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Python Time & Space Complexity

Sunau

sunau Module¶

The sunau module reads and writes Sun AU audio files, a simple uncompressed audio format.

Complexity Reference¶

Operation	Time	Space	Notes
`open()`	O(1)	O(1)	Open file
Read/write frames	O(n)	O(n)	n = frame count

Working with AU Files¶

Reading Audio¶

import sunau

# Open - O(1)
with sunau.open('sound.au', 'rb') as f:
    channels = f.getnchannels()
    framerate = f.getframerate()
    frames = f.getnframes()

    # Read - O(n)
    audio = f.readframes(frames)

Writing Audio¶

import sunau

# Create - O(1)
with sunau.open('output.au', 'wb') as f:
    f.setnchannels(1)
    f.setsampwidth(2)
    f.setframerate(8000)

    # Write - O(n)
    f.writeframes(audio_data)