A method for synchronously accessing audio data and an audio playback system using the same are provided. The method comprises: providing a first device and a second device; providing an audio common memory in the second device; transmitting an audio data from the first device to the second device when the second device performs an audio playback; writing the audio common memory by the first device and reading the audio common memory by the second device when the first device transmits the audio data to the second device; and performing an interpolation operation by the second device when a difference between a read address value of the second device and a write address value of the first device is different from a predetermined difference.

A method and apparatus of a device that builds a target using a plurality of processing units is described. In an exemplary embodiment, the device receives an input audio track having a first duration, the input audio track having a plurality of points. The device further generates a transition matrix of the input audio track, wherein the transition matrix indicates a similarity metric between different pairs of the plurality of points. In addition, the device determines a set of jump points using the different pairs of the plurality of points. The device additionally generates the rearranged audio track using the set of jump points, wherein the rearranged audio track has second duration and the second duration is different than the first duration.

A system for communicating media is disclosed. Such a system may include, for example, a media broken into a plurality of independent segment files that may represent sequential portions of the media. One of the segment files can be encoded to have a format that is different than the encoded format of another one of the segment files. The formats may be chosen to allow outputting of information in the segments at different rates. A list may include network addresses for the segment files, and a content delivery system may be deployed to distribute media content to remotely located requesting devices by sending the segment files in response to requests for the segment files.

An electronic device that includes an external storage medium connection unit to which an external storage medium is connected; a detection unit that detects whether or not demonstration data is stored in the external storage medium connected to the external storage medium connection unit; and an operation mode control unit that causes the device to operate in a demonstration mode in a case where the demonstration data is stored in the external storage medium connected to the external storage medium connection unit, and causes the device to operate in a normal mode in a case where the external storage medium is not connected to the external storage medium connection unit and no demonstration data is stored in the external storage medium connected to the external storage medium connection unit.

An electronic device that includes an external storage medium connection unit to which an external storage medium is connected; a detection unit that detects whether or not demonstration data is stored in the external storage medium connected to the external storage medium connection unit; and an operation mode control unit that causes the device to operate in a demonstration mode in a case where the demonstration data is stored in the external storage medium connected to the external storage medium connection unit, and causes the device to operate in a normal mode in a case where the external storage medium is not connected to the external storage medium connection unit and no demonstration data is stored in the external storage medium connected to the external storage medium connection unit.

A system for communicating media is disclosed. Such a system may include, for example, a media broken into a plurality of independent segment files that may represent sequential portions of the media. One of the segment files can be encoded to have a format that is different than the encoded format of another one of the segment files. The formats may be chosen to allow outputting of information in the segments at different rates. A list may include network addresses for the segment files, and a content delivery system may be deployed to distribute media content to remotely located requesting devices by sending the segment files in response to requests for the segment files.

An electronic device and a processing method for instantly editing multiple tracks are provided by the present invention, where the electronic device can instantly perform recording for the musical instrument and independent audio mixing. The electronic device can be connected to a first musical instrument and a second musical instrument, and records first audio data and second audio data. Oscillograms corresponding to the first and the second audio data are drawn on a touch screen of the electronic device, and multiple control keys are provided in an editing interface. The electronic device can randomly set a selected area in the oscillogram, and perform relevant audio data adjustment on the selected area. The present invention can be used in a portable musical instrument. A musical performer can perform recording and editing at any time and any place to create a good creation.

An electronic device that includes an external storage medium connection unit to which an external storage medium is connected; a detection unit that detects whether or not demonstration data is stored in the external storage medium connected to the external storage medium connection unit; and an operation mode control unit that causes the device to operate in a demonstration mode in a case where the demonstration data is stored in the external storage medium connected to the external storage medium connection unit, and causes the device to operate in a normal mode in a case where the external storage medium is not connected to the external storage medium connection unit and no demonstration data is stored in the external storage medium connected to the external storage medium connection unit.

An electronic device that includes an external storage medium connection unit to which an external storage medium is connected; a detection unit that detects whether or not demonstration data is stored in the external storage medium connected to the external storage medium connection unit; and an operation mode control unit that causes the device to operate in a demonstration mode in a case where the demonstration data is stored in the external storage medium connected to the external storage medium connection unit, and causes the device to operate in a normal mode in a case where the external storage medium is not connected to the external storage medium connection unit and no demonstration data is stored in the external storage medium connected to the external storage medium connection unit.

A method for synchronously accessing audio data and an audio playback system using the same are provided. The method comprises: providing a first device and a second device; providing an audio common memory in the second device; transmitting an audio data from the first device to the second device when the second device performs an audio playback; writing the audio common memory by the first device and reading the audio common memory by the second device when the first device transmits the audio data to the second device; and performing an interpolation operation by the second device when a difference between a read address value of the second device and a write address value of the first device is different from a predetermined difference.