Trouble playing sound files

[Hannah Witherstone]

I am very new to E-Prime so please bare with me!

I have run through the 'getting started' manual and all of the
tutorials within.  I have successfully completed Tutorial 2 which
pairs the sound files 'Bob' and 'Linda' with images.

I need to create my own experiment which pairs a static image with a
sentence (will more than likely be recorded in .mp3 format), to which
the participant has to press the space bar when they hear a key word
within the sentence.  I need the reaction time (in ms) to this target
word.

For some reason I cannot get E-Prime to run my own sound files.  I can
make my own experiment and use the Bob and Linda .wav files provided
with E-Prime, but when I try and substitute these file names for
anything else the experiment crashes.  I get varying error messages,
all relating to the script line:  "Slide1_SoundBuffer.Load".  The most
common error message is:

Run-time Error (Line 263)
18005: Cannot load sound file "hello.wav"
Mismatched or invalid block alignment

I *think* this is due to the sound file format set-up in the
Experiment Object Properties (where you can select channels, samples
and bits per sample).  I have tried every possible combination in this
section and still cannot get my files to play.  This is the case when
I use various .mp3, .wma and .wav formats.  I can play all of the
files fine through my laptop, so I know the sound files are OK.

Any help would be much appreciated as the manual is of no use!

Hannah

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