Methods, systems, apparatus, and articles of manufacture to perform time alignment for watermarks

At least one non-transitory computer readable storage medium comprising instructions, that, when executed, cause a computing system to:

• adjust a power value of an element of a template based on respective average magnitudes and respective tonality ratios corresponding to a plurality of frequency representations of a media signal, the media signal to be encoded with at least one watermark, the element corresponding to one of the plurality of frequency representations;
• compute an alignment of the template to the media signal based on respective power values of elements of the template, the template corresponding to a type of the at least one watermark;
• and
• encode the media signal with the at least one watermark according to the alignment.

A method for performing time alignment for watermarks, the method comprising:

• adjusting, by one or more processors, a power value of an element of a template based on respective average magnitudes and respective tonality ratios corresponding to a plurality of frequency representations of a media signal, the media signal to be encoded with at least one watermark, the element corresponding to one of the plurality of frequency representations;
• computing, by the one or more processors, an alignment of the template to the media signal based on respective power values of elements of the template, the template corresponding to a type of the at least one watermark;
• and
• encoding the media signal with the at least one watermark according to the alignment.