Abstract: Disclosed are techniques for audio processing handover between audio devices. In an aspect, a method of audio processing handover between audio devices comprises selecting a first audio device to be a primary audio input device and deactivating the second audio device; performing a voice processing algorithm on the first audio device; detecting that the quality of the first audio signal does not satisfy a quality threshold, and in response, activating the second audio device and measuring the quality of the second audio signal. If the quality of the second audio signal is better than the quality of the first audio signal, select the second audio device to be the primary audio input device, deactivate the first audio device, and perform the voice processing algorithm on the second audio device. Otherwise, deactivate the second audio device for some amount of time before checking again.

Abstract: A method of embedding a bit or more of watermark data in a video signal to be entropy coded, wherein the video signal may be a block with levels, wherein the method may include: obtaining the watermark data; and obtaining a value of a first watermarked level on the basis of a first level of the block by processing the value of the first watermarked level. There also is a method of detecting a watermark in a video signal, the video signal having been entropy decoded and with a block with a first watermarked level, wherein the method may include: receiving the video signal; obtaining at least one bit of watermark data wi? on the basis of the first watermarked level; and determining a tampering indicator by verifying whether the obtained watermark data wi? corresponds with watermark data wi.

Abstract: A method of embedding a watermark data in a video signal to be entropy coded, wherein the video signal comprises a block with levels and the watermark data comprises a bit, the method of embedding comprising: obtaining watermark data; obtaining a value of a first watermarked level on the basis of a first level of the block by processing the value of the first watermarked level; it is also described a method of detecting a watermark in a video signal, the video signal having been entropy decoded and comprising a block with a first watermarked level and the watermark data comprising a bit, the method of detecting comprises: receiving the video signal; obtaining watermark data wi? on the basis of the first watermarked level; determining a tampering indicator by verifying whether the obtained watermark data wi? corresponds with a watermark data wi embedded by a method of embedding watermark.