STG FOR PC™ RECORDING DIRECTIONS


Start here:

1. Insert the Stethographics electronic stethoscope into a microphone port of your sound card.

2. Open Stethographics 1 channel STG by double-clicking Stethographics STG1 icon on your desktop.

3. Indicate stethoscope position by clicking anywhere on the Summary Display.

4. Cick the Record button or press "R" to start collecting data

5. On the Recording Information Dialog fill in patient first and last name, diagnosis and patient ID. Specify digital filter configuration and click OK.

6. Test recording by gently tapping the electronic stethoscope diaphragm. You should see sharp spikes on the waveform window. If you do not see sharp spikes go to step 5 of Recording Steps in the STG Help.

7. To record a tracheal sound position the stethoscope on the neck - you may use your own or your fiend’s neck. Breath regularly with your mouth open. Avoid sound clipping - keep recording in the green region. Avoid finger noise by holding the chest piece steadily. The finger noise is sometimes indistinguishable from crackles and may be counted by the software as crackles.

8. Save the recording with the the Save button or press "S".

9. Play back the recording with the Play button or press "P".

10. On the waveform display observe relatively louder expiration than inspiration. Expand time amplitude plot to observe an apparently random undulating pattern of the waveform.

11. Repeat steps 3 - 10 to record vesicular sounds. Avoid hair noise. You may want to wetten up hair to reduce hair noise. The hair noise is sometimes indistinguishable from crackles and may be counted by the software as a crackle. Avoid talking during the recording. Talking is often indistinguishable from wheeze and may be counted by the software as a wheeze.

12. On the waveform display observe relatively louder inspiration than expiration.

Warning:

1. Avoid finger noise by holding the chest piece steadily. The finger noise is sometimes indistinguishable from crackles and may be counted by the software as crackles.

2. Avoid hair noise. You may want to wetten up hair to reduce hair noise. The hair noise is sometimes indistinguishable from crackles and may be counted by the software as a crackle.

3. Avoid talking during the recording. Talking is often indistinguishable from wheeze and may be counted by the software as a wheeze.