Abstract: An electronic device comprising: an internal memory which has a folder for back-up; and a first controller, wherein the first controller outputs playlists of an application to the folder for back-up of the internal memory as a playlist file when a playlist managing device is connected to the electronic device.

Abstract: To reflect information of check (selection) to a contents list correctly. A CPU 2 makes a playlist managing database that manages a playlist in a RAM 4. The CPU 2 registers information of a song that selection is received in the playlist managing database. The CPU 2 combines the song database with the playlist managing database. The CPU 2 issues SQL to the combined database and obtains a song list to which a state of addition to the playlist is reflected.

Abstract: The pulse width modulator includes a subtraction unit configured to perform subtraction between an m value digital signal and a pulse width modulation signal; a feedforward filter unit configured such that a ?? modulator to which an output signal of the subtraction unit is input and which includes integrators of a second order or higher is in cascade connection, and configured to operate with a sampling frequency FS; a product-sum computing unit configured to operate with a sampling frequency (FS/n) (n: an integer of two or more) to perform product-sum computing of an output signal of each integrator of the feedforward filter unit; and a pulse width modulation unit configured to operate with the sampling frequency (FS/n) to perform pulse width modulation of an output signal of the product-sum computing unit to output a pulse width modulation signal.

Abstract: The pulse width modulator includes a subtraction unit configured to perform subtraction between an m value digital signal and a pulse width modulation signal; a feedforward filter unit configured such that a ?? modulator to which an output signal of the subtraction unit is input and which includes integrators of a second order or higher is in cascade connection, and configured to operate with a sampling frequency FS; a product-sum computing unit configured to operate with a sampling frequency (FS/n) (n: an integer of two or more) to perform product-sum computing of an output signal of each integrator of the feedforward filter unit; and a pulse width modulation unit configured to operate with the sampling frequency (FS/n) to perform pulse width modulation of an output signal of the product-sum computing unit to output a pulse width modulation signal.

Abstract: In a smartphone that outputs PCM data and DSD data of different data format from PCM data to a USB DAC, to prevent generation of noises from the USB DAC when the smartphone accepts stopping instruction of outputting digital audio data to the USB DAC while outputting DSD data to the USB DAC. A controller 11 outputs mute data representing silence of DSD data to a USB DAC 2 when it accepts pausing instruction while outputting DSD data to the USB DAC 2.

Abstract: It is an object of the present invention to provide an audio having intended sound quality to a user even when a headphone that is different from a headphone used for generating equalizer information is used. A correcting section corrects equalizer curve stored in an equalizer curve storage section based on a correction curve that is a gain difference of a frequency characteristic between a first headphone and a second headphone when the second headphone the frequency characteristic of which is different from that of the first headphone is used so as to output the corrected equalizer curve to a reproducing section. The reproducing section executes an equalizing process based on the equalizer curve output from the correcting section.

Abstract: There is provided a ?? modulator including a loop filter for inputting an m-value digital signal into a subtractor, an n-value quantizer for inputting a first output signal to be output from the loop filter and outputting a second output signal as an n-value digital signal, and a selecting device for inputting the first output signal and the second output signal therein, feeding back the first output signal to a subtractor of the loop filter when an absolute value of the first output signal is a predetermined value or more, and feeding back the second output signal to the subtractor of the loop filter when the absolute value is less than a predetermined value. The predetermined value in the selecting device is set to be larger than a maximum value of an absolute value of a quantization value to be obtained by the n-value digital signal.

Abstract: There is provided a ?? modulator including a loop filter for inputting an m-value digital signal into a subtractor, an n-value quantizer for inputting a first output signal to be output from the loop filter and outputting a second output signal as an n-value digital signal, and a selecting device for inputting the first output signal and the second output signal therein, feeding back the first output signal to a subtractor of the loop filter when an absolute value of the first output signal is a predetermined value or more, and feeding back the second output signal to the subtractor of the loop filter when the absolute value is less than a predetermined value. The predetermined value in the selecting device is set to be larger than a maximum value of an absolute value of a quantization value to be obtained by the n-value digital signal.

Abstract: In a smartphone that outputs PCM data and DSD data of different data format from PCM data to a USB DAC, to prevent generation of noises from the USB DAC when the smartphone accepts stopping instruction of outputting digital audio data to the USB DAC while outputting DSD data to the USB DAC. A controller 11 outputs mute data representing silence of DSD data to a USB DAC 2 when it accepts pausing instruction while outputting DSD data to the USB DAC 2.

Abstract: In a music reproducing apparatus for converting audio data into audio data of different data format so as to reproduce it, gapless reproduction and cross-fade reproduction are performed in a switching manner, and generation of a noise at time of the gapless reproduction is repressed. When a reproducing section performs the gapless reproduction, a converting section performs conversion into PCM data to be reproduced latterly using a buffer used for conversion into the PCM data to be reproduced formerly. Further, when the reproducing section performs the cross-fade reproduction, the converting section generates a buffer different from the buffer used for the conversion into the PCM data to be reproduced formerly in a storage section, and performs the conversion into the PCM data to be reproduced latterly using the generated buffer.

Abstract: In a music reproducing apparatus for converting audio data into audio data of different data format so as to reproduce it, gapless reproduction and cross-fade reproduction are performed in a switching manner, and generation of a noise at time of the gapless reproduction is repressed. When a reproducing section performs the gapless reproduction, a converting section performs conversion into PCM data to be reproduced latterly using a buffer used for conversion into the PCM data to be reproduced formerly. Further, when the reproducing section performs the cross-fade reproduction, the converting section generates a buffer different from the buffer used for the conversion into the PCM data to be reproduced formerly in a storage section, and performs the conversion into the PCM data to be reproduced latterly using the generated buffer.

Abstract: It is an object of the present invention to provide an audio having intended sound quality to a user even when a headphone that is different from a headphone used for generating equalizer information is used. A correcting section corrects equalizer curve stored in an equalizer curve storage section based on a correction curve that is a gain difference of a frequency characteristic between a first headphone and a second headphone when the second headphone the frequency characteristic of which is different from that of the first headphone is used so as to output the corrected equalizer curve to a reproducing section. The reproducing section executes an equalizing process based on the equalizer curve output from the correcting section.

Abstract: A content type registration apparatus and program that obtains from a server a content list which is a list of a plurality of contents, each content having a respective index, and registers the content type for each index corresponding to a respective content in the content list.

Abstract: A container display control device comprising: a container title acquiring unit that acquires one or more container titles from a server, the one or more container titles relating to respective one or more containers in a tier immediately under a top tier container; a registration unit to which identification information is registered in advance, the identification information being for indicating that a category of a container is a first category; a category determination unit that determines, for each container in the tier immediately under the top tier container, whether or not the container title includes the identification information registered to the registration unit and indicating that the container is of the first category; and a setting unit that sets a container whose title includes the identification information as the top tier container, the identification information indicating that the container is of the first category.

Abstract: According to a preferred embodiment of the present invention, there is provided a content type registration apparatus that obtains from a server a content list which is a list of a plurality of contents and which does not contain content types, and content types of the contents and registers the content type for each index in the content list, the apparatus including: a content type storage unit that registers the content types in association with the indices; a determining unit that determines whether or not a content type of an index adjacent to a registration target index is registered in the content type storage unit; and a registering unit that registers, when the content type of the adjacent index is registered in the content type storage unit, the content type of the adjacent index in the content type storage unit as a content type of the registration target index instead of obtaining the content type of the registration target index from the server, and obtains, when the content type of the adjacent i