dB) |
| -6 dB Maximum audio range for dialogue Spot Effects If you are looking for impact relative to the average audio range then -6 dB is a good range for spot effects - ie. a gun shot, a door slamming, etc. |
| 0 dB - Distortion Distortion You have run out of audio information at this point, the export will crunch the data and you will have terrible sounding distorted audio |
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