You have a stereo WAV file loaded as a NumPy array with shape (44100, 2). How do you convert it to mono by averaging the two channels?

hard📝 Application Q9 of 15

SciPy - Integration with Scientific Ecosystem

Amono = data.sum(axis=1)

Bmono = data.mean(axis=0)

Cmono = data.mean(axis=1)

Dmono = data.flatten()

Step-by-Step Solution

Solution:

Step 1: Understand array shape and axis
Shape (44100, 2) means 44100 samples, 2 channels; axis=1 is channel axis.
Step 2: Average across channels
Use mean(axis=1) to average left and right channels per sample.
Final Answer:
mono = data.mean(axis=1) -> Option C
Quick Check:
Average channels with mean(axis=1) [OK]

Quick Trick: Average channels with mean(axis=1) [OK]

Common Mistakes:

Master "Integration with Scientific Ecosystem" in SciPy

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More SciPy Quizzes