1. Commonly used reference sound pressures , defined in the standard �Pa in water. 2. L eq value ( equivalent sound pressure level ), defined by standards. 3. They were touted to deliver up to 126 decibels of sound pressure . 4. The pitch of lower tones gets lower as sound pressure increases. 5. Affected articles include decibel, sound pressure , sound pressure level, and audiogram. 6. Affected articles include decibel, sound pressure, sound pressure level, and audiogram. 7. For a sound source, unlike sound pressure , sound power is neither room-dependent nor distance-dependent. 8. At the beginning of the cycle, sound pressure is normal. 9. Examples of potentials are : force, sound pressure , voltage, temperature. 10. Two views of the sound pressure waveform at different resolutions may be viewed simultaneously.