Patent  US 8,374,712

Gapless audio playback

Abstract

Various embodiments related to the performance of gapless audio playback of two or more audio tracks are provided. One disclosed embodiment provides a method of performing gapless audio playback comprising rendering a plurality of samples of a current audio track via a current filter graph, and notifying an end-of-stream soon event via a current filter graph.   Upon detecting the end-of-stream soon event...

Patent   US 8,060,637

Playback apparatus and playback control method

Abstract

In a playback apparatus adapted to receive stream data transmitted from a server and play back the received stream data, attribute information is sequentially received from the server and stored in an attribute information buffer, and, on the basis of the attribute information stored in the attribute information buffer, a request is issued to the server to transmit stream data corresponding to the attribute information. The stream data received from the server is sequentially stored in a first-in-first-out stream data buffer...

Patent   US 8,190,441

Playback of compressed media files without quantization gaps

Abstract

Playback by a decoder of a lossy compressed digital media file without quantization gaps, wherein the digital media file is formed of a number of audio samples grouped into a corresponding number of audio frames. As a method, the invention is carried out by identifying an encoder used to compress the digital media file; obtaining an encoder delay value for the identified encoder; obtaining a decoder delay value for the decoder; determining a audio sample count corresponding to a last valid audio sample...

Patent   US 9,111,524

Seamless playback of successive multimedia files

Abstract

The present document relates to methods and systems for encoding and decoding multimedia files. In particular, the present document relates to methods and systems for encoding and decoding a plurality of audio tracks for seamless playback of the plurality of audio tracks. A method for encoding an audio signal comprising a first and a directly following second audio track for seamless and individual playback of the first and second audio tracks is described. The first and second audio tracks comprise a first and second plurality of audio frames, respectively. The method comprises jointly encoding the audio signal using a frame based audio encoder, thereby yielding a continuous sequence of encoded frames; extracting a first plurality of encoded frames...

Patent   US 9,282,403

User perceived gapless playback

Abstract

A computing system for selecting and providing content items to a device. The device is configured to output a first content item to a user and to detect events related to the output of the first content item and, in response, to provide a notification to a cloud service related to the event. The device is further configured to receive at least a second content item from the cloud services and to buffer the second content item while outputting the first content item.

Patent   US 9,124,235

Media content management and presentation systems and methods

Abstract

Exemplary media content management and presentation systems and methods are described herein. An exemplary method includes a media content presentation system linking together multiple media content instances, playing back or managing a playlist that includes the linked media content instances, and processing the linked media content instances as a block of linked media content instances within the playing back or managing of the playlist. Another exemplary method includes a media content presentation system playing back a media content instance for experiencing by a user, presenting a playback user interface in conjunction with the playing back of the media content instance, and providing, within the playback user interface, one or more media management tools configured for use by the user to manage the media content instance...

Patent Application   JP2005373783A

Music player, reproduction control method, and program

Abstract

PROBLEM TO BE SOLVED: To provide a music player capable of properly and continuously reproducing music data converted from music sources having no interval.

SOLUTION: To determine the continuity of adjacent music data, a control unit 10 compares the section average volume value of the tail part of music data to be reproduced first with the section average volume value of the head part of music data to be reproduced next. When it is determined that the section average volume values are equal to each other, and so there is continuity between the music data, the control unit 10 deletes a silent part added to the tail of the music data to be reproduced first or a silent part...

Patent   US 8,538,565

Music playing apparatus, music playing method, recording medium storing music playing program, and integrated circuit that implement gapless play

Abstract

A music playing apparatus includes: a sound and silence determining unit determining whether or not each frame included in first and second output PCM data is a sound frame including a sample having an output level not lower than a predetermined threshold; a connection point extracting unit extracting a candidate connection point being a sample having a largest variation in a lean of a PCM waveform, from each of the determined sound frames; an end detecting unit detecting candidate connection points included in a last sound frame of the first output PCM data and an initial sound frame of the second output PCM data, respectively, as a first connection point and a second connection point; and a tune continuously-output unit connecting the first output PCM data to the second output PCM data at the first and the second connection points, and playing the connected data.