An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.

Method and an apparatus for processing an audio signal

An apparatus for processing an audio signal and method thereof are disclosed. The preset invention includes a signal receiving unit a plurality of preset informations and preset attribute information; a display unit displaying a plurality of preset metadatas; a preset mode input unit being inputted a select signal selecting one preset metadata; a preset mode select unit selecting the preset metadata and a preset information based on the select signal; a static preset mode receiving unit receiving the preset information and the preset metadata corresponding all data regions of the downmix signal based on the preset attribute information; a dynamic preset mode receiving unit receiving the preset information and the preset metadata corresponding single data region of the downmix signal based on the preset attribute information; and a rendering unit controlling the object by applying the preset information to the all data regions or the single data region of the downmix signal.

A method and an apparatus for processing an audio signal

An audio encoder for encoding an audio signal has a first coding branch, the first coding branch comprising a first converter for converting a signal from a time domain into a frequency domain Furthermore, the audio encoder has a second coding branch comprising a second time/frequency converter Additionally, a signal analyzer for analyzing the audio signal is provided The signal analyzer, on the hand, determines whether an audio portion is effective in the encoder output signal as a first encoded signal from the first encoding branch or as a second encoded signal from a second encoding branch On the other hand, the signal analyzer determines a time/frequency resolution to be applied by the converters when generating the encoded signals An output interface includes, in addition to the first encoded signal and the second encoded signal, a resolution information identifying the resolution used by the first time/frequency converter and used by the second time/frequency converter

Multi-resolution switched audio encoding/decoding scheme

The present invention describes a novel methodology for adjusting a bandwidth extension algorithm by adapting one or more of enhancing perception parameters (e.g., a signal level, a signal energy and/or a gain) of a high-band encoded signal based on the characteristics of the input signal and an encoding performance in a low band with a codec utilizing audio-band-split coding by separate encoders and decoders for each audio band. The adaptation is based on the low-band coding algorithm. It can be at least two types of such an algorithm: e.g., an algebraic code excitation linear prediction (ACELP) algorithm for a speech-like input signal and a transform algorithm of a non-speech-like input signal, such that when the ACELP coding is selected, the corresponding enhancing perception parameter is gradually tuned down and when the encoding algorithm is changed to the transform coding, the corresponding enhancing perception parameter is gradually tuned up.

Signal adaptation for higher band coding in a codec utilizing band split coding

The invention relates to methods and units for supporting a switching from a first coding scheme to an MDCT based coding scheme calculating a forward or inverse Modified Discrete Cosine Transform with a window (h(n)) of a first type for a respective coding frame, which satisfies constraints of perfect reconstruction. In order to avoid discontinuities during the switching, it is proposed that for a transient frame immediately after a switching, a sequence of windows (h0(n),h1(n),h2(n)) is provided for the forward and the inverse Modified Discrete Cosine Transforms. The windows of the window sequence are shorter than windows of the first type. The window sequence splits the spectrum of a respective first coding frame into nearly uncorrelated spectral components when used as basis for forward Modified Discrete Cosine Transforms, and the second half of the last window (h2(n)) of the sequence of windows is identical to the second half of a window of the first type.

Switching between coding schemes

A method for signal controlled switching between audio coding schemes includes receiving input audio signals, classifying a first set of the input audio signals as speech or non-speech signals, coding the speech signals using a time domain coding scheme, and coding the nonspeech signals using a transform coding scheme. A multicode coder has an audio signal input and a switch for receiving the audio signal inputs, the switch having a time domain encoder, a transform encoder, and a signal classifier for classifying the audio signals generally as speech or non-speech, the signal classifier directing speech audio signals to the time domain encoder and non-speech audio signals to the transform encoder. A multicode decoder is also provided.

Method for signal controlled switching between different audio coding schemes

The generation of streaming multimedia content using a computer (14) connected to a network (12), such as the Internet that is used to combine the individual multimedia items. At least a second computer (16) is connected to the first computer via the network and provides auxiliary data for generation of streaming multimedia content. Thus a user of the first computer can create his own multimedia streaming content.

Method to create multimedia content using several multimedia elements

Sprachdialogsystem mit einer Client-Server-Struktur und Verfahren zum Betreiben des Systems, bei dem der Dialog vorzugsweise unter Nutzung eines VoiceXML-Browsers erfolgt. Aufgabe ist es, eine Losung zu schaffen, welche die Berucksichtigung emotionaler Zustande der Nutzer entsprechender Dialogsysteme ermoglicht. Die Losung soll vorzugsweise unter Nutzung bereits existierender Voice-Browser, umgesetzt werden konnen. Zur Losung der Aufgabe ist mindestens einer auf dem Applikationsserver gehaltenen, im Sprachdialog nutzbaren Anwendung ein Emotionserkenner-Modul fur eine prosodische Klassifizierung der Spracheingaben des Benutzers zugeordnet. Die betreffende Anwendung umfasst eine Steuerlogik, durch welche ihre Response auf eine Spracheingabe sowohl in Abhangigkeit des mittels der semantischen Sprachanalyse gewonnenen Steuerkommandos als auch eines von dem Emotionserkenner-Modul erhaltenen, den emotionalen Zustand des Nutzers reprasentierenden Wertes gesteuert wird. Dazu werden die Spracheingaben des Nutzers wahrend ihrer semantischen Analyse durch den Client aufgezeichnet und uber den Applikationsserver als Audiodatenstrom an das Emotionserkenner-Modul ubertragen.

Speech dialogue system and method for running it

The inventive method by means of the use of Java technology makes the multimedia content on any Java-enabled device available. Decoding the compressed multimedia content takes on a Java applet that is automatically getartet from a web browser. Compressing the data using encoding methods that require only a low complexity to encode the data. The user always has the latest software version available, since the actual players, that is the applet is always transferred. Therefore, the user does not need any hardware or software installations to perform, if he only has a compatible Java-enabled browser. For a low-threshold access to multimedia content is granted and allows. There are shown the audio content 24, the video content 25, the images and / or graphics 26, text information 27 and the URLs (links) 28. Each of these specific content, information, etc. Performing box 24 to 28 is a special encoder downstream 29 to 33, the a multiplexer is arranged downstream 34, which serves for dividing the multimedia content into individual content segments. At the output of the multiplexer 34, the compressed multimedia data appear 35, wherein all its contents are multiplexed sequentially, one record per section; 34 also control information 36 are formed at the output of the multiplexer of the individual multimedia elements, namely one record per section. The control information 36 contain information about the timing, duration and size of the individual multimedia elements.

Method for platform independent streaming of multimedia content for IP based networks

The method involves quasi-continuous transfer so multimedia contents can be presented during transmission. Decoding of compressed multimedia contents takes place with the aid of a Java applet that is automatically started by a web browser. Multimedia elements can be flexibly combined and configuration takes place via applet tag parameters. Automatic adaptation and selection of the coding method takes place by estimating the present bit rate. The method involves quasi-continuous transfer of multimedia contents so that contents can be presented during transmission without having already been fully downloaded. Decoding of compressed multimedia contents takes place with the aid of a Java applet that is automatically started by a web browser. Multimedia elements (24-28) can be flexibly combined and configuration takes place via applet tag parameters. Automatic adaptation and selection of the coding method takes place by estimating the present bit rate.

Platform-independent streaming of multimedia contents for IP-based networks involves decoding compressed multimedia contents with Java applet automatically started by web browser

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Ralf Kirchherr

Author Tools

Chat about Author