A smartphone using a Bluetooth audio interface can select one of a plurality of available encoder/decoders, or codecs, to process audio data. Based on changes in one or more link quality characteristics, such as signal strength or a number of retransmissions, the smartphone automatically and dynamically changes the codec employed by the audio interface. The smartphone thereby increases the link quality, thereby improving the user experience.
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Kuo, Ray, "Dynamically Switching Bluetooth Codec Based on Link Quality", Technical Disclosure Commons, (April 09, 2020)