Welcome to my Live Sound Reinforcement Class Webpage.
Last updated June 2022. .
Link to Main Page (has material applicable to both Recording, Live Sound and General Audio Production)
Watch for homework, quiz, etc. announcements here.
Upcoming concerts
Some of what's on this page:
Textbooks Online
Class info
Homeworks, Handouts, etc.
Formulas, Additional Resources
Attendance and Homework are 40% of your grade!
Homework will be corrected and returned, but not graded.
Due dates for homework and take-home quizzes are final - no late work accepted. Work is due at the beginning of class.
If you cannot return an assignment to me at classtimes, you may leave it BEFORE THE BEGINNING OF CLASS in my box in the HFA office (A19).
Occasionally, depending on circumstances, I may allow you to email your work to me; you MUST EMAIL IT BEFORE THE END OF THE CLASS PERIOD in which it is due.
MUSM 306 is an alternative course for MUSM 342, the 1st Recording Studio Techniques class.
Either MUSM 306 or MUSM 342 may be used as the prerequisite for MUSM 344, the 2nd Recording Studio Techniques class.
MUSM 306 may also be taken for elective credit by those who have already taken MUSM 342.
Books Online:
Modern Recording Techniques: Author: Huber & Runstein , ISBN: 9780240810690; Edition/Copyright: 7th 2009; Publisher: Focal Press, Inc.; Cover: Paperback
via bookfinder.com
Overstock.com
Amazon
• The 'Yamaha' book: (NOT REQUIRED)
via bookfinder
at Amazon
• The 'Mix' book: (NOT REQUIRED)
via bookfinder.com
at Amazon
Handouts, homeworks, etc: in appx chronological order. (REF: not required, for further study)
REF Decibel cross-reference re distances, power, etc.
REF Illustration of the Inverse-Square Law for Sound
REF Inverse-square decibel worksheet
REF A good description of hearing and the decibel scale
REF Fletcher-Munson Equal Loudness Curves
REF Distortion 101
REF Haas Effect (aka Precedence Effect) at Wikipedia
REF Bass? Midrange? Treble?
Decibel Exposure Time Guide
Line level: balanced vs unbalanced: +4 dBu vs -10 dBV or -20bBV; 1.3V vs 0.3V
Octaves, Harmonics, Wavelengths
Fletcher-Munson Equal Loudness Curves on 'All Church Sound' site.
Freq's, Staves, and Piano graph
Audio connectors and wiring handout
Webpage access, email, hearing protection
Homework Ch1, Ch2
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REF Older Ribbon Microphones and Phantom Power: "Harmed or even destroyed"
REF Some good graphics and explanations of Mic types
REF EV RE20 dynamic mic (also known as PL20 - little proximity effect due to Variable-D design)
REF How do VU and dB meters differ?
3Ds of Mic patterns
Balanced vs unbalanced Audio
Countryman Type 85 active direct box (DI) documentation
Homework on Chapter 4
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Videos of the 'over-under' cable wrapping technique: here
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REF Patch Bays w half-normal, full-normal: info on a dbx manual and Sweetwater.com
Patch Bays w half-normal, full-normal: graphics with explanatory text here
AH GL2400 mixer brochure.pdf
AH GL2400 mixer blockdiagram.pdf
AH GL2400 mixer manual
Homework on Chapter 13
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REF Q: Quality factor. The selectivity factor: the ratio of the center frequency f divided by the bandwidth BW (upper freq - lower freq at 3db down from peak value).
REF Q vs Bandwidth Calculator
REF Notes on Pink and White Noise
REF Further info on effects
Musicians, this is for you - we can't get a good sound for your audience if you won't work with us!
Moulton Labs: Good explanation of phase cancellation/comb filtering
EQ Article w Vocal and Instrument Freqs
Ringing out monitors (getting rid of feedback)
Homework on Chapter 14
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REF Representation of Numbers (Binary, Decimal, etc.)
REF Decimal/Binary/Hex Calculator
Dithering:
REF Digital Audio and
Wikipedia
Dithering:
at PC Recording
Homework on Chapters 6 & 7
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REF Amplifier Classes (general info - lots o' tech)
REF Amplifier damping factor explanation Marantz and Wikipedia
REF Speaker wire on Wikipedia
REF Definition for Intermodulation Distortion (IMD) at Sweetwater
AWG Wire Resistance
Amplifier output hookups (stereo, bridged)
Hafler Pro6000 amp
Homework on Chapter 12 and Hafler amp
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REF Speakon Connectors explained
REF Speakon Connectors from Neutrik
REF Top 10 Ways To "Toast" Speakers and Diaphragms
REF dbx DriveRack loudspeaker management systems
Speaker Combination Impedances
Series vs parallel
Crossover basics
Homework on Chapter 16
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REF Acoustic Treatment and Design for Recording Studios and Listening Rooms
REF Rane Sound System Interconnection Note 110 (re ground loops, etc.)
Room Acoustics and Helmholtz Resonators
Ground loops (hum, noise)
Furman Power Conditioners
Homework on Chapter 3
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Troubleshooting Worksheet (Use ' SCC SR Stereo Flowchart' and 'SCC SR Stereo Wiring' from above)
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Some of these are Word and Excel docs I created, others are links to online Acrobat pdf's, gifs, jpegs, or html, etc websites. If you have any difficulties with the Excel or Word docs, please let me know. (IE opens them OK on my WinXP system, which doesn't have Excel on it)
Please let me know if any links don't work or have died. I run a linkchecker regularly, but some websites seem to get 'redecorated' constantly...
Formulas :
Frequency = 1 / the period of one cycle (Ex: 1 / 10 milliseconds = 100Hz)
FYI: Period of one cycle = 1 / Frequency (Ex: 1 / 100Hz = 0.010 seconds = 10 millisec's)
Wavelength (lambda, Λ) = Velocity / Frequency
Wavelength = The distance it takes for a wave to complete one cycle, in feet or meters.
Velocity = Speed of Sound (~1130 feet per second, ~1ft/msec, ~344 meters per second)
Frequency is measured in Hz (Hertz) or Cycles per second (cps)
Simple Feedback Ear Trainer (for Windows only)
Dictionary of electrical terms for the sound engineer
ProSoundWeb: Old Soundman
PSW Sound Reinforcement Forums
Harmony Central: PA Basics and Glossary for Newbies
Yorkville Basic P/A Systems Primer and P/A Basics and User Tips Guide
SCR light dimmer Noise Source
"Allegro Audio" my personal audio webpage
Funny "Mr Soundman" mp3
"2nd Most Horrible Sound in the World" - Feedback!
The Great Sound Guy Pet Peeve Post!
Skin cancer is colorblind -- no 'free pass' for POCs
FREE FOH Magazine Subscription
FREE Live Sound International
URL of this page: http://books57.net/LiveSound.html
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