Recommended
More Related Content
Similar to Sound Basics with Audio Technik
Similar to Sound Basics with Audio Technik (20)
Recently uploaded
Recently uploaded (20)
Sound Basics with Audio Technik
- 1. Sound and Audio The Basics https://www.audiotechnik.com.au
- 2. Subject Overview • What, How and Why? – Goal – Sound & Audio • Inputs – Microphones • Types – Phantom Power • Polar Pattern – Line Level • Balanced & Unbalanced • Mixers – Signal Path – Gain – EQ – Metering – Routing • Loudspeakers – Types – Systems – Crossovers • System Overview – Cabling
- 3. What, How and Why? Goal • To support or amplify an acoustic or electronic signal • To enrich a performance or presentation • To be heard and not scene
- 4. What, How and Why? Sound & Audio Sound • The vibration of molecules in a physical medium • Can be amplified With or without electronic devices Audio • The Representation of sound in an electronic state. • Requires transducers to Input and output into a Sound wave
- 5. Inputs - Microphones • Types: – Dynamic – Condenser – Ribbon – Electret condenser – Carbon – Piezoelectric
- 6. Inputs - Microphones • Types: – Dynamic – Condenser – Ribbon – Electret condenser – Carbon – Piezoelectric
- 8. Dynamic Microphones • High Sound Pressure Level (SPL) • Requires a high amount of gain • Performs well in rugged environments
- 9. Dynamic Microphones • Shure SM58 • Shure SM57 • Sennheiser E904
- 11. Condenser Microphones • Low Sound Pressure Level (SPL) • Requires a small amount of gain • Performs well in sensitive environments • Requires 48V (Phantom Power)
- 12. Condenser Microphones Phantom Power • Typically 48v DC • Required a Balanced Cable • Sends 48v + down pin 2 and 3 of an XLR and 48v – down the shield • Can destroy line level equipment and other input devices
- 13. Condenser Microphones • Rode NT5 • AKG C414
- 14. Inputs - Microphones • Polar Patterns: – Omni Directional – Cardioid – Hyper Cardioid – Super Hyper Cardioid – Figure 8
- 15. Polar Patterns • Omni Directional – Picks up Everything – Short pick up distance
- 16. Polar Patterns • Cardioid – Directional – medium pick up distance – Proximity effect
- 17. Polar Patterns • Figure 8 – Phasing – medium pick up distance – Proximity effect – Placement is Key
- 18. Inputs – Line Level Devices • What is Line Level? – An audio signal that has been amplified between -10 and +4dbu • What creates a line level signal? – CD Players -10 to +4 dbu – Headphone outputs -10 dbu – Mixers -10 to +4 dbu – TVs -10 dbu • What is a balanced and un-balanced line?
- 19. Inputs – Line Level Devices • Balanced line + - ⏚ + - ⏚
- 20. Inputs – Line Level Devices • Un-Balanced line + - ⏚ + - ⏚
- 21. Mixers • Signal Path • Gain • EQ • Metering • Routing
- 22. Mixers- Signal Path • Standard signal path of an Analog Mixing Unit (AMU) Mic - 50dbu Line - 10dbu 48 v θ Gain EQ PFL Fader AUX Pre/Post Mic/Line AFL Meter Solo Pan L R
- 23. Mixers- Gain • Structure • Distortion • Noise Floor • Unity
- 24. Mixers -Gain • Sine Wave and effects of Gain +16dbU ±0dbU -70dbU Noise Floor Headroom
- 25. Mixers - EQ • Frequency • Filters • Bandwidth
- 26. Mixers - EQ
- 27. Mixers - Metering • PPM • VU • SOLO/PFL • AFL
- 28. Mixers - Routing • Auxileries – Pre or Post fader • Master – Left, Right, Mono • Groups/Buses • Matrix • Panning
- 29. Loud Speakers • Types and Boxes • Systems • Crossovers
- 30. Speakers - Types • Moving Coil – Woofer – Compression Driver • Ribbon
- 31. Speakers - Types • Moving Coil – Woofer – Compression Driver • Ribbon
- 34. Speakers - Systems • Active – No external amplifiers needed • Passive – External Amplifier Required
- 36. Speakers - Crossovers • Active or Passive
- 37. Practical Test • Set up a simple sound system • Demonstrate – Gain Structure – Equalisation – Routing • Requirements – Two different types of microphones – Two different sends of speakers – At least on line input