Abstract: A method to author music. The method includes generating, based on a collection of media clips stored on a device, an audio component for an audio/video (A/V) presentation, determining a plurality of locations within the audio component where a beat, onset, segment boundary, or stinger occurs within the audio component, selecting a particular location in the plurality of locations as a transition location, generating, based the collection of media clips and the transition location within the audio component, a video component for the A/V presentation, and generating the A/V presentation based on the audio component and the video component.

Abstract: Some embodiments provide an audio authoring method that provide a set authoring tools for specifying rules for combining sections of a first song to generate a second song. The set of authoring tools allow an array of cells to be arranged in first and second directions, and allow each body section to be associated with one set of cells that are arranged in the first direction and another set of cells that are arranged in the second direction. At each cell that belongs to one set of cells arranged in the first direction for a first body section and another set of cells arranged in the second direction for a second body section, the set of tools also allow the user to specify whether the second body section is allowed to follow the first body section.

Abstract: Some embodiments provide an audio authoring method that provide a set authoring tools for specifying rules for combining sections of a first song to generate a second song. The set of authoring tools allow an array of cells to be arranged in first and second directions, and allow each body section to be associated with one set of cells that are arranged in the first direction and another set of cells that are arranged in the second direction. At each cell that belongs to one set of cells arranged in the first direction for a first body section and another set of cells arranged in the second direction for a second body section, the set of tools also allow the user to specify whether the second body section is allowed to follow the first body section. Some embodiments provide a method for compositing audio.

Abstract: A method to author music. The method includes generating, based on a collection of media clips stored on a device, an audio component for an audio/video (A/V) presentation, determining a plurality of locations within the audio component where a beat, onset, segment boundary, or stinger occurs within the audio component, selecting a particular location in the plurality of locations as a transition location, generating, based the collection of media clips and the transition location within the audio component, a video component for the A/V presentation, and generating the A/V presentation based on the audio component and the video component.

Abstract: Some embodiments provide an application that can automatically generate a movie from a collection of media clips stored on a device or accessible by the device. The movie creation process of some embodiments uses novel video and audio compositors that dynamically composite video and audio components of the movie. The video compositors process explores different combination of media clips and media-clip arrangements to produce an interesting video presentation. The audio compositor receives the duration of the video presentation, and dynamically generates a song for the video presentation based on this duration. Another novel interaction is that in some embodiments the audio compositor provides the starting location of its last segment to the video compositor so that the video compositor can align the start of the last video segment with this ending segment. In some embodiments, the video and audio compositors also synchronize fade-out effects that they apply to their respective presentations with each other.

Abstract: Some embodiments provide an application that can automatically generate a movie from a collection of media clips stored on a device or accessible by the device. The movie creation process of some embodiments uses novel video and audio compositors that dynamically composite video and audio components of the movie. The video compositors process explores different combination of media clips and media-clip arrangements to produce an interesting video presentation. The audio compositor receives the duration of the video presentation, and dynamically generates a song for the video presentation based on this duration. Another novel interaction is that in some embodiments the audio compositor provides the starting location of its last segment to the video compositor so that the video compositor can align the start of the last video segment with this ending segment. In some embodiments, the video and audio compositors also synchronize fade-out effects that they apply to their respective presentations with each other.

Abstract: Some embodiments provide an audio authoring method that provide a set authoring tools for specifying rules for combining sections of a first song to generate a second song. The set of authoring tools allow an array of cells to be arranged in first and second directions, and allow each body section to be associated with one set of cells that are arranged in the first direction and another set of cells that are arranged in the second direction. At each cell that belongs to one set of cells arranged in the first direction for a first body section and another set of cells arranged in the second direction for a second body section, the set of tools also allow the user to specify whether the second body section is allowed to follow the first body section. Some embodiments provide a method for compositing audio.

Abstract: Some embodiments provide an application that can automatically generate a movie from a collection of media clips stored on a device or accessible by the device. The movie creation process of some embodiments uses novel video and audio compositors that dynamically composite video and audio components of the movie. The video compositors process explores different combination of media clips and media-clip arrangements to produce an interesting video presentation. The audio compositor receives the duration of the video presentation, and dynamically generates a song for the video presentation based on this duration. Another novel interaction is that in some embodiments the audio compositor provides the starting location of its last segment to the video compositor so that the video compositor can align the start of the last video segment with this ending segment. In some embodiments, the video and audio compositors also synchronize fade-out effects that they apply to their respective presentations with each other.