In the receiver, the compressed PCM code is expanded and then decoded (converted back to digital).Group of answer choicesTrueFalse

Answer Evaluation

The statement suggests a process involving the expansion and decoding of a compressed Pulse Code Modulation (PCM) code.

Analysis

1. Understanding PCM: PCM is a method used to digitally represent analog signals. In PCM, analog signals are sampled at uniform intervals and quantized to a series of coded values, which are then often compressed for efficient transmission or storage.

2. Expansion and Decoding: The terms "expanded" and "decoded" imply two actions:

   • Expansion refers to decompressing the PCM data that has been compressed to reduce its size. This process involves reversing the compression algorithm to restore the original coded values.
   • Decoding indicates converting these values back into their original digital or analog forms, possibly interpreting the PCM back into an analog signal.

Conclusion

In the context of PCM:

• The process indeed consists of a decompression stage followed by decoding to recover the original signal, which aligns with how PCM systems typically operate.

Final Answer

True - The statement that the compressed PCM code is expanded and then decoded is accurate.