How to connect the AUD-1 to a Sarix camera that features no built in Audio?


AUD-1 and Sarix Cameras with no Built In Audio

Product Line

Pelco Cameras


  • IMS010DN-1V
  • AUD-1
  • Sarix Cameras with No Built-In-Audio. (Sarix cameras with Built-In-Audio feature Microphones or external Audio Wiring are excluded from this article!)


AUD-1 to Sarix for Audio Connection


The AUD-1 is an external audio accessory that can be connected directly to the accessory port of a compatible Pelco Device. The
AUD-1 is compatible with Sarix camera models that do not have built-in audio.

  • The AUD-1 is designed to work with microphones that feature an Internal Preamplifier and provide Line-Level output.
  • The AUD-1 is provided with different USB cables for connection to various Sarix Cameras.


Attach the appropriate USB cable (supplied) to the AUD-1. Connect other end of the USB cable to the Accessory Port of the IP camera.

  1. Ethernet Port
  2. Accessory Port

  3. Connecting the AUD-1 to Microphone: View the following related article for "Wiring the VERIFACT A microphone to the AUD-1 for the Sarix dome cameras"
  4. Microphone Requirements:
    - Microphone that provides a Line-Level Output (+4 dBu)
    - Preamplifier is required for microphones that require more power than 12 VDC.
    - UTP 600-ohm differential
  5. The maximum recommended cable length for the audio wiring is 304.8 m (1,000 ft).
  6. If your microphone is a consumer line-level device (-10 dBu), the audio output may be quieter than you expect.
    Mic-level devices are not recommended as they must be amplified to a line-level signal, which often results in excessive noise.


  1. Login to the Sarix IP camera as admin.
  2. Enter the SETTINGS tab.
  3. Place your mouse pointer over the A/V Streams tab
  4. Select Audio Configuration form the drop-down menu.
  5. Select Enabled in the Audio section.
  6. Select the audio device setting from the Audio Device drop-down box.

    - USB Line In: Enables audio from a microphone connected to the USB accessory port.
  7. Select the sample rate from the sample rate drop down box. The sample rate is the quality of the audio stream (rendered in hertz per second). The higher the value, the higher the audio quality. Available sample rate settings are 8000, 11025, 16000, 22050, 32000, 44100, and 48000 Hz. The default is 8000 Hz
  8. Select the encoding method for audio device from the Encoding drop-down box. Available encoding methods are PCMU, PCMA, and PCM16. The default setting is PCMU.
  9. Click the button next to Echo Cancelation (Enabled or Disabled) that you want to select.
  10. If required, click the button next to Mute to mute the audio device.

    - Note: Do not use the mute button on an audio device, as it will override the audio software settings. To mute the audio device, select Mute located on the Audio   Configuration page.
  11. Select the sensitivity of the input level by moving the Input level slider. Move the slider to the right to increase sensitivity level; move it to the left to decrease the sensitivity level. For example, if the camera is installed in a noisy environment or the connected microphone has a built-in line amplifier, set the sensitivity to a low setting. The setting range is 0 to 100.
  12. Click the Save button to save settings.