Perceptual Audio File

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Any perceptual question asked by an interviewer can also contain pre-recorded audio you would like the respondent to hear.


Typical uses of this feature include:


Playing a music montage for the respondent, and asking about their level of interest in that type of music


Playing a clip of a personality or morning show bit, and asking about their level of enjoyment or awareness for that personality


Playing a music montage and asking respondents which radio station they would most closely associate with that type of music.


HandEach Workstation must have a functioning sound card and a telephone playback interface to use this feature.


Most Workstations will already have a sound card (although the Workstation might not have speakers, which is fine).  If your Workstations don't have sound cards, please contact ComQuest Technical Support and we'll be glad to supply you with them.


Also, you will have to obtain a telephone playback interface device.  We recommend the TR-70 from TT Systems ( - $12.95 each). This item is also available from - it is their item # 43-1237, and at press time was priced at $14.99 each.



TTSystems' TR-70


One end of the device plugs into the headset jack on your Workstation Plantronics headsets, and the other end plugs into the speaker jack of the Workstation's sound card.


You also need to get the following items from Radio Shack:


270-054 Ground Loop Isolator

42-2436  Y-Adapter Audio Cable

274-326b Mini Jack to Phono Plug adapter

274-1553a Phono Plug couplers


Use the RCA to Mini/Stereo cable that comes with the Ground Loop Isolator, and plug the Stereo Mini right into the Sound Card (Green/Speaker jack).  Then the Y-Adapter takes the other end out of the Isolator, and monos it to one RCA jack... this then goes into the coupler and the other end of the coupler goes to the Mini Jack To Phono Plug Adapter.  This is what the TR-70 then plugs into.


Adding An Audio Clip To A Perceptual Question


The first step is to produce the actual audio element.  Remember, unlike the interactive questions you would ask on the Fileserver once the respondent is transferred over to take the test, the audio file in a perceptual question will be started by the interviewer.  You can include specific instructions in the perceptual question for the interviewer to introduce the audio clip, then play it, then come back after it plays to solicit a response from the person.  The wrap-around voice elements do not have to be included as part of the actual audio clip (although they certainly may be, if you wish...)


In the case of a music montage, you will probably first want to produce this element in your production room.  Make sure it is high-quality, tight and recorded in Mono (we can't play stereo down the phone line!).  Either save it in a digital format, and move it to your ComQuest Fileserver, or record it to cassette and then load it through Cool Edit on your Fileserver.


In any case, it must be saved as a Windows PCM wave file in the C:\ComQuest folder on your Fileserver.  We recommend saving it as 8,000 cycle 8-bit or 16-bit mono, to minimize disk space on each computer.  Any audio files you're using in perceptual questions will be copied from the C:\ComQuest folder on your Fileserver to the C:\ComQuest folder on each Workstation. (This happens automatically when each interviewer logs into the ComQuest program on their Workstation.)  If you wish to change or update any audio file (such as freshening the songs in a music montage), simply record the new audio, and save it with the same name in the C:\ComQuest folder on the Fileserver (overwriting the existing/old file).  The Workstation will detect there is a new version of that audio file available (based on the datestamp of the file on the Fileserver), and copy the new version the next time this question is needed.


HandIf you have multiple databases on your ComQuest Fileserver, all audio still needs to reside in the C:\ComQuest folder only!


If you have multiple databases, and you want to utilize different audio files for perceptual questions in various databases, be sure to name them each uniquely.  In other words, don't use a name like Montage1.wav in each folder (if this montage is indeed going to be different).  Instead, name them WAAA1.wav, WBBB1.wav, etc.


HandThe file name of each audio clip must be 8-characters or less!


Once the audio has been produced and saved/recorded on your ComQuest Fileserver, you can assign it to any perceptual question(s) you desire.  Go to the desired Perceptual Survey, and bring up the question to which you wish to add the audio file.  In the lower right corner of the settings for each question, you'll see the Audio File field:



Specifying Perceptual Audio


You can type the full name of the audio file in the field, but we recommend using the file lookup button the right of the Audio File field.  This will eliminate typing mistakes, and will confirm that the file you want to link to this perceptual question exists.  The path is not needed; each Workstation will copy the file from the main Fileserver's C:\ComQuest folder if it doesn't already have it (or update it if the version on the Fileserver is newer than the one currently on the Workstation).


See also

Perceptual, Make Calls