Compare PCM and Delta modulation.
|1] Pulse code modulation has sample-quantize and encode mechanism.||1] Delta modulation has sample-compare and encode mechanism.|
|2] It requires n bits per sample, depending upon accuracy.||2] It requires a single bit per sample.|
|3] Band width required is more as compared.||3] Band width required is less as compared.|
|4] Quantization error is present.||4] slope over load & granular noise is present.|
|5] Since, more number of bits are present, power requirement is large.||5] Since less number of bits are present, power required is less.|