Questions
1. Name and describe five types of production tasks that ProTools can be used for.
2. What’s the frequency range of human hearing?
3. What does the frequency of a sound wave effect in terms of how we perceive the sound? How is frequency measured?
4. What does the amplitude of the sound wave affect? How is amplitude measured?
5. How does the sample rate of a system relate to the frequency of audio it can capture? What is the name of the law that specifies the relationship between sample rate and audio frequency?
6. How does the bit depth relate to the dynamic range of audio it can capture. How can you estimate the dynamic range of a system?
7. What are some common digital connections available on Pro Tools audio interfaces? What type of connector jack does each use?
8. Name some audio interfaces that are compatible with standard Pro Tools software.
9. Name some Avid audio interfaces that are compatible with Pro Tools | Ultimate software.
Answers
1. Pro Tools can be used for Midi, Audio, Mixing, Post Production, Mastering and Notation.
2. 20hz – 20,000hz
3. Frequency is expressed in Hz. The wave’s frequency is one hz, which is equal to one cycle per second. The number of cycles completed per second.
4. Amplitude is measured in the loudness of the sound
5. Nyqiust theory is the law that specifies the relationship between sample rate and audio frequency.
6. The greater the bit depth means more amplitude can be captured from a signal. To create a look at the dynamic range of the dynamic range of the system you are using. Take the bit depth and multiply it by 6 to find the range of dBs it can cover.
16bit/44khz (mono)= 5mb per min
16bit/44.1khz (stereo)= 10mb per min
16bit/96khz (mono)= 11mb
24bit/44.1khz, mono = 7.5mb
7. S/pdif, RCA, XLR, Aes/ebn
8. Any scarlett interface. kmix, universal audio interfaces, behringer. To name a few.
9. MTRX Base unit, HD Native Thunderbolt, HD I/O 16×16 Analog, Omni