Duration Formula:
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The Audio Playback Speed Calculator calculates the new duration of audio or video content when played at different speeds. It adjusts playback time for sped-up or slowed audio/video files.
The calculator uses the duration formula:
Where:
Explanation: The formula inversely relates playback speed to duration - faster playback shortens duration, slower playback lengthens it.
Details: Accurate duration calculation is essential for content creators, podcasters, video editors, and learners who adjust playback speeds for efficiency or accessibility.
Tips: Enter original duration in seconds and speed multiplier (e.g., 1.25 for 1.25x speed). Both values must be positive numbers.
Q1: What is a typical speed multiplier range?
A: Most media players support 0.5x to 3.0x speeds, with common values being 0.75x, 1.0x, 1.25x, 1.5x, and 2.0x.
Q2: Does this work for video content as well?
A: Yes, the calculation applies equally to audio and video content since both have temporal duration.
Q3: How accurate is this calculation?
A: The calculation is mathematically precise for linear speed adjustments in digital media players.
Q4: Can I calculate time saved by speeding up?
A: Yes, time saved = Original Duration - New Duration. For example, speeding up 60 minutes to 1.5x saves 20 minutes.
Q5: What about variable speed playback?
A: This calculator assumes constant speed. Variable speed requires more complex segment-by-segment calculation.