| 摘要 |
Voice quality testing of digital wireless networks is carried out using a pair of units 29, 30, each unit 29, 30 having a substantially identical sound card 20. Each unit 29, 30 has a port 24 for connection to a communication terminal 32, 34 allowing audio signals to be transmitted over the wireless network by one unit 29 or 30 and received by the other 30 or 29. One unit 29 or 30 derives the audio signal to be transmitted from an originating data set and the other unit 30 or 29 converts the audio signal to produce a received data set. The received data set is then analysed against the originating data set to determine the voice quality of the network.
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