Check hazardous Axis audio settings before changing microphone power

Bottom line: Check the device’s hazardous-settings response before changing audio power. Match the proposed setting to the actual connected hardware and input capability instead of treating an available dropdown value as approval to energize it.

Source fact: documented behavior

Axis’s Audio Device Control provides getDevicesCapabilities for available audio capabilities, getDevicesSettings for current parameters and getHazardousSettings for hazardous settings.

The hazardous-settings example is intended to identify settings potentially harmful to hardware if used incorrectly.

The documented capability response describes accepted gain values and power types, with available power types associated with a signaling type.

What the source does not establish

Do not infer that absence from a returned warning list proves a setting safe for an unidentified microphone. Require the connected equipment’s own power specification and qualified installation review. Do not generalize the documentation’s sample hazardous value to every product, and keep acoustic acceptance separate from electrical compatibility.

Applicability questions

• Which actual device, input and connected microphone or other source are being configured?
• Which connection and signaling type apply to that physical input?
• What power types and hazardous settings does the target device report?
• Has the installer confirmed the connected equipment’s documented power requirements?

DSE recommendation: controlled next steps

The following steps are DSE recommendations based on the cited source.

DSE recommends reviewing capability, current-state and hazardous-setting responses together before approving an audio power change.

1. Identify the physical input and attached equipment before editing configuration. Obtain its manufacturer power requirements and have the qualified installer confirm the intended connection. Retrieve the target device’s supported audio capabilities and current settings through the documented interface. Record identifiers at the device, input, connection and signaling levels so the proposed change cannot drift to another microphone.
2. Retrieve hazardous settings from the same device and compare them with the proposed power selection. For the review, prepare a hypothetical mismatch between the requested power type and the attached equipment’s approved requirement; do not apply that mismatch. Require the reviewer to reject or escalate it even if the setting is offered by the device. Keep sample response values clearly separate from real returned values.
3. After the electrical review, schedule the approved supported change and preserve the original settings. Apply only the selected input change, then read the current settings again. Have the installer verify the connected equipment through its permitted procedure and the audio owner perform an authorized listening check. If identification or power requirements remain uncertain, stop before energizing or experimenting with alternative values.

Verification and evidence

Retain sanitized capability, current-state and hazard responses, the exact connected-equipment reference and the approved input mapping. Record the previous and intended power selection and the installer’s disposition. Keep passwords and private audio content outside the configuration worksheet.

For the proposed acceptance exercise, ask a second reviewer to reconstruct why the selected power type was approved for this input and equipment. Require separate entries for configuration readback, electrical review and audio observation. Record actual results only when performed; the procedure does not certify a power setting or guarantee the safety of an unspecified microphone.

Official references

• Audio Device Control — Axis Communications; official VAPIX documentation.

Source review completed October 29, 2026. Recheck the official documentation and the deployed device’s capabilities before changing production settings.