Change Speed
Speed up or slow down your audio. Pitch changes proportionally with speed.
Upload Audio File
Click to upload or drag & drop
MP3, WAV, OGG, FLAC, AAC, M4A
1.0 = original speed. Below 1.0 slows down, above 1.0 speeds up. Pitch shifts proportionally.
Tips
- •0.5× = half speed (lower pitch)
- •1.5× = common for podcast speed listening
- •2.0× = double speed for reviewing lectures
- •Use Change Pitch tool to shift pitch without speed change
Speed up or slow down audio recordings without affecting the pitch. Xonvert's speed changer uses time-stretching algorithms to maintain natural-sounding voice and music at any speed. Perfect for speeding through lectures, slowing down music for practice, or creating slow-motion audio effects.
Key Features
- ✓Speed up from 0.5x to 4x playback speed
- ✓Slow down without pitch distortion
- ✓Time-stretch preserves natural pitch
- ✓Supports MP3, WAV, OGG, FLAC
- ✓Preview speed changes before processing
How to Change Audio Speed Online
- 1
Upload your audio
Select the audio file to speed up or slow down.
- 2
Set speed multiplier
Choose your desired speed (e.g., 1.5x faster, 0.75x slower).
- 3
Download adjusted audio
Click "Process" and download your speed-adjusted file.
Common Use Cases
- •Speeding up lecture recordings for faster review
- •Slowing down music to learn complex parts by ear
- •Creating slow-motion audio effects for video projects
- •Adjusting podcast speed for tighter episode length
Frequently Asked Questions
Does changing speed affect pitch?▼
By default, pitch is preserved when changing speed. The audio sounds natural at the new speed without chipmunk or slow-motion effects.
How much can I speed up audio?▼
You can adjust speed from 0.25x (ultra slow) to 4x (quadruple speed). Speech remains understandable up to about 2x.