Logarithmic scales Music Tech

Which of the following statements about the logarithmic scale is true?

• Equal changes in dB do not represent equal changes in sound
• The scale is linear and consistent across all values
• It is primarily used for measuring voltage
• It allows for compact representation of wide-ranging data values

What does the term 'decibel' refer to?

• A method for calculating frequency
• A unit for measuring temperature
• One-tenth of a Bel
• A unit measuring sound intensity

What is the reference level for dBspl?

• 16,777,216 bits
• 1.0 volt
• 0.775 volts
• 0.00002 pascals

What is the main purpose of the dBV measurement?

• To measure electrical power
• To measure sound pressure levels
• To indicate digital audio levels
• To simplify voltage reference

Which decibel measurement is primarily used in audio equipment?

• dBu
• dBV
• dBfs
• dBspl

What does 0dBfs represent in digital audio?

• A linear measurement of sound intensity
• Sound pressure level of 0.00002 pascals
• A voltage level of 0.775 volts
• Full bit depth

How does a logarithmic scale differ from a linear scale?

• It compresses differences as values increase
• It maintains equal distance between markings
• It is used solely for measuring sound
• It is more complex and less efficient

Which of the following statements about decibel changes is accurate?

• Every decibel change represents the same sound intensity
• The change from -3dBu to 4dBu is always consistent
• Decibel changes are linear and predictable
• Not all dB increments yield equal voltage changes

What is the reference point for dBu measurements?

• Full scale at 24 bits
• 0.00002 pascals
• 1 volt
• 0.775 volts

Which of the following describes the threshold of pain in dBspl?

• 120 dBspl
• 0 dBspl
• 10 dBspl
• 80 dBspl