Change Sample Rate
Resample audio to 8, 16, 22.05, 44.1, 48 or 96 kHz for telephony, speech or studio use.
Add audio
MP3, WAV, M4A, OGG, FLAC, OPUS — or a video to pull audio from.
Choose an output
Resample audio to 8, 16, 22.05, 44.1, 48 or 96 kHz for telephony, speech or studio use.
Fine-tune
Optional — sensible defaults are already set.
About Change Sample Rate
Sample rate is how many times per second audio is measured. This tool resamples your file to 8, 11.025, 16, 22.05, 32, 44.1, 48 or 96 kHz, which is often required by phone systems, speech software, video projects and hardware.
When it helps
- Converting to 8 kHz for IVR menus and VoIP or telephone systems
- Preparing 16 kHz audio for speech recognition and voice AI tools
- Matching 44.1 kHz music to the 48 kHz standard used in video editing
- Reducing sample rate to shrink voice files for embedded devices
Tips
- Lower rates remove high frequencies: 8 kHz keeps content up to about 4 kHz, enough for intelligible speech but not for music.
- Upsampling, for example 44.1 to 96 kHz, does not add detail. Only do it when software or a device demands that rate.
- 96 kHz is only available with WAV or FLAC output; MP3, M4A and OGG don't support it and the tool will tell you to switch.
- Default output is WAV, which is what most telephony and speech tools expect.
Good to know
Quick answers about change sample rate in your browser.
44.1 kHz is the CD and music-streaming standard, while 48 kHz is the norm for video and film. Use whichever your project or platform uses to avoid an extra resample later.
Many speech-to-text engines work at 16 kHz mono. Check your tool's documentation, but 16 kHz WAV is a common safe choice.
Yes. There is no sign-up, no watermark and no limit on how many files you process.
No. Files are read and processed locally in your browser, so they never leave your device.
Related tools
Part of the Audio Effects & Tools collection.