Volume of sound adjustment method, electronic device thereof and non-transitory computer readable storage medium device thereof

An electronic device, comprising:

• an audio output element, configured to output an audio with a played volume;
• a microphone, configured to detect a volume of environmental noise;
• a storage device, configured to store a setting volume;
• and
• a processor, electrically connected to the microphone, the audio output element, and the storage device, wherein the processor is configured to perform the following steps:
• comparing the volume of environmental noise with the setting volume, and setting the lower one of the volume of environmental noise and the setting volume as a first target volume and setting the higher one as a second target volume;
• and
• controlling the audio output element to gradually adjust the played volume from the first target volume to the second target volume at an adjusting speed,
• wherein the storage device stores a plurality of alternative adjusting speeds, and the processor selects the adjusting speed from the plurality of alternative adjusting speeds according to the detected volume of environmental noise, wherein when the volume of environmental noise is detected to be a first volume, the processor selects a first alternative adjusting speed from the plurality of alternative adjusting speeds as the adjusting speed;
• and when the volume of environmental noise is detected to be a second volume, the processor selects a second alternative adjusting speed from the plurality of alternative adjusting speeds as the adjusting speed, wherein the first volume is lower than the second volume and the first alternative adjusting speed is slower than the second alternative adjusting speed.

A non-temporary storage readable memory medium device, storing a plurality of program codes, wherein when an electronic device loads and executes these program codes, these program codes enable the electronic device to perform the following steps:

• outputting an audio with a played volume;
• detecting a volume of environmental noise;
• comparing the volume of environmental noise with a setting volume, and setting the lower one of the volume of environmental noise and the setting volume as a first target volume and setting the higher one as a second target volume;
• selecting the adjusting speed from a plurality of alternative adjusting speeds according to the detected volume of environmental noise;
• selecting a first alternative adjusting speed from the plurality of alternative adjusting speeds as the adjusting speed when the volume of environmental noise is detected to be a first volume;
• and selecting a second alternative adjusting speed from the plurality of alternative adjusting speeds as the adjusting speed when the volume of environmental noise is detected to be a second volume, wherein the first volume is lower than the second volume and the first alternative adjusting speed is slower than the second alternative adjusting speed;
• and
• gradually adjusting the played volume from the first target volume to the second target volume at an adjusting speed.