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SST - Spread Spectrum Technologies. American High Fidelity
Spread Spectrum Technologies, founded by legendary designer and engineer James Bongiorno, has always embodied the essence of high-end audio: Forward-thinking, state-of-the-art audio components that reproduce music with breathtaking truth and emotion.
Spread-Spectrum Watermarking of Audio Signals - …
https://www.microsoft.com/en-us/research/publication/spread-spectrum-watermarking-of-audio-signals/
Spread-Spectrum Watermarking of Audio Signals. Watermarking has become a technology of choice for a broad range of multimedia copyright protection applications. Watermarks have also been used to embed format-independent metadata in audio/video signals in a way that is robust to common editing. In this paper, we present several novel mechanisms ...
Spread-spectrum watermarking of audio signals - …
https://www.microsoft.com/en-us/research/wp-content/uploads/2016/02/KirovskiMalvarTSPApr03.pdf
KIROVSKI AND MALVAR: SPREAD-SPECTRUM WATERMARKING OF AUDIO SIGNALS 1023 Computation of from can be made relatively accurate as follows. First, and are computed as means of the audible part of the signal selected by positive and negative chips respectively.
Spread-spectrum method identifies audio path - EDN
https://www.edn.com/spread-spectrum-method-identifies-audio-path/
An unusual method of audio spread spectrum can identify the audio path that's currently in use through a consumer-electronic device. The design in Figure 1a uses an injected audio spread-spectrum tag signal because a listener does not notice the low-level noise in the audio bandpass, whereas the listener would hear a steady-tone tag signal.
Digital Spread Spectrum Audio Kit | PKI Electronic ...
http://www.pki-electronic.com/products/audio-surveillance-equipment/digital-spread-spectrum-audio-kit/
This Digital Spread Spectrum Audio Kit is the only answer to tasks where highest levels of security are required for monitoring purposes. The digitally scrambled signal is nearly impossible to decode and furthermore it will be transmitted on special frequencies spreaded over a wide frequency band.
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