TH172298A - Adaptive band width extension and engine kit for the same. - Google Patents

Abstract

Edited Invention Summary 11/05/2016 A method for decoding the encoded audiovisual bit stream and generating a band width extension will have Decoding of the audiovisual bit stream to produce a decoded low-band audio signal and generate a spectrum of Activate the low band corresponding to the low frequency row. The subband area is selected from within the low frequency band using parameters. A meter which indicates the spectral envelope energy information of the decoded low-band audio signal. The high-band excitation spectrum is established for the high frequency band by reproduction of the excitation spectrum. Sub from the selected subband area to the high subband area corresponding to the high frequency band. In the use of spectrum Of the high bar stimulation that was created The amplified high band audio signal is generated using the oriented envelope. High band spectrum The amplified high band audio signal is added to the decoded low band signal to Generates an audio output signal with an extended frequency band width. -------------------------------------------------- ------------------------------- How to decode the encoded audio bit stream and generate a band width extension. Frequency.The bit stream of audio is decoded to produce a decoded low band signal and generate The spectrum of low-band excitation corresponding to the low frequency band. The subbar area is selected from within the bar. Low frequencies using parameters that indicate the energy, energy, spectral envelope of an audio signal. Decoded low bar High band excitation spectrum generated for high frequency bands by reproduction. Spectrum of subband excitation from the selected subband region in the high subband region corresponding to the high frequency band. Stretched high bar audio signal It is created using the high-spectral envelope. An amplified high bar sound signal was added to the A decoded low-band signal to produce an audio signal with a stretched frequency band.

Claims (1)

: Edited Invention Summary 11/05/2016 A method for decoding the encoded audiovisual bit stream and generating a band width extension will have Decoding of the audiovisual bit stream to produce a decoded low-band audio signal and generate a spectrum of Activate the low band corresponding to the low frequency row. The subband area is selected from within the low frequency band using parameters. A meter which indicates the spectral envelope energy information of the decoded low-band audio signal. The high-band excitation spectrum is established for the high frequency band by reproduction of the excitation spectrum. Sub from the selected subband area to the high subband area corresponding to the high frequency band. In the use of spectrum Of the high bar stimulation that was created The amplified high band audio signal is generated using the oriented envelope. High band spectrum The amplified high band audio signal is added to the decoded low band signal to Generates an audio output signal with an extended frequency band width. -------------------------------------------------- ------------------------------- How to decode the encoded audio bit stream and generate a band width extension. Frequency.The bit stream of audio is decoded to produce a decoded low band signal and generate The spectrum of low-band excitation corresponding to the low frequency band. The subbar area is selected from within the bar. Low frequencies using parameters that indicate the energy, energy, spectral envelope of an audio signal. Decoded low bar High band excitation spectrum generated for high frequency bands by reproduction. Spectrum of subband excitation from the selected subband region in the high subband region corresponding to the high frequency band. Stretched high bar audio signal It is created using the high-spectral envelope. An amplified high bar sound signal was added to the A decoded low-band signal to produce an audio signal that has an amplified frequency band. (Section one) which will appear on the advertisement page: ------ 19/04/2018 ------ (OCR) Page 1 of the number 4 pages. 1. A method for decoding the coded audiovisual bit stream and generating a band width extension. Frequency with decoder Where the methods include: decoding of the audiovisual bit stream to produce a decoded and generating audiovisual signal. The spectrum of ocular stimulation corresponding to the frequency band ฅR; Selecting a subband area from within the frequency band using one parameter indicates information. On the spectral envelope energy of the decoded audiovisual signal; Where the tag bar area: