The use of perceptually based (lossy) audio codecs, like MPEG 1 - layer 3 (`mp3'), has become very popular in the last few years. However, at very high compression rates the perceptual quality of the signal is degraded, which is mainly exhibited as a loss of high frequencies. We propose an efficient algorithm for extending the bandwidth of an audio signal, with the goal to create a more natural sound. This is done by adding an extra octave at the high frequency part of the spectrum . The algorithm uses a non-linearity to generate the extended octave, and can be applied to music as well as speech . This also enables application to fixed or mobile communication systems
Speech generation and enhancement have seen recent breakthroughs in quality thanks to deep learning....
Companding, as a variant of audio level compression, can help reduce the dynamic range of an audio s...
Bandwidth extension (BWE) is an important parametric technique applied by modern audio coders in ord...
The use of perceptually based (lossy) audio codecs, like MPEG 1 - layer 3 (`mp3'), has become very p...
The use of perceptually based (lossy) audio codecs, like MPEG 1 - layer 3 (`mp3'), has become very p...
Today s efficient audio codecs for low bitrate application scenarios often rely on parametric coding...
Bandwidth extenstion methods are required in systems that playback bandlimited signals (e.g. telepho...
Bandwidth extenstion methods are required in systems that playback bandlimited signals (e.g. telepho...
To maintain a reasonable perceived quality and to reduce degradations, classical audio or speech sou...
To maintain a reasonable perceived quality and to reduce degradations, classical audio or speech sou...
Current telephone networks compromise bandwidth for ef-ficiency. The impairment of the audio quality...
Storage or transmission of audio signals is often subject to strict bitrate constraints. This is acc...
The high frequency components of the audio signal are often truncated during the encoding processing...
Abstract—Today’s telecommunications systems use a limited audio signal bandwidth. A typical bandwidt...
The high frequency components of the audio signal are often truncated during the encoding processing...
Speech generation and enhancement have seen recent breakthroughs in quality thanks to deep learning....
Companding, as a variant of audio level compression, can help reduce the dynamic range of an audio s...
Bandwidth extension (BWE) is an important parametric technique applied by modern audio coders in ord...
The use of perceptually based (lossy) audio codecs, like MPEG 1 - layer 3 (`mp3'), has become very p...
The use of perceptually based (lossy) audio codecs, like MPEG 1 - layer 3 (`mp3'), has become very p...
Today s efficient audio codecs for low bitrate application scenarios often rely on parametric coding...
Bandwidth extenstion methods are required in systems that playback bandlimited signals (e.g. telepho...
Bandwidth extenstion methods are required in systems that playback bandlimited signals (e.g. telepho...
To maintain a reasonable perceived quality and to reduce degradations, classical audio or speech sou...
To maintain a reasonable perceived quality and to reduce degradations, classical audio or speech sou...
Current telephone networks compromise bandwidth for ef-ficiency. The impairment of the audio quality...
Storage or transmission of audio signals is often subject to strict bitrate constraints. This is acc...
The high frequency components of the audio signal are often truncated during the encoding processing...
Abstract—Today’s telecommunications systems use a limited audio signal bandwidth. A typical bandwidt...
The high frequency components of the audio signal are often truncated during the encoding processing...
Speech generation and enhancement have seen recent breakthroughs in quality thanks to deep learning....
Companding, as a variant of audio level compression, can help reduce the dynamic range of an audio s...
Bandwidth extension (BWE) is an important parametric technique applied by modern audio coders in ord...
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