D-Link DCS-5220 User Manual page 49

Section 3 - Configuration
Advanced Audio Coding (AAC) is a wide band audio coding algorithm that exploits two primary coding strategies to
Audio type:
dramatically reduce the amount of data needed to convey high-quality digital audio. Select a higher bit rate number for
better audio quality.
AAC bit rate:
Select an AAC bit rate from the drop-down list. Higher bit rate means higher audio quality but it takes more network
bandwidth to transmit.
GSM-AMR:
A standard adaPTZd audio codec by the 3GPP video (3rd Generation Partnership Project). It is an Adaptive Multi Rate-
Narrow Band (AMRNB) speech codec. Select a higher bit rate number for better audio quality.
GSM-AMR Select the GSM-AMR bit rate from the drop-down list. Higher bit rate means higher audio quality but it takes more network
bit rate: bandwidth to transmit.
D-Link DCS-5220 User Manual 49