Portable Recording Units

Three portable recording systems are available for students who wish to run experiments off-site. Each set consists of a Marantz Flash Recorder, Headmounted Shure Mic and a Direct Injection (DI) Box.

Equipment Setup

• Insert an SD card into the SD card slot on the left side of the Marantz.

• Connect the Shure WH20 headmounted mic to the left input of the Marantz Flash Recorder.

• Turn the Marantz Flash Recorder on.
• Press the "Input" button until the input device on the main screen reads "mono mic".

The following steps are specific to the TriggerWave method.

• Insert an SD card into the SD card slot on the left side of the Marantz.
• Plug the headphone output from your laptop to the "HighZ" input of the DI box
• Connect the "LowZ" output of the DI box to the right channel of the Flash Recorder

• Connect the headmounted mic to the left input of the Marantz Flash Recorder.

• Click the "Input" button until the input device on the main screen reads "stereo mic".

Recording and Saving Audio

• Press the "Rec Pause" button.
• Have the subject vocalize. Adjust the levels for the left channel using the gain controls. You want to have the volume level as high as possible but just a little below the maximum level.

• Pull the red "record" switch to begin recording. Press "stop" to end the recording. The Marantz Flash Recorder saves the audio to the SD card as a wave file.

• Remove the SD card from the side of the Marantz. Insert the card into the USB card reader.
• Plug the card reader to your computer and copy your audio files from the SD card reader. Delete the originals.
• Return the SD card into the Flash recorder.