wavWriter

The seismograms are the WAV sound format and written to files in the location indicated by location. If multiple seismograms are found for a channel seismograms past the first will be written out with a number appended to their file name. ie the second seismogram will be filename.1 and the third will be filename.2. Set speedup to the appropriate speedup to allow seismic waves to be audible, 2000 is a good first choice, allowing surface wave dispersion to be heard. Lower speedups may be needed for smaller events, but there appears to be a minimum resulting sample rate of 1000 samples per second for the wave format to be playable, so using upsample may be required..

Example 

<wavWriter>
    <workingDir>seismograms</workingDir>
    <location>${network.code}.${station.code}/${event.filizedTime}/${site.code}.${channel.code}.sac</location>
    <speedup>2000</speedup>
</wavWriter>

This consists of

Places this can be found

In seismogramProcess there is a choice between all of the following