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Transform coding of audio signals using perceptual noise ...
https://ieeexplore.ieee.org/document/608/
A 4-b/sample transform coder is designed using a psychoacoustically derived noise-making threshold that is based on the short-term spectrum of the signal. The coder has been tested in a formal subjective test involving a wide selection of monophonic audio inputs. The signals used in the test were of 15-kHz bandwidth, sampled at 32 kHz. The bit rate of the resulting coder was …
CiteSeerX — Transform coding of audio signal using ...
https://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.422.1835
Abstract-A 4 bit/sample transform coder is designed using a psychoacoustically derived noise masking threshold based on the shortterm input spectrum of the signal. The coder has been tested in a formal subjective test involving a wide selection of monophonic audio inputs. The signals used in the test were of 15 kHz bandwidth, sampled at 32 kHz.
US20080097749A1 - Dual-transform coding of audio …
https://patents.google.com/patent/US20080097749A1/en
Methods, devices, and systems for coding and decoding audio are disclosed. At least two transforms are applied on an audio signal, each with different transform periods for better resolutions at both low and high frequencies. The transform coefficients are selected and combined such that the data rate remains similar as a single transform.
EP1914724A2 - Dual-transform coding of audio signals ...
https://patents.google.com/patent/EP1914724A2/en
EP1914724A2 EP07019185A EP07019185A EP1914724A2 EP 1914724 A2 EP1914724 A2 EP 1914724A2 EP 07019185 A EP07019185 A EP 07019185A EP 07019185 A EP07019185 A EP ...
C URRENT storage requirements for monophonic dig-
https://www.ee.columbia.edu/~dpwe/papers/Johns88-audiocoding.pdf
Transform Coding of Audio Signals Using Perceptual Noise Criteria JAMES D. JOHNSTON Abstract-A 4 bit/sample transform coder is designed using a psy- choacoustically derived noise masking threshold based on the short- term input spectrum …
Compression of Audio Using Transform Coding
http://www.jocm.us/uploadfile/2019/0308/20190308035942448.pdf
audio compression is depend on removing signal redundancy while preserving the clearness of the signal [5]. The most popular audio coders are depending on using one of the two techniques (sub-band coding and transform coding). Transform coding uses a mathematical transformation like Discrete Cosine
CiteSeerX — Lossless Transform Coding of Audio Signals
https://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.36.3339
Transform coding, however, hasn't been investigated so far, although it seems to be more adapted to the harmonic structure of most audio signals. In this paper we present first results on lossless transform coding of CD-quality audio data. One main aspect lies on a suitable quantization method to obtain perfect reconstruction.
AES E-Library » Lossless Transform Coding of Audio …
https://www.aes.org/e-lib/online/browse.cfm?elib=7365
Recent papers have proposed linear prediction as a useful method for lossless audio coding. Transform coding, however, has not been investigated so far, although it seems to be more adapted to the harmonic structure of most audio signals. The paper presents the first results on lossless transform coding of CD-quality audio data. One main aspect lies in the suitable …
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