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No Audio is present on my video (Missing Heartbeat audio)

No sound is recorded during the ultrasound session or playback.

Possible Causes

  • Audio cable is damaged
  • Audio cable is not plugged into ultrasound machine and/or capture card
  • Audio cable is plugged into the incorrect port on the ultrasound machine
  • Audio-out port on the ultrasound machine is not functioning


Note: Not all ultrasound machines support export of audio, if its a portable ultrasound machine for instance then it does not have a audio-out port and only video can be captured.

Solutions

  1. Check Audio Cables:

    • Ensure the RCA-to-3.5mm or 3.5mm-to-3.5mm cable is securely connected.
    • Make sure they are plugged into the correct port on the ultrasound machine (should be the audio-out, white and red audio cables should be plugged into their respective color)
    • Inspect for damage, and replace if necessary.

    IMG_1690

  2. Confirm the Audio Output Port is functioning:

    • Verify that the ultrasound machine’s audio-out port is active by testing with external speakers or headphones.

  3. Verify Capture Card Connection:

    • Ensure the cable from the ultrasound machine’s audio-out port is connected to the line-in port on the capture card.

    photo-output (15)

  4. Test the Ultrasound Machine’s Audio:

    • Scan a barcode that can be used for testing purposes, generate motion on the display to initiate a recording (same process as with a client)
    • Switch the ultrasound machine to a mode that emits sound (e.g., heartbeat mode, PW Mode) and verify the output.
    • Scan the finish QR code to upload the ultrasound, check the video for audio within the admin portal. (https://admin.momitalk.com)

  5. Adjust Speaker Settings:

    • Check the speaker’s volume knob and ensure it’s powered via USB.

When to Contact Support

If no audio is recorded after these checks, contact the Help Desk at us_help@momitalk.com