---
title: No Audio is present on my video (Missing Heartbeat audio)
description: No sound is recorded during the ultrasound session or playback.
---

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1. [Bomee Knowledge Base](https://support.bomee.io/?hsLang=en)
2. [Troubleshooting (Bomee Equipment)](https://support.bomee.io/troubleshooting-bomee-equipment?hsLang=en)

# 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](https://support.bomee.io/hs-fs/hubfs/IMG_1690.jpg?width=340&height=255&name=IMG_1690.jpg)
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)](https://support.bomee.io/hs-fs/hubfs/photo-output%20(15).jpg?width=372&height=248&name=photo-output%20(15).jpg)
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.bomee.io). (https://admin.bomee.io)
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@humanscape.io**

- [Troubleshooting (Bomee Equipment)](https://support.bomee.io/troubleshooting-bomee-equipment?hsLang=en)
- [Bomee Equipment & Services (Guides)](https://support.bomee.io/bomee-equipment-services-guides?hsLang=en)
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