> [...] is there a way to know how much dB (Decibels) each level represents?
No [1]. Suppose you leave the volume unadjusted (no attenuation, i.e. -10000):
- If a system's audio amplifier is cranked to the max, the sound pressure output will be greater than when its set to half etc.- Different WAVs may have different volume, regardless of hardware and software audio settings, a sound with a low amplitude waveform will produce less sound pressure than a sound with a more extreme waveform.
If you want to really know the dB SPL output on a given system for a given sound, you need to measure it using a suitable device, i.e. a sound level meter.
[1] I assume when your say "how much dB each level represents" what you are really asking about is *sound pressure level measured in dB* (cf. https://en.wikipedia.org/wiki/Sound_pressure#Sound_pressure_level). dB in and of itself is an abstract unit expressing a ratio on a logarithmic scale (cf. https://en.wikipedia.org/wiki/Decibel, particularly see https://en.wikipedia.org/wiki/Decibel#Uses; you seem to be mixing up or conflating dB use / meaning in acoustics vs. use / meaning in electronics).