Electronic device, method, and non-transitory computer-readable storage medium for controlling output of audio in wireless environment

A method executed in an electronic device with communication circuitry for Bluetooth low energy (BLE) and a speaker, the method comprising:

• receiving information for a first periodic advertisement of a second external electronic device, through the communication circuitry from a first external electronic device;
• receiving, based on the information, at least one first packet advertised according to the first periodic advertisement, through the communication circuitry;
• after synchronizing to broadcast isochronous stream (BIS) from the second external electronic device based on the at least one first packet, deferring to output audio of the BIS with a reference volume until start of rendering of data for the BIS that is indicated by at least one second packet advertised according to a second periodic advertisement of the second external electronic device;
• and
• controlling the speaker to output the audio with the reference volume based on the rendering of the data received from the second external electronic device.

One or more non-transitory computer readable storage media storing one or more computer programs including computer-executable instructions that, when executed by one or more processors of an electronic device with communication circuitry for Bluetooth low energy (BLE) and a speaker individually or collectively, cause the electronic device to perform operations, the operations comprising:

• receiving information for a first periodic advertisement of a second external electronic device, through the communication circuitry from a first external electronic device;
• receiving, based on the information, at least one first packet advertised from the second external electronic device according to the first periodic advertisement, through the communication circuitry;
• after synchronizing to broadcast isochronous stream (BIS) from the second external electronic device based on the at least one first packet, deferring to output audio of the BIS with a reference volume until start of rendering of data for the BIS that is indicated by at least one second packet advertised from the second external electronic device according to a second periodic advertisement of the second external electronic device;
• and
• controlling the speaker to output the audio with the reference volume based on the rendering of the data received from the second external electronic device.