Clean Audio for TV broadcast: An Object-Based Approach for Hearing-Impaired Viewers - April 2015
Audibility of a CD-Standard A/DA/A Loop Inserted into High-Resolution Audio Playback - September 2007
Sound Board: Food for Thought, Aesthetics in Orchestra Recording - April 2015
Coherent Demodulation of DSSC without Pilot Tone Using the Amplitude-Locked Loop
All-digital transmission systems require clock recovery before decoding can commence. Audio examples include compact disks (CDs), DAT, NICAM stereo sound, and all other M-ary systems. The equivalent problem in nondigital communications is the recovery of a phase-coherent carrier in the presence of noise and signal amplitude variation. The fundamental problem of recovering the carrier from a double-sideband-suppressed carrier (DSSC) signal is investigated. Using a novel circuit technique called the amplitude-locked loop (ALL) to replace the hard limiter, coherent carrier recovery is demonstrated down to carrier-to-noise ratios of 0 dB and lower. The implications for improved digital clock recovery circuitry are equally as important.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.