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• Higher bandwidth and fidelity needed
• satisfy higher customer expectations from WiFi codecs
• Better quality is perceived by more than just bandwidth
• Analog to digital conversion accuracy and compression efficiency
• Media impairments – information loss and jitter
• Common MOS scores usually compared without impairments
• Playing an audio clip encoded from a common analog source and then decoded for human
evaluation
• Simple measure of the encode decode quality
• A true measure of a codec needs to also consider how it performs in
imperfect conditions
• Cellular tower load and distance
• Inconsistent content delivery due to buffering, system clock cycles, dropped packets
Audio Quality and Customer Stickiness
