LC83026E Overview
EN5663 CMOS IC LC83026E Digital Signal Processor for Karaoke Systems Overview The LC83026E provides the audio signal processing required in karaoke systems, including pitch shift, microphone echo, voice muting, and simple surround simulation. It is a special-purpose DSP that implements karaoke processing with the addition of a single external 256-Kb DRAM. The LC83026E includes on-chip A/D and D/A converters and...
LC83026E Key Features
- Application features
- Pitch shift The LC83026E supports pitch shifting of ±15 quarter tone steps, or ±1 octave in scale tone units as specifie
- Microphone echo The LC83026E can apply echo processing to the input signal from the microphone A/D converter. The echo c
- Voice muting The LC83026E provides attenuation of monaural ponents in the music signal. This allows CDs that include voc
- Simple surround The LC83026E implements a simple surround simulation function by adding delay ponents to the music signa
- coefficients, but the algorithm is fixed
- Versatile input mixing The LC83026E supports hybrid mixing of digital music inputs and analog music inputs for both the
- Inputs: Digital One system (stereo) A/D converters Three channels
- Outputs: Digital One system (stereo) D/A converters Two channels
- A/D converters Second-order delta-sigma modulation Three channels