<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Greetings!</div><div><br class="webkit-block-placeholder"></div>We have a somewhat noisy background in our call center, and I'd like to reduce this. Obviously, we could plaster the walls with sound absorbing material, but is there anything we can do in software either using any algorithms for our open source-based SIP library or inside Asterisk itself? Related to this, anyone have a good source for good panels?<div><br class="webkit-block-placeholder"></div><div>We are using Plantronics noise canceling headsets, which don't really seem to work all that well. Our ancient system handled noise much better, but I suspect that was partly due to the Dialogic ADPCM algorithm used that just reduced the intelligibility of lower volume noises in general. We are using PCMU direct from the agent's mic to through Asterisk to PRIs, so we don't "suffer" from compression artifacts. The down side, is that you can make out even very quiet conversations in the background (like 3 agents to one side.)</div><div><br class="webkit-block-placeholder"></div><div>How have people handled this? I'm experimenting with a noise gate that will lower the volume when the agent isn't talking, but that won't help when the agent is talking.</div><div><br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><div>Norman Franke</div><div>ASD, Inc.</div></div></span></span> </div><br></div></body></html>