Density measurement method and system for VoIP devices

A density measurement system implemented using circuitry and software for measuring a density of a single speech processing device including a plurality of channels each having an encoder and a decoder, where each one of the plurality of channels is coupled to another one of the plurality of channels to provide a plurality of coupled pairs, the single speech processing device having a processing power definable by millions of instructions per second (MIPS), the density measurement system comprising:

• a first signal injector module for injecting a first speech signal into a first one of each coupled pair of the single speech processing device;
• a second signal injector module for injecting a second speech signal into a second one of each coupled pair of the single speech processing device;
• a quality module connected to an output of each decoder;
• and
• an error module connected to an output of each encoder;
• wherein the quality module measures a quality value for each decoder, and the error module determines an error value for each encoder, and wherein the density measurement system determines the density of the single speech processing device based on the quality value of each decoder and the error value of each encoder, wherein the density is a determined number of the plurality of channels, which the single speech processing device can run simultaneously for a given MIPS available to the single speech processing device while maintaining an acceptable level of speech quality, divided by the given MIPS.