1. A method of soft error decoding of steganographic data embedded in a media signal by imperceptibly adjusting data values in the media signal to create a steganographically embedded signal, the method comprising:
receiving data values from the media signal that have been adjusted to embed the steganographic data;
making determinations of changes made to the data values to embed the steganographic data;
weighting the determinations based on confidence that the determinations are correct to produce weighted determinations;
using the weighted determinations as input to message decoding process to compute an error corrected message from the media signal.
2. The method of claim 1 wherein the data values comprise pixel values.
3. The method of claim 1 wherein the data values comprise values computed from a group of pixels.
4. The method of claim 1 wherein the determinations interpret which data values have been increased and which data values have been decreased to embed the steganographic data.
5. The method of claim 1 wherein the determinations are based on statistics of values in the media signal.
6. A method of error correction decoding of steganographic data embedded in a media signal by imperceptibly adjusting data values in the media signal to create a steganographically embedded signal, the method comprising:
receiving data values from the media signal that have been adjusted to embed the steganographic data;
processing the data values to extract message values of the steganographic data;
weighting the message values based on statistical confidence that the message values are correct to produce weighted message values;
using the weighted message values as input to a message decoding process to compute an error corrected message from the media signal.
7. The method of claim 6 wherein the weighted message values are input to error correcting polynomial.
8. The method of claim 6 wherein the message values comprise binary bit values.
9. The method of claim 6 wherein the processing includes performing statistical detection on the data values.
10. The method of claim 6 wherein the adjusted data values have been adjusted with positive and negative changes and the positive and negative changes correspond to different data states of the steganographic data.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of providing an audio signal to an audio output device, comprising:
receiving an audio signal;
providing the audio signal simultaneously to audio output devices in first and second physical environments so as to appear not to emanate from an individual depicted on a display in either said first environment or said second environment.
2. The method of claim 1, wherein said step of providing the audio signal comprises providing the audio signal as an out-of-phase stereo signal.
3. The method of claim 1, wherein said step of receiving an audio signal comprises receiving an audio signal from a microphone.
4. The method of claim 1, wherein said step of receiving an audio signal comprises receiving an audio signal from recorded media.
5. The method of claim 1, wherein the first and second physical environments are rooms.
6. The method of claim 1, wherein each of said physical environments comprises a plurality of audio output devices, and at least one video display.
7. The method of claim 6, wherein said at least one video display has portrayed thereon an image of an individual, the voice of the individual being output by said audio output devices to cause the voice to appear to a person in the physical environment to be associated with a location of the individual on said at least one video display.
8. The method of claim 1, wherein said step of providing comprises providing said audio signal to processors associated with each of said physical environments, and processing said audio signal by said processors to obtain an out-of-phase stereo signal.
9. A method of providing an audio signal, comprising the steps of:
receiving a first audio signal from a first source comprising a microphone in a first environment;
receiving a second audio signal from a second source;
providing the first audio signal to an audio output device in the second environment so as to appear to emanate from an individual depicted on a display in the second environment;
providing the second audio signal to an audio output device in the second environment so as to appear not to emanate from an individual depicted on a display in the second environment.
10. The method of claim 9, wherein said step of providing the second audio signal to an audio output device in the second environment comprises providing the second audio signal as an out-of-phase stereo signal.
11. The method of claim 9, wherein said step of providing the second audio signal to an audio output device in the second environment comprises providing the second audio signal so as to appear to emanate from an icon depicted on a display in the second environment.
12. The method of claim 9, wherein the second source comprises recorded media.
13. The method of claim 9, wherein the second source comprises a microphone not located in the first environment.
14. The method of claim 12, wherein said second audio signal comprises an out-of-phase stereo signal when received.
15. The method of claim 12, further comprising the step of processing said second audio signal to obtain an out-of-phase stereo signal.
16. A system for providing an audio signal to an audio output device, comprising:
a first audio signal source;
a second audio signal source comprising a microphone in a first environment;
first processor for receiving a first audio signal from the first source, and for providing the first audio signal to at least one audio output device in said first environment so as to provide audio output that does not appear to emanate from substantially the same location as an image of an individual on a display in said first environment;
second processor for receiving the first audio signal and for providing the first audio signal to at least one audio output device in the second environment in a manner to provide an audio output that does not appear to emanate from substantially the same location as an image of an individual on a display in said second environment, and for receiving the second audio signal and for providing the second audio signal, to at least one audio output device in a second environment in a manner to provide an audio output that does not appear to emanate from substantially the same location as an image of an individual on a display in said second environment.
17. The system of claim 16, wherein said first audio signal source comprises a microphone.
18. The system of claim 16, wherein said first audio signal source comprises a source of stored media.
19. The system of claim 18, wherein said source of stored media comprises a computer.
20. The system of claim 16, further comprising a third audio source comprising a microphone in said second environment, said second processor being further for receiving and transmitting a third audio signal from said third source, and said first processor being further for receiving the third audio signal from said second processor and providing the third audio signal, in a manner other than out-of-phase stereo, to at least one audio output device in the first environment.