Welcome to my SCC Main Page.
Last updated 5/7/10.

My email is PankraS@scc.losrios.edu   My VoiceMail is: 916-568-3100 ext. 13234 (I check my email more often).
Office hours: 1p - 2:30p Mondays, plus TBA hours around the MUSM 306 Live Sound concerts during the semester. By appointment only - I'll need to schedule it and figure a location based on what you need to go over (hands-on the gear, homework/text, test results, overall review, etc.).
URL of this webpage: http://wserver.scc.losrios.edu/~pankras/index.html

SCC Application     SCC Audio Production Certificate/Degree: within Music.pdf     Computer access at LRC     Staff and Faculty contact, etc. info     Class calendar (holidays, finals, etc.)     Finals Schedules
Live Sound Reinforcement MUSM 306       Studio Recording Techniques MUSM 342       Certified Pro Tools Classes at SCC
Some of what's on this page:
SCC Audio Gear
Decibel exposure time guidelines, Hearing protection for musicians
Decibels, dbu, dbV, dbv, etc explained
Reference/Resource Pages
Other Online Docs
More links to Audio Websites
Map of the SCC Auditorium (Music) Bldg
Map of the SCC Campus
Fundamental Frequencies of Piano, Bass and Guitar
Free Magazine subscriptions
Info & Manuals, data sheets for some SCC Sound Gear:
  Digidesign gear used for certified Pro Tools classes 101, 110 and 201, version 8:
     Altiverb, Waves Platinum Bundle and Bomb Factory on TDM system
     Digidesign Control|24
     Digidesign D-Command
     Digidesign 192 I/O
     Digidesign PRE
     Digidesign SYNC I/O
  Otari Sound Workshop Series 54 32-channel mixer   Channel I/O block diagram Left Channel I/O block diagram Right
  Otari MX-80 2-inch 24-track tape machine
  Otari CB-140 Remote Controller and CB-120 Auto Locator
  Meyer HD-1 Near-field Studio monitors
  Meyer 833 Studio Reference monitors: Datasheet, Manual
  Meyer 834 Studio Subwoofers: Datasheet
  Meyer MS100A Stereo Amplifier
  Meyer CP-10 Parametric EQ
  AKG C1000S condenser mic
  AKG C414B-ULS condenser mic
  AKG C460B condenser mic with AKG CK61 capsule
  Crown SASS-P stereo mic
  Crown PZM30R boundary mic
  Shure SM58 dynamic mic (vocals) webpage and user guide
  Shure SM57 dynamic mic (instruments) webpage and user guide
  Shure Beta 58A dynamic mic (vocals) webpage and user guide
  Shure Beta 57A dynamic mic (instruments) webpageand user guide
  Shure SM81 condenser mic webpage and user guide
  Sennheiser MD421 II dynamic mic (we have original, very similar)   PDF Spec
  AKG D112 large diaphragm dynamic mic (kick drum)
  Countryman Type 85 active direct box (DI) documentation
  Stewart ADB-1 direct box (DI) (not much here)
  Furman PL-Plus Power Conditioner
  dbx 166 Comp/Limiter/Gate
  Lexicon PCM70 Digital Effects Processor
  Klark-Teknik DN 410 Dual Parametric Equaliser
  Symetrix 564E Quad Expander/Gates
  Aphex Expressors
  Aphex Expander/Gate
  Aphex Aural Exciter Type III
  BBE Sonic Maximizer 822A
  Eventide H3000 SE Ultra-Harmonizer   Search Eventide KnowledgeBase   Usage Tips
  Mackie Analog 8•Bus Mixer
  Mackie Analog 8•Bus Block Diagram on page 5
  Behringer Powerplay Pro-8 HA8000 Headphone Amp
  Panasonic SV-3700 DAT Deck
  Adams-Smith Zeta-Three Synchroniser
  Yamaha CDX-480 CD Deck
  Tascam 122 MkII Cassette Recorder

For use by musicians:
  Fender Twin Reverb amplifiers
  Ampeg bass amp
  Genz-Benz bass amp
  Yamaha drum set
  Latin Percussion congas
  Marshall 4-input keyboard amp

Gear in Rm A27:
  Yamaha AVS-700 AudioVideo Selector
  Yamaha Q2031 double 31-band EQ
  JVC HR-S4800U VHS
  Sony DVP-NS500V CD/DVD/SACD Player
  Yamaha KX 150 Cassette
  Sony PS-7FLII Turntable
  Rane AC22 Crossover
  JBL SR4718 subwoofer

  Link to SCC's Live Sound Gear
Useful Reference/Resource Pages:
Mackie Glossary
Rane Pro Audio Glosssary/Dictionary/Reference
The EV PA bible on ProSoundWeb
Rane Library: Tutorials
Some good articles about church sound (and fixed installations in general)
Dictionary of electrical terms for the sound engineer
Movie of Over-Under cable wrapping technique
Audio Cables FAQ (includes really expensive cables)

Theatrical Sound Engineering - an intro
W.A.M. Women's Audio Mission
Alternative Careers for Sound Engineers
Educational "Links We Like" from Digidesign Support

Caig De-Oxit - contact cleaner and de-oxidizer
Velcro 90924 Reusable Self-Gripping Ties, 8" x 1/2", black & gray, 50 Ties per pack for ~$5!
Velcro 94257 Reusable Self-Gripping Ties, 15" x 1/2", black & gray, 30 straps per pack for ~$5!

Other Online Docs for gear:
AKG AT (Audio Technica) Behringer Crown Amps Community dbx EV (Electro-Voice) Furman Mackie QSC Rane Docs, Tech Info Yamaha
(I've got boatloads of other links - please ask...)

Pages w More links to Audio Websites:
Hyperreal Manufacturers Links
AES (Audio Engineering Society

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...
Decibel Exposure Time Guidelines
Accepted standards for recommended permissible exposure time for continuous time weighted average noise, according to NIOSH and CDC, 2002. For every 3 dBs over 85dB, the permissible exposure time before possible damage can occur is cut in half.
Continuous dBPermissible Exposure Time
85 db8 hours
88 dB4 hours
91 db2 hours
94 db1 hour
97 db30 minutes
100 db15 minutes
103 db7.5 minutes
106 dB3.75 min
109 dB1.875 min
112 dB.9375 min (~1 min)
115 dB.46875 min (~30 sec)
vs.
(Sigh) From OSHA website:
90db8 hours
93db5.3 hours
96db3.5 hours
99db2.3 hours
102db1.5 hours
105db1 hour
108db0.66 hour (40 minutes)
111db0.44 hour (26 minutes)
115db0.25 hour (15 minutes)
118db0.16 hour (10 minutes)
121db0.11 hour (6.5 minutes)
124db0.072 hour (4 minutes)
H.E.A.R. Hearing Education and Awareness for Musicians
Etymotic ER-20 Earplugs docs
Etymotic ER-20 Earplugs for $12: 12-20db drop, fairly flat.
vs
Sonic II earplugs: great for gunshots, not flat at all.
Newsweek story about hearing loss among musicians, etc.

Decibels and their variations (dBv, dBu, dBV, dBm) Explanations in increasing level of complexity:
http://www.soundonsound.com/sos/1994_articles/feb94/decibels.html
http://stason.org/TULARC/entertainment/audio/pro/3-3-What-is-the-difference-between-dBv-dBu-dBV-dBm-dB.html
http://emusician.com/tutorials/emusic_decibels_demystified_part/
http://en.wikipedia.org/wiki/Decibel

Calculator that converts between db versions
Map of the SCC Auditorium (Music) Bldg (it's a maze)

Free Magazine subscriptions
Free subscription to TapeOp
Free subscription to Pro Audio Review

1 rackspace = 1U = 1.75inches = 44.45mm

Search the audio newsgroups archives at google (enter "*audio*" in the "newsgroups" field).

Audio Engineering Society (AES): Education

Technical Standards publications of interest to audio engineering:
Audio Engineering Society (AES)
Acoustical Society of America (ASA)
International Electrotechnical Commission (IEC)
International Organization for Standardization (ISO)
International Telecommunications Union (ITU)

Fundamental Frequencies of Piano
 Piano Kybrd
Courtesy of Vibrationdata.com
Piano Page


PIANO KEYBOARD
The number beside each key is the fundamental frequency in units of cycles per seconds, or Hertz.
OCTAVES
For example, the A4 key has a frequency of 440 Hz.
Note that A5 has a frequency of 880 Hz. The A5 key is thus one octave higher than A4 since it has twice the frequency.
OVERTONES
An overtone is a higher natural frequency for a given string. The overtones are "harmonic" if each occurs at an integer multiple of the fundamental frequency.


Fundamental Frequencies of notes on Guitar and Bass Guitar in Hz (261.63 is middle C on a piano)
Guitar
E A D G B E
0 (open) 82.41 110.00 146.83 196.00 246.94 329.63
1 87.31 116.54 155.56 207.65 261.63 349.23
2 92.50 123.47 164.81 220.00 277.18 369.99
3 98.00 130.81 174.61 233.08 293.66 392.00
4 103.83 138.59 185.00 246.94 311.13 415.30
5 110.00 146.83 196.00 261.63 329.63 440.00
6 116.54 155.56 207.65 277.18 349.23 466.16
7 123.47 164.81 220.00 293.66 369.99 493.88
8 130.81 174.61 233.08 311.13 392.00 523.25
9 138.59 185.00 246.94 329.63 415.30 554.37
10 146.83 196.00 261.63 349.23 440.00 587.33
11 155.56 207.65 277.18 369.99 466.16 622.25
12 164.81 220.00 293.66 392.00 493.88 659.26
13 174.61 233.08 311.13 415.30 523.25 698.46
14 185.00 246.94 329.63 440.00 554.37 739.99
15 196.00 261.63 349.23 466.16 587.33 783.99
16 207.65 277.18 369.99 493.88 622.25 830.61
17 220.00 293.66 392.00 523.25 659.26 880.00
18 233.08 311.13 415.30 554.37 698.46 932.33
19 246.94 329.63 440.00 587.33 739.99 987.77
20 261.63 349.23 466.16 622.25 783.99 1046.50
21 277.18 369.99 493.88 659.26 830.61 1108.73
22 293.66 392.00 523.25 698.46 880.00 1174.66
   Bass Guitar
E A D G
0 (open) 41.20 55.00 73.42 98.00
1 43.65 58.27 77.78 103.83
2 46.25 61.74 82.41 110.00
3 49.00 65.41 87.31 116.54
4 51.91 69.30 92.50 123.47
5 55.00 73.42 98.00 130.81
6 58.27 77.78 103.83 138.59
7 61.74 82.41 110.00 146.83
8 65.41 87.31 116.54 155.56
9 69.30 92.50 123.47 164.81
10 73.42 98.00 130.81 174.61
11 77.78 103.83 138.59 185.00
12 82.41 110.00 146.83 196.00
13 87.31 116.54 155.56 207.65
14 92.50 123.47 164.81 220.00
15 98.00 130.81 174.61 233.08
16 103.83 138.59 185.00 246.94
17 110.00 146.83 196.00 261.63
18 116.54 155.56 207.65 277.18
19 123.47 164.81 220.00 293.66
20 130.81 174.61 233.08 311.13
21 138.59 185.00 246.94 329.63
22 146.83 196.00 261.63 349.23
credit: http://www5.ocn.ne.jp/~dgb/index_e.htm


"Allegro Audio" my personal audio webpage

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