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Across 1. signals obtained by encoding each quantized signal into a digital word 2. A PWM signal can be generated by _____ multivibrator. 4. Adaptive DPCM is used to______bandwidth. 7. as no. of levels _______, Quantization noise is reduced . 8. In a delta modulation system, ______ noise occurs when the modulating signal remains constant. 11. Uniform quantization provides better quantization for ______ signals. 13. Type of quantization is most preferable for audio signals for human ear. (2 Words) 15. In the eye pattern as the eye opens, ISI _______ 17. In PCM encoding, quantization level varies as a function of ________ 18. In PCM the samples are dependent on ________. 19. Choosing a discrete value that is near but not exactly at the analog signal level leads to ____ error.

Down 1. These waveforms are also called as line codes. (3 Words) 3. In this, type of signals mixing is easier. 5. Delta modulation uses _____ bits per sample. 6. Equalization method which is done by tracking a slowly time varying channel response 9. A PAM signal can be demodulated using _____ filter (2 Words) 10. Process of compression of signal and then apply as a input to the uniform quantizer. 12. In _____ waveform logic 1 is represented by half bit wide pulse and logic 0 is represented by absence of pulse. (2 Words) 14. Number of possible digital values to represent each sample in PCM is known as (2 Words) 16. In μ-law compression characteristics, we get linear amplification or uniform quantization when μ=______.