System and method for deploying filters for processing signals
A system, method and computer-readable medium are disclosed for using filter signal processing. The system conveys filter information for a spectrum for a signal at a receiver. The system comprises a module configured to transmit information regarding a first filter, a module configured to transmit information regarding a second filter and a module configured to transmit a mask to indicate switching between the first filter and the second filter across the spectrum. The filters may be temporal noise shaping (TNS) filters.
1. A method of conveying filter information for a spectrum of an audio signal to a receiver, comprising:
transmitting information regarding a first filter;
transmitting information regarding a second filter; and
transmitting data to indicate switching between the first filter and the second filter across the spectrum, wherein a perception of the audio signal at the receiver is improved.
2. The method of claim 1 , further comprising representing the spectrum as a plurality of bands.
3. The method of claim 2 , wherein the plurality of bands are scale factor bands.
4. The method of claim 2 , wherein the data includes one bit per band to indicate the switching.
5. The method of claim 1 , wherein the data is a mask of one bit per scaled factor band.
6. A system for conveying filter information for a spectrum for an audio signal to a receiver, the system comprising:
a module configured to transmit information regarding a first filter;
a module configured to transmit information regarding a second filter; and
a module configured to transmit data to indicate switching between the first filter and the second filter across the spectrum, wherein a perception of the audio signal at the receiver is improved.
7. The system of claim 6 further comprising a module configured to represent the spectrum as a plurality band.
8. The system of claim 7 , wherein the plurality of bands are scale factor bands.
9. The system of claim 6 , wherein the data includes one bit per band to indicate the switching.
10. The system of claim 6 , wherein the data is a mask of one bit per scaled factor band.
11. The computer readable medium storing instructions for controlling a computing device to convey filter information for a spectrum of an audio signal to a receiver, the instructions comprising:
transmitting information regarding a first filter;
transmitting information regarding a second filter; and
transmitting data to indicate switching between the first filter and the second filter across the spectrum, wherein a perception of the audio signal at the receiver is improved.
12. A computer readable medium of claim 11 , wherein the instructions further comprise representing the spectrum as a plurality of bands.
13. A computer readable medium of claim 12 , wherein a plurality of bands are scale factor bands.
14. A computer readable medium of claim 12 , wherein the data includes one bit per band to indicate the switching.
15. The computer readable medium of claim 11 , wherein the data is a mask of one bit per scaled factor band.