Mar 8, 2005 #1 S stephen_h Junior Member level 2 Joined Mar 6, 2005 Messages 20 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,441 We are going to build VOIP phones. I want to know how to qualify the voice quality in packetized voice.
We are going to build VOIP phones. I want to know how to qualify the voice quality in packetized voice.
Mar 9, 2005 #2 D dolby.yang Member level 4 Joined Mar 2, 2005 Messages 73 Helped 10 Reputation 20 Reaction score 2 Trophy points 1,288 Activity points 1,862 you shoud use hardware filter and DSP to get qualified voice signal.
Mar 9, 2005 #3 S stephen_h Junior Member level 2 Joined Mar 6, 2005 Messages 20 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,441 dolby.yang said: you shoud use hardware filter and DSP to get qualified voice signal. Click to expand... I knew the the basic architecture of the VOIP phones should a ARM plus some analog front-end. I want to knew that the Qos (Quality of Service) on the voice quality. How is bad and how is acceptable?
dolby.yang said: you shoud use hardware filter and DSP to get qualified voice signal. Click to expand... I knew the the basic architecture of the VOIP phones should a ARM plus some analog front-end. I want to knew that the Qos (Quality of Service) on the voice quality. How is bad and how is acceptable?
Mar 11, 2005 #4 B bernie75 Member level 1 Joined Jul 19, 2002 Messages 41 Helped 3 Reputation 6 Reaction score 1 Trophy points 1,288 Activity points 185 Hi the traditional way is to use Mean opinion Score (MOS). But what you can measure is Delay, Packet Lost and Echos.
Hi the traditional way is to use Mean opinion Score (MOS). But what you can measure is Delay, Packet Lost and Echos.
Apr 11, 2006 #5 B bobn Newbie level 4 Joined Apr 11, 2006 Messages 6 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,317 can any one give me info abt MOS