A method for automatically generating an audio signal, the method comprising receiving a source audio signal analyzing the source audio signal to identify a musical parameter characteristic thereof obtaining a supplemental audio signal based on the identified musical parameter characteristic and combining the source audio signal and the supplemental audio signal to form an extended audio signal.

One embodiment provides a system, method, and device for capturing inaudible tones from music. A song is received. Inaudible tones are detected in the song. Information associated with the inaudible tones is extracted from the song. The information associated with the inaudible tones is communicated to a user.

A method comprises providing an audio file comprising two or more discrete tracks; separating the two or more discrete tracks; setting a limit on an amount at least one of the two or more discrete tracks may be altered; and outputting the separated and limited discrete tracks as a file for use by an end user.

One embodiment provides a system, method, and device for communicating inaudible tones. An audio file is received. One or more inaudible tones are embedded in the audio file. The information is associated with the inaudible tones. The audio file is distributed with the embedded one or more inaudible tones.

A live distribution device includes an obtaining circuit, a data processing circuit, and a distribution circuit. The obtaining circuit is configured to obtain a piece of music and/or a user reaction to the piece of music. The user reaction is obtained from a viewing user, among a plurality of users, who is viewing a performance. The data processing circuit is configured to generate processed data based on the piece of music and/or the user reaction obtained by the obtaining circuit. The processed data indicates how the performance is viewed by the viewing user. The distribution circuit is configured to distribute the generated processed data to a terminal device of a non-viewing user, among the plurality of users, who is not viewing the performance.

One embodiment provides a system, method, and device for capturing inaudible tones from music. A song is received. Inaudible tones are detected in the song. Information associated with the inaudible tones is extracted from the song. The information associated with the inaudible tones is communicated to a user.

One embodiment provides a system, method, and device for utilizing inaudible tones for music. A song is initiated with enhanced features. A determination is made whether inaudible tones including information or data are associated with a portion of the song. The associated inaudible tone is played. Playback of the song is continued.

A method comprises providing an audio file comprising two or more discrete tracks; separating the two or more discrete tracks; setting a limit on an amount at least one of the two or more discrete tracks may be altered; and outputting the separated and limited discrete tracks as a file for use by an end user.

A method comprises providing an audio file comprising two or more discrete tracks; separating the two or more discrete tracks; setting a limit on an amount at least one of the two or more discrete tracks may be altered; and outputting the separated and limited discrete tracks as a file for use by an end user.

A transmission apparatus includes a first transmission unit that transmits sound data to a first sound channel in a transmission path, and a second transmission unit that transmits meta data related to the sound data to a second sound channel in the transmission path while ensuring synchronization with the sound data.