1. 예배자학교 3 RD SESSION SOUND & THE SYSTEM THE FIRST PRESBYTERIAN CHURCH OF WATERLOO 워터루제일한인장로교회 PREPARED BY JA-YEON CHOI

2. SOUND WAVES Amplitude Frequency

3. AMPLITUDE (LOUDNESS) Threshold of hearing : 0dB Threshold of pain: 130dB

4. FREQUENCY (PITCH)

5. PITCH TO FREQUENCY MAPPINGS Frequency limit of hearing for human : 20Hz ~ 20kHz

6. CORRESPONDING SOUNDS

7. DIGITAL SOUND

8. DEVICES Input : Mic, Instruments, Sound playing devices… Cable : 1/4”, 1/8” cables, RCA, XLR… Sound Board (mixer) : Various channels and effects Amplifier + Equalizer + Compressor/expander… Speaker

9. COMMON CONNECTORS How to distinguish between stereo and mono?

10. XLR CABLE A way to eliminate the noise

11. DEVICES Input : Mic, Instruments, Sound playing devices… Cable : 1/4”, 1/8” cables, RCA, XLR… Sound Board (mixer) : Various channels and effects Amplifier + Equalizer + Compressor/expander… Speaker

12. PASSIVE AND ACTIVE DEVICES

13. EQUALIZATION (EQ) Boosting or lowering signal at (a) certain frequency(ies)

14. COMPRESSOR

16. WITH OR WITHOUT INSERT

17. CHANNEL (TRACK) Input Gain Sends (Monitor) EQ Panning Mute/Solo Fader Output (Main & Bus)

18. SENDS (AUX)

19. POST & PRE SETTINGS

20. PAN & BUS CONTROL

21. GOOD MIX

22. QUESTIONS!