Apparatus and method for outputting sound in mobile terminal

A method for sound output at a sound output apparatus including a switch electrically connecting an output line of a first amplifier to a second amplifier or a receiver, the method comprising:

• determining whether a Hearing Aids Compatibility (HAC) mode is set to ‘ON’ or ‘OFF’;
• connecting the output line of the first amplifier to the second amplifier at the switch when the HAC mode is set to ‘ON’;
• amplifying and transferring an electric signal to the second amplifier at the first amplifier when a sound output command is input;
• amplifying and transferring the electric signal to a receiver at the second amplifier;
• and
• converting and outputting the electric signal into a sound at the receiver.

A sound output apparatus, comprising:

• a control unit comprising a modem chip, the modem chip comprising a first amplifier configured to amplify and transfer an electric signal to a switch;
• and
• an audio processing unit comprising a receiver, a switch, and a second amplifier,
• wherein the switch is configured to selectively connect an output line of the first amplifier to the receiver or the second amplifier,
• wherein the second amplifier is connected with the receiver and the switch and configured to amplify and transfer an electric signal received from the first amplifier to the receiver when the switch is connected the output line of the first amplifier to the second amplifier, and
• wherein the receiver is connected with the switch and the second amplifier and configured to convert and output an electric signal received from the first amplifier or the second amplifier into a sound.