Abstract: A method of processing audio files includes the steps of providing an audio frequency adjusting section, via which one or more first audio files may be changed in the frequency property thereof to create one or more second audio files without the need of opening the first audio files. In this manner, a plurality of audio files may be easily and quickly modified at one time via the audio frequency adjusting section to shorten the time needed to optimize the tone quality of the audio files.

Abstract: A headphone for sound-source compensation and sound-image positioning and recovery is provided, including a left speaker device for playing to a left ear of a user left channel sound and right channel sound originating from at least a sound signal, and a right speaker device for playing to a right ear of the user left channel sound and right channel sound originating from the sound signal. A user wearing the headphone of the invention perceives stereo sound field and sound image positioning seemingly provided by a loudspeaker.

Abstract: A stereo sound image forward headphone is provided. The stereo sound image forward headphone utilizes a speaker provided on the ear hanger, which is spaced apart from a user's ear by a distance, such that sound from the speaker is on the front side of the user's ear. The stereo sound image forward headphone not only creates a natural impression of sound heard from various directions as in natural hearing, but also protects the user's ear from hearing loss which might otherwise result from long use of a headphone.

Abstract: A surround sound headphone has a plurality of sound-producing planes provided in each of the earpieces of the headphone, and at least one diaphragm arranged on each of the sound-producing planes for producing sounds in directions toward a user's ear, such that the sounds produced by the diaphragms converge at a user's ears, enabling the user to experience a stereo and surround sound effect.

Abstract: A sound effect processing system applied to a computer includes a sound quality processing unit provided on the computer for processing and modifying sound quality as a signal frequency characteristic of sounds being input to or output from the computer, and a hardware sound quality adjustment control interface, via which a user may directly control the sound effect processing system to adjust sound signal frequencies and improve the sound quality without the need of using any software or driver.

Abstract: In a headphone providing tone adjusting function, a tone processing unit is utilized to process and modify the tone of a sound signal frequency characteristic, and the sound with processed tone is played via at least one play unit. The headphone further includes a tone adjustment and control unit, with which a user may adjust and control the tone processing unit to achieve the purpose of improving the tone of a received sound directly at the headphone.

Abstract: The present invention discloses an optical disk selecting apparatus, which includes a support rack and a shaft, and the shaft is transversally disposed and supported by the support rack for serially moving optical disks so as to achieve the effect of selecting an optical disk quickly.