Two-channel balance method and electronic device using the same

An electronic device, comprising:

• a sound receiving unit;
• a left speaker unit;
• a right speaker unit;
• a gain-frequency adjustment unit configured to adjust a gain-frequency information of a two-channel signal;
• a delay calculation unit configured to calculate a sampling delay information of the two-channel signal according to a distance information among the sound receiving unit, the left speaker unit and the right speaker unit;
• an audio file generation unit configured to generate a forward test audio file or a surround test audio file according to the sampling delay information;
• a phase offset estimation unit configured to estimate a phase offset information according to at least the forward test audio file or the surround test audio file;
• a phase offset direction determination unit configured to determine a phase offset direction information;
• and
• a phase adjustment unit configured to adjust a phase information of the two-channel signal according to the phase offset information and the phase offset direction information.

An electronic device, comprising:

• a gain-frequency adjustment unit configured to adjust a gain-frequency information of a two-channel signal;
• a phase offset direction determination unit configured to determine a phase offset direction information;
• a phase adjustment unit configured to adjust a phase information of the two-channel signal according to a phase offset information and the phase offset direction information;
• a left speaker unit;
• and
• a right speaker unit, wherein the left speaker unit and the right speaker unit are configured to play the two-channel signal which is adjusted,
• wherein the phase offset direction determination unit plays a forward left offset test audio file, a surround left offset test audio file, a forward right offset test audio file and a surround right offset test audio file, and determines the phase offset direction information according to a forward left offset sound pressure amplitude information of the forward left offset test audio file, a surround left offset sound pressure amplitude information of the surround left offset test audio file, a forward right offset sound pressure amplitude information of the forward right offset test audio file and a surround right offset sound pressure amplitude information of the surround right offset test audio file.