Real-Time Waveform Component | Dataford Interview Questions

Implement a custom view or UI component that displays a real-time audio waveform during playback in a Suno mobile app.

For grading, implement the waveform aggregation algorithm used by the component. Given signed audio samples and a requested number of display bars, return the maximum absolute amplitude for each evenly sized sample range. The function should preserve the input order and produce exactly one value per bar.

Input/output contract: samples is a non-empty list of integers, and bar_count is an integer from 1 through len(samples). Return a list of bar_count non-negative integers.

Constraints

1 <= len(samples) <= 5000
1 <= bar_count <= len(samples)
-1000000 <= samples[i] <= 1000000
Return exactly bar_count values

Function Signature

def aggregate_waveform(samples, bar_count):

Your question is Real-Time Waveform Component. Start with the requirements in the Question tab.

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Problem

Implement a custom view or UI component that displays a real-time audio waveform during playback in a Suno mobile app.

Input/output contract: samples is a non-empty list of integers, and bar_count is an integer from 1 through len(samples). Return a list of bar_count non-negative integers.

Constraints

1 <= len(samples) <= 5000
1 <= bar_count <= len(samples)
-1000000 <= samples[i] <= 1000000
Return exactly bar_count values

Function Signature

def aggregate_waveform(samples, bar_count):

Your question is Real-Time Waveform Component. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.