Multimedia:audio example:8,000 samples/sec, 256 quantized values:64,000 bps quantization quantized error value of receiver converts bits back to analog value analog signal: analog some quality reduction signal example rates ■CD:I.4 II Mbps time ■MP3:96,I28,160kbps sampling rate (N sample/sec) Internet telephony:5.3 kbps and up Multimedia Networking 9-4 Multimedia: audio ▪ example: 8,000 samples/sec, 256 quantized values: 64,000 bps ▪ receiver converts bits back to analog signal: • some quality reduction example rates ▪ CD: 1.411 Mbps ▪ MP3: 96, 128, 160 kbps ▪ Internet telephony: 5.3 kbps and up time audio signal amplitude analog signal quantized value of analog value quantization error sampling rate (N sample/sec) Multimedia Networking 9-4