Electronic device and method for dynamically adjusting output of headset

Abstract

An electronic device and a method for dynamically adjusting the output of a headset are provided in the invention. The electronic device includes a first connection interface, a processor and a storage device. When the first connection interface is coupled to the detection device, the first connection interface transmits detection-source signals to the detection device, and receives groups of headset output signals corresponding to the detection-source signals from the detection device. When the first connection interface is coupled to the detection device, the processor obtains gain information according a plurality of groups of measured headset signals corresponding to the groups of headset output signals, and when the first connection interface is coupled to the headset device, the processor dynamically adjusts the output of the headset device according to the gain information. The storage device is coupled to the processor and stores the gain information.

What is claimed is: 
     
         1 . An electronic device, comprising:
 a first connection interface, coupled to a detection device or a headset device, when the first connection interface is coupled to the detection device transmitting a plurality of detection-source signals to the detection device, and receiving a plurality of groups of headset output signals corresponding to the plurality of detection-source signals from the detection device;   a processor, coupled to the first connection interface, when the first connection interface is coupled to the detection device obtaining gain information according a plurality of groups of measured headset signals corresponding to the plurality of groups of headset output signals, and when the first connection interface is coupled to the headset device dynamically adjusting an output of the headset device according to the gain information; and   a storage device, coupled to the processor and storing the gain information.   
     
     
         2 . The electronic device of  claim 1 , wherein each group of headset output signals includes the corresponding detection-source signal at a different volume level. 
     
     
         3 . The electronic device of  claim 1 , wherein the headset includes a direct-current (DC) cancellation circuit and a bleeder circuit. 
     
     
         4 . The electronic device of  claim 3 , further comprising:
 a playing device, coupled to the processor and playing a source signal at a first volume level, and transmitting the source signal to the headset device through the first connection interface.   
     
     
         5 . The electronic device of  claim 4 , wherein the first connection interface receives an output signal which is generated by processing the source signal by the DC cancellation circuit and the bleeder circuit of the headset device. 
     
     
         6 . The electronic device of  claim 5 , further comprising:
 a recording device, coupled to the processor and recording the plurality of groups of measured headset signals and a microphone signal corresponding to the output signal.   
     
     
         7 . The electronic device of  claim 6 , wherein the processor samples the microphone signal every default period to obtain an effective-voltage value corresponding to the microphone signal in each default period. 
     
     
         8 . The electronic device of  claim 7 , wherein the processor determines whether the effective-voltage value is higher than a threshold, and when the effective-voltage value is higher than the threshold, dynamically adjusts the first volume level to a second volume level. 
     
     
         9 . The electronic device of  claim 1 , wherein the processor performs a Dynamic Range Control (DRC) analysis according the plurality of groups of measured headset signals. 
     
     
         10 . A method for dynamically adjusting an output of a headset, applied to an electronic device, the method comprising:
 coupling the electronic device to a detection device;   transmitting a plurality of detection-source signals to the detection device;   receiving a plurality of groups of headset output signals corresponding to the plurality of detection-source signals from the detection device;   obtaining gain information according a plurality of groups of measured headset signals corresponding to the plurality of groups of headset output signals;   unplugging the detection device from the electronic device;   coupling the electronic device to a headset device; and   dynamically adjusting the output of the headset according to the gain information.   
     
     
         11 . The method for dynamically adjusting the output of the headset of  claim 10 , wherein each group of headset output signals includes the corresponding detection-source signal at a different volume level. 
     
     
         12 . The method for dynamically adjusting the output of the headset of  claim 10 , wherein the headset includes a direct-current (DC) cancellation circuit and a bleeder circuit, and the method further comprising:
 playing a source signal at a first volume level; and   transmitting the source signal to the headset device through the electronic device.   
     
     
         13 . The method for dynamically adjusting the output of the headset of  claim 12 , further comprising:
 canceling a DC component of the source signal by the DC cancellation circuit of the headset device; and   performing a voltage-division process to the source signal which has canceled the DC component by the bleeder circuit of the headset device to generate an output signal.   
     
     
         14 . The method for dynamically adjusting the output of the headset of  claim 13 , further comprising:
 recording a microphone signal corresponding to the output signal.   
     
     
         15 . The method for dynamically adjusting the output of the headset of  claim 13 , further comprising:
 sampling the microphone signal every default period to obtain an effective-voltage value corresponding to the microphone signal in each default period.   
     
     
         16 . The method for dynamically adjusting the output of the headset of  claim 13 , further comprising:
 determining whether the effective-voltage value is higher than a threshold; and   dynamically adjusting the first volume level to a second volume level when the effective-voltage value is higher than the threshold.   
     
     
         17 . The method for dynamically adjusting the output of the headset of  claim 10 , further comprising:
 performing a Dynamic Range Control (DRC) analysis according the plurality of groups of measured headset signals.