Portland Cellular Corpus
                            Release 1.3

              Center for Spoken Language Understanding


UPDATED: 23 August 2002


Overview
--------
The Portland Cellular Corpus is a collection of cellular
Telephone speech samples (7571 utterancs) and corresponding
Orthographic transcriptions.  Some phonetic transcriptions
are included in the corpus.

Speech was collected from 515 different speakers calling
the CSLU data collection system on celular telephones.
Callers were asked to repeat certain phrases and respond to
other prompts.  The complete list of prompts is shown
below.

An attempt was made to determine if the caller was calling
from within a vehicle or not.  Based on this determination,
a few of the prompts were different, for example, callers
from within a vehicle were asked how fast they were
traveling, callers from outside a vehicle were not.

Not every caller provided a response to each prompt.  The
Statistics section below gives counts of the number of
recorded responses for each prompt.

Statistics
----------
This section provides counts of how many instances of each
utterance are in the corpus.

bnoise      	234
brand       	380
date        	359
dob         	405
dora        	396
environ     	167
fast        	165
flpnum      	370
fphone      	386
growup      	405
horm        	165
horm_niv    	226
lastname    	749
location    	232
morf        	417
nlang       	411
phone2      	364
spelllastname	382
story1      	 38
story2      	 38
story3      	 34
story4      	 37
story5      	 43
story6      	 43
story7      	 41
story8      	 44
story9      	 38
time        	357
traffic     	167
week        	360
yorn        	500

Protocol
--------
Here is a list of the prompts that were asked each
participant.  If the caller was calling from within a
vehicle, the in_vehicle part would be used, otherwise the
not_in_vehicle part would be used.  The string in {} after
the prompt is a "type key" that is used to identify those
utterances that are responses to the corresponding prompt.


    Thank you for calling the Oregon Graduate Institute. 
    In collaboration with Cellular One we are collecting
    speech samples from cellular phones.  The speech
    samples you provide will allow us to perform basic
    research that may lead to improved services for
    cellular phone users.  We will share the speech data
    you provide with other researchers, but your identity
    will be kept confidential. 
    
    Are you calling from within a vehicle?  Please say yes
    or no. {yorn}
    
    
    *** In vehicle protocol ***
    The first four questions provide us with background
    information.  Please wait for the beep before speaking.
    {iv_inst1}
    
    Are you male or female? {morf}
    
    What is your native language? {nlang}
    
    What city and state did you grow up in? {growup}
    
    What is your date of birth? {dob}
    
    The answers to the next set of questions will provide
    information about driving conditions and the recording
    conditions in your car.
    
    Please tell us if your window is open, or if you are
    using the windshield wipers, heater or radio? {environ}
    
    Briefly describe the traffic conditions. {traffic}
    
    About how fast are you traveling right now? {fast}
    
    Are you using a digital or analog phone? {dora}
    
    If you know the brand and model of your cellular phone,
    Please tell us now {brand}
    
    Are you using your phone's handset or a mounted
    microphone? {horm}
    
    The answers to the next questions will provide us with
    some background information about you and some examples
    of spoken digits and letters.
    
    Please say your last name. {lastname}
    
    Please spell your last name. {spelllastname}
    
    Please say a familiar license plate number. {flpnum}
    
    Please say a familiar phone number. {fphone}
    
    What time is it now? {time}
    
    Please say another phone number. {phone2}
    
    What is today's date? {date}
    
    Please say the days of the week. {week}
    
    The last question is designed to provide samples of
    natural continuous speech.  When you hear the beep,
    we would like you to talk for about half a minute and 
    
        tell us something about yourself. {story1}
        describe a typical day in your life. {story2}
        tell us what you like most about where you 
             live. {story3}
        tell us about your family. {story4}
        tell us about your dream home. {story5}
        tell us something about the town where 
             you grew up. {story6}
        tell us about your favorite restaurant. 
             {story7}
        tell us about your favorite sport or 
             hobby. {story8}
        tell us about your favorite movie or 
             television show. {story9}
    
    We would like you to keep talking until you hear two
    beeps.  We will give you a moment to collect your
    thoughts.  Please begin speaking at the beep.
    
    Thanks again for your help.  If you would like to
    receive a gift certificate to McDonalds, TCBY, Bdaltons
    books, Baskin-Robbins, or Blockbuster video, please let
    us know which one, and leave your name and address.
    Hang up when you are finished. {address}
    
    *** Not in vehicle protocol ***
    The first four questions provide us with background
    information about the caller.  Please wait for the beep
    before speaking.
    
    Are you male or female?
    
    What is your native language?
    
    What city and state did you grow up in?
    
    What is your date of birth?
    
    The answers to the next questions will provide
    information about the source of background noise during
    your call.
    
    Please describe your location. {location}
    
    Please identify any background noises that we may be
    hearing while you speak.  For example, is the radio or
    TV on?  Are there other people speaking nearby?
    {bnoise}
    
    Are you using a digital or analog phone?
    
    If you know the brand and model of your cellular phone,
    Please tell us now
    
    Are you speaking directly into your phone's handset or
    a speaker phone? {horm_niv}
    
    The answers to the next questions will provide us with
    Some background information about you and some examples
    of spoken digits and letters. 
    
    Please say your last name.
    
    Please spell your last name.
    
    Please say a familiar license plate number.
    
    Please say a familiar phone number.
    
    What time is it now? 
    
    Please say another phone number.
    
    What is today's date?
    
    Please say the days of the week.
    
    The last question is designed to provide samples of
    natural continuous speech.  When you hear the beep, we
    would like you to talk for about half a minute and 
    
        tell us something about yourself.
        describe a typical day in your life.
        tell us what you like most about where 
             you live.
        tell us about your family.
        tell us about your dream home.
        tell us something about the town where 
             you grew up.
        tell us about your favorite restaurant.
        tell us about your favorite sport or hobby.
        tell us about your favorite movie or 
             television show.
    
    We would like you to keep talking until you hear two
    beeps. We will give you a moment to collect your
    thoughts.  Please begin speaking at the beep.
    
    Thanks again for your help.  If you would like to
    receive a gift certificate to McDonalds, TCBY, Bdaltons
    books, Baskin-Robbins, or Blockbuster video, please let
    us know which one, and leave your name and address.
    Hang up when you are finished.