Difference between revisions of "Colloquium"

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'''CCRMA Colloquium'''
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@5:30pm in the Classroom on Wednesdays!
  
The CCRMA Colloquium is a weekly gathering of CCRMA students, faculty and staff. It is an opportunity for members of the CCRMA community and guests to share the work that they are doing in the field of Computer Music.  The colloquium typically happens every Wednesday during the school year from 5:15 - 6:30.
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The CCRMA Colloquium is a weekly gathering of CCRMA students, faculty, staff, and guests. It is an opportunity for members of the CCRMA community and invited speakers to share the work that they are doing in the fields of Computer Music, Audio Signal Processing and Music Information Retrieval, Psychoacoustics, and related fields.  The colloquium typically happens every Wednesday during the school year from 5:30 - 7:00pm and meets in the CCRMA Classroom, Knoll 217, unless otherwise noted.  
  
 +
The colloquium team for 2019-2020 is:<br />
 +
Camille Noufi - cnoufi@ccrma.stanford.edu <br />
 +
Barbara Nerness - bnerness@ccrma.stanford.edu <br />
 +
Kunwoo Kim - kunwoo@ccrma.stanford.edu <br />
 +
Mike Mulshine - mrmulshine@ccrma.stanford.edu <br />
 +
<br />
  
Autumn Quarter Schedule
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*Note: the colloquium will not be held every Wednesday this year (20-21), please keep an eye on the notification e-mails for the dates.
  
'''[http://en.wikipedia.org/wiki/Electric_current Current]''' describes the quantity of electrons passing through a point in a circuit at a given instant in time.
 
Current is measured in '''[http://en.wikipedia.org/wiki/Ampere Amperes]''' ('''Amps''', '''A''').
 
  
'''[http://en.wikipedia.org/wiki/Voltage Voltage]''' describes the potential difference in electrical charge between two points in an electrical circuit. '''Voltage''' (also known as '''Electro motive force''' or '''EMF''') is measures in '''[http://en.wikipedia.org/wiki/Volt Volts]'''.
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= Autumn Quarter (2021)=
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<span style="color:red">'''In person colloquiua will not be held for the 2020 Autumn Quarter. All events will be held remotely.
  
'''[http://en.wikipedia.org/wiki/Electrical_resistance Resistance]''' (a special case of '''[http://en.wikipedia.org/wiki/Electrical_impedance Impedance]''') describes the capacity of a circuit element to resist or impede the flow of electrons in the circuit. '''Resistance''' in measure in '''[http://en.wikipedia.org/wiki/Ohm_%28unit%29 Ohms]'''.
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9/16 New Student Introductions
 +
** Speaker 1: Lloyd May
 +
** Speaker 2: Andrew Zhu
 +
** Speaker 3: Kathleen Yuan
 +
** Speaker 4: Marise van Zyl
 +
** Speaker 5: Hannah Choi
 +
** Speaker 6: Joss Saltzman
 +
** Speaker 7: Champ Darabundit
 +
** Speaker 8: Clara Allison
 +
** Speaker 9: David Braun
 +
** Speaker 10: Austin Zambito-Valente
  
A common analogy may be used to relate these three quantities to water flow in pipes in place of electrons in wires. Current is analogous to the quantity of water flowing through a pipe at a given moment in time. Imagine you have two water tanks connected from the bottoms by a pipe (such as the drain of a double sink). If one tank is full of water and the other one empty we know intuitively that the water in the full tank will flow through the pipe into the empty tank until the level of water in the two tanks is equalized. The water in the full tank near the drain pipe is under pressure caused by gravity acting on the water above it in the tank. The difference in pressure between the water at the bottom of the full tank and the bottom of the empty (or only slightly full tank) is analogous to the voltage between poles of a battery (recall that voltage is always measured with respect to two distinct point in a circuit). In the case of a battery there is an excess of electrons present at the negative pole which are attracted to the electron holes at the positive pole with a potential or voltage determined by the chemical and physical properties of the battery.
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9/23 Faculty/Staff Introductions
 +
**Speaker 1: Jonathan B. (flexible - can be later or next week - but prefer on early side)
 +
** Speaker 2: Ge Wang (also flex)
 +
** Speaker 3: Takako Fujioka (me too)
 +
** Speaker 4: Seán O Dalaigh (new DMA)
 +
** Speaker 5: Eleanor Selfridge-Field
 +
** Speaker 6: Craig Stuart Sapp
 +
** Speaker 7: Blair Kaneshiro (either week is fine)
  
Q: would the voltage change if we increased the amount of water in the full tank? yes - more water means more gravity acting on the water which results in greater pressure at the bottom of the tank.
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9/30 Faculty/Staff Introductions
 +
** Speaker 1: Patricia Alessandrini (via video)
 +
** Speaker 2: Julius Smith (can go either week any time)
 +
** Speaker 3: Marina Bosi
 +
** Speaker 4: Nando (aka Fernando Lopez-Lezcano)
 +
** Speaker 5: Stephanie Sherriff (any time on 9/30 is good)
 +
** Speaker 6: Constantin Basica
 +
** Speaker 7: Matt Wright (also flexible 9/30)
 +
** Speaker 8: Chris Chafe
  
Q: What happens if we open the pipe between the two tanks and let water flow? It flows from the full tank to the empty one until the level is the same in both. The same happens if you short the leads of a battery together without a resistor in between.
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10/7 - Break
  
So what governs the time taken to equalize the level in the two tanks? The diameter of the pipe. The larger the pipe the less resistance there is to the water flow (or current) and the faster the levels equalize. Placing a resistor in an electric circuit has the same effect as placing a constriction in a water pipe. The amount of flow (or current) is not fixed, but given the same water pressure (or Voltage) the smaller the constriction the less flow occurs. Increasing the water pressure can counteract the reduction in flow. You can think of a battery as a pair of tanks, one full extra electrons and one empty to which extra electrons are attracted. (does adding constrictions hold in water as for electricity?) .... '''Ohm's Law''' ...
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10/14 - Town Hall
  
==Ohm's Law==
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10/21 - Adjunct Faculty Talks (subject to schedule adjustments)
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** Speaker 1: Malcolm Slaney
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** Speaker 2: Poppy Crum
 +
** Speaker 3: Paul Demarinis
 +
** Speaker 4: Jonathan Abel
 +
** Speaker 5: Doug James
  
'''V = IR'''  Ohm's Law states that '''Voltage''' = '''Current''' x '''Resistance''' or '''V = IR'''. The equation can be rearranged to find any one of the three quantities given the other two.
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TBD - Rapid-Fire Talks
 +
** Speaker 1:
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** Speaker 2:
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** Speaker 3: Kunwoo Kim
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** Speaker 4: Elena Georgieva
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** Speaker 5: Noah Fram
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** Speaker 6:
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** Speaker 7:
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** Speaker 8:
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** Speaker 9:
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** Speaker 10:
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** Speaker 11:
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** Speaker 12:
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** Speaker 13:
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** Speaker 14:
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** Speaker 15:
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** Speaker 16:
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** Speaker 17:
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** Speaker 18:
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** Speaker 19:
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** Speaker 20:
  
Consider the following circuit:
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11/4 - Break
  
<center>
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11/11 - External Speaker (To Be Announced)
[[Image:Ohms_law_1.png]]
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</center>
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The voltage in the circuit is given (10V from the battery) and the resistance is also given as the 100 ohm resistor is the only resistive element in the circuit. So we can compute the current in the circuit as: I = V/R = 10V / 100 Ohms = 0.1 Amps or 100 milli-Amps.
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11/18 - External Speaker (To Be Announced)
  
==Button LED Example==
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11/25 - THANKSGIVING WEEK - Break
  
The following circuit diagram show the most basic LED (Light Emitting Diode) circuit:
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= Winter Quarter (2021)=
  
<center>
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* '''1/13:
[[Image:led.png]]
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* '''1/20:
</center>
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* '''1/27:
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* '''2/03:
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* '''2/10:
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* '''2/17:
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* '''2/24:
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* '''3/03:
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* '''3/10:
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* '''3/17:
  
Diodes are from the family of semiconductors. Unlike a resistors, diodes always have a fixed voltage drop in a circuit. A diode passes current in only one direction, a very useful property for protecting circuits from incorrect current flow. The arrow in the diode symbol points in the direction that current flows, so normally you would place a diode in your circuit with the arrow pointing to a ground.  Therefore once we know the current passing through the resistor in this circuit we also know the current passing through the LED. The brightness of an LED is proportional to the amount of current passing through it. How would you make the LED shine brighter? less brightly?
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= Fall Quarter (2019)=
  
Now consider the following circuit which adds a button:  
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* '''9/25: New Student Presentations''' (Week 1)
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** Speaker 1: Jeremy Raven
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** Speaker 2: Brendan Larkin
 +
** Speaker 3: Raul Altosaar
 +
** Speaker 4: Jan Stoltenberg
 +
** Speaker 5: Vivian Chen
 +
** Speaker 6: Ty Sadlier
 +
** Speaker 7: Kunwoo Kim
 +
** Speaker 8: Andrea Baldioceda
 +
** Speaker 9: Varsha Sankar
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** Speaker 10: Mike Mulshine
  
<center>
 
[[Image:button_led.png]]
 
</center>
 
  
The button simply interrupts or re-connects the flow of current through the circuit lighting or extinguishing the LED in the process.
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* '''10/2: Faculty Introductions''' (Week 2)
 +
** Speaker 1: Patricia Alessandrini
 +
** Speaker 2: Eleanor Selfridge Field
 +
** Speaker 3: Craig Stuart Sapp
 +
** Speaker 4: JRB
 +
** Speaker 5: Takako
 +
** Speaker 6: Ge
 +
** Speaker 7: Jarek
 +
** Speaker 8: Blair Kaneshiro
 +
** Speaker 9: Matt Wright
 +
** Speaker 10: Fernando Lopez-Lezcano
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** Speaker 11: Anne Hege
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** Speaker 12: Julius Smith
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** Speaker 13: Elena Georgieva
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** Speaker 14: Marina Bosi
 +
** Speaker 15: Hongchan Choi
  
<center>
 
[[PID 2007]]
 
</center>
 
  
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* '''10/9: ''' (Week 3): YOM KIPPUR - no colloquium
  
[[Category:PID]][[Category:PID_2007]]
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* '''10/16: Rapid-Fire Talks''' (Week 4)
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** Speaker 1: Jack
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** Speaker 2: Jason
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** Speaker 3: Ge
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** Speaker 4: Noah
 +
** Speaker 5: Elliot
 +
** Speaker 6: Barbara
 +
** Speaker 7: Orchi
 +
** Speaker 8: Matt (the "after" of my Modulations instrument, hopefully this time with MIDI working)
 +
** Speaker 9: CCRMA composting
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** Speaker 10: Jatin
 +
** Speaker 11: Mark
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** Speaker 12: Elena
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** Speaker 13: Carlos
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 +
 
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* '''10/23: [http://www.arj.no/ Alexander Jensenius]''' (Week 5) 
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* '''10/30: No Colloquium''' (Week 6) 
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* '''11/6: [http://www.annehege.com/ Anne Hege]''' (Week 7)
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* '''11/13: CCRMA Town Hall''' (Week 8)
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* '''11/20:[https://www.donlewismusic.com/ Don Lewis]''' (Week 9)
 +
 
 +
* '''Thanksgiving week'''
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 +
* '''12/4: [https://ccrma.stanford.edu/groups/vr/ VR Lab Day]''' (Week 11)

Revision as of 12:44, 28 October 2020

@5:30pm in the Classroom on Wednesdays!

The CCRMA Colloquium is a weekly gathering of CCRMA students, faculty, staff, and guests. It is an opportunity for members of the CCRMA community and invited speakers to share the work that they are doing in the fields of Computer Music, Audio Signal Processing and Music Information Retrieval, Psychoacoustics, and related fields. The colloquium typically happens every Wednesday during the school year from 5:30 - 7:00pm and meets in the CCRMA Classroom, Knoll 217, unless otherwise noted.

The colloquium team for 2019-2020 is:
Camille Noufi - cnoufi@ccrma.stanford.edu
Barbara Nerness - bnerness@ccrma.stanford.edu
Kunwoo Kim - kunwoo@ccrma.stanford.edu
Mike Mulshine - mrmulshine@ccrma.stanford.edu

  • Note: the colloquium will not be held every Wednesday this year (20-21), please keep an eye on the notification e-mails for the dates.


Autumn Quarter (2021)

In person colloquiua will not be held for the 2020 Autumn Quarter. All events will be held remotely.

9/16 New Student Introductions

    • Speaker 1: Lloyd May
    • Speaker 2: Andrew Zhu
    • Speaker 3: Kathleen Yuan
    • Speaker 4: Marise van Zyl
    • Speaker 5: Hannah Choi
    • Speaker 6: Joss Saltzman
    • Speaker 7: Champ Darabundit
    • Speaker 8: Clara Allison
    • Speaker 9: David Braun
    • Speaker 10: Austin Zambito-Valente

9/23 Faculty/Staff Introductions

    • Speaker 1: Jonathan B. (flexible - can be later or next week - but prefer on early side)
    • Speaker 2: Ge Wang (also flex)
    • Speaker 3: Takako Fujioka (me too)
    • Speaker 4: Seán O Dalaigh (new DMA)
    • Speaker 5: Eleanor Selfridge-Field
    • Speaker 6: Craig Stuart Sapp
    • Speaker 7: Blair Kaneshiro (either week is fine)

9/30 Faculty/Staff Introductions

    • Speaker 1: Patricia Alessandrini (via video)
    • Speaker 2: Julius Smith (can go either week any time)
    • Speaker 3: Marina Bosi
    • Speaker 4: Nando (aka Fernando Lopez-Lezcano)
    • Speaker 5: Stephanie Sherriff (any time on 9/30 is good)
    • Speaker 6: Constantin Basica
    • Speaker 7: Matt Wright (also flexible 9/30)
    • Speaker 8: Chris Chafe

10/7 - Break

10/14 - Town Hall

10/21 - Adjunct Faculty Talks (subject to schedule adjustments)

    • Speaker 1: Malcolm Slaney
    • Speaker 2: Poppy Crum
    • Speaker 3: Paul Demarinis
    • Speaker 4: Jonathan Abel
    • Speaker 5: Doug James

TBD - Rapid-Fire Talks

    • Speaker 1:
    • Speaker 2:
    • Speaker 3: Kunwoo Kim
    • Speaker 4: Elena Georgieva
    • Speaker 5: Noah Fram
    • Speaker 6:
    • Speaker 7:
    • Speaker 8:
    • Speaker 9:
    • Speaker 10:
    • Speaker 11:
    • Speaker 12:
    • Speaker 13:
    • Speaker 14:
    • Speaker 15:
    • Speaker 16:
    • Speaker 17:
    • Speaker 18:
    • Speaker 19:
    • Speaker 20:

11/4 - Break

11/11 - External Speaker (To Be Announced)

11/18 - External Speaker (To Be Announced)

11/25 - THANKSGIVING WEEK - Break

Winter Quarter (2021)

  • 1/13:
  • 1/20:
  • 1/27:
  • 2/03:
  • 2/10:
  • 2/17:
  • 2/24:
  • 3/03:
  • 3/10:
  • 3/17:

Fall Quarter (2019)

  • 9/25: New Student Presentations (Week 1)
    • Speaker 1: Jeremy Raven
    • Speaker 2: Brendan Larkin
    • Speaker 3: Raul Altosaar
    • Speaker 4: Jan Stoltenberg
    • Speaker 5: Vivian Chen
    • Speaker 6: Ty Sadlier
    • Speaker 7: Kunwoo Kim
    • Speaker 8: Andrea Baldioceda
    • Speaker 9: Varsha Sankar
    • Speaker 10: Mike Mulshine


  • 10/2: Faculty Introductions (Week 2)
    • Speaker 1: Patricia Alessandrini
    • Speaker 2: Eleanor Selfridge Field
    • Speaker 3: Craig Stuart Sapp
    • Speaker 4: JRB
    • Speaker 5: Takako
    • Speaker 6: Ge
    • Speaker 7: Jarek
    • Speaker 8: Blair Kaneshiro
    • Speaker 9: Matt Wright
    • Speaker 10: Fernando Lopez-Lezcano
    • Speaker 11: Anne Hege
    • Speaker 12: Julius Smith
    • Speaker 13: Elena Georgieva
    • Speaker 14: Marina Bosi
    • Speaker 15: Hongchan Choi


  • 10/9: (Week 3): YOM KIPPUR - no colloquium


  • 10/16: Rapid-Fire Talks (Week 4)
    • Speaker 1: Jack
    • Speaker 2: Jason
    • Speaker 3: Ge
    • Speaker 4: Noah
    • Speaker 5: Elliot
    • Speaker 6: Barbara
    • Speaker 7: Orchi
    • Speaker 8: Matt (the "after" of my Modulations instrument, hopefully this time with MIDI working)
    • Speaker 9: CCRMA composting
    • Speaker 10: Jatin
    • Speaker 11: Mark
    • Speaker 12: Elena
    • Speaker 13: Carlos


  • 10/30: No Colloquium (Week 6)
  • 11/13: CCRMA Town Hall (Week 8)
  • Thanksgiving week