Audio Sample Rate Converter
Convert audio sample rate to 8kHz, 22kHz, 44.1kHz, 48kHz, or 96kHz. Match sample rates across files, prepare audio for specific platforms, or downsample for smaller file sizes.
Drop your audio file here
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Continue Your Audio Journey
What is Audio Sample Rate Converter Online?
The Audio Sample Rate Converter changes the sample rate of your audio files. Convert between standard rates like 44.1kHz (CD), 48kHz (video/broadcast), and 96kHz (hi-res), or downsample to 8kHz or 22kHz for telephony and low-bandwidth use. The Web Audio API handles the resampling with proper anti-aliasing. Everything runs in your browser.
How does Audio Sample Rate Converter Online work?
This tool decodes your audio file and re-renders it at the target sample rate using an OfflineAudioContext. The Web Audio API's built-in resampling handles interpolation and anti-aliasing filtering automatically.
Key Features
- Convert to 8kHz, 22kHz, 44.1kHz, 48kHz, or 96kHz
- Proper anti-aliasing during conversion
- Supports all input formats (MP3, WAV, OGG, FLAC)
- Browser-based with no file uploads
- Output as WAV for maximum compatibility
- Free to use with no sign-up
Common Use Cases
Matching Sample Rates for Mixing
When combining files recorded at different sample rates, convert them all to the same rate first to avoid pitch and timing problems in your mix.
Preparing Audio for Video
Video production typically uses 48kHz audio. If your recordings are at 44.1kHz (CD standard), resample to 48kHz before importing into your video editor.
Creating Phone-Quality Audio
Downsample to 8kHz for telephony applications, IVR systems, or any use case that requires very low bandwidth audio.
Upsampling for Hi-Res
Convert 44.1kHz audio to 96kHz for hi-res distribution or to match the sample rate of a high-resolution recording session.
How to Use This Tool
Upload Your Audio File
Click the upload area or drag and drop your audio file.
Select Target Sample Rate
Choose the sample rate you want from the dropdown: 8kHz, 22kHz, 44.1kHz, 48kHz, or 96kHz.
Click Resample
The tool converts your audio to the selected sample rate.
Download the Result
Download the resampled audio as a WAV file.
Pro Tips
- 1
Downsampling removes high-frequency content above half the new sample rate - a 22kHz file cannot contain frequencies above 11kHz
- 2
Upsampling does not add new detail - it interpolates between existing samples. A 44.1kHz file upsampled to 96kHz sounds the same
- 3
44.1kHz is standard for music (CDs). 48kHz is standard for video and broadcast. Match the standard for your distribution format
- 4
Always keep your original file since resampling is not perfectly reversible
Frequently Asked Questions
Does upsampling improve audio quality?
No. Upsampling adds samples through interpolation but does not create new audio detail that was not in the original. A 44.1kHz recording upsampled to 96kHz contains the same information - just more samples representing it.
What sample rate should I use?
44,100 Hz for music distribution (CD standard). 48,000 Hz for video and broadcast. 96,000 Hz for hi-res audio or studio archiving. 8,000 Hz for telephony. Match whatever your target platform requires.
Will downsampling reduce file size?
Yes. Halving the sample rate roughly halves the file size since there are half as many samples per second. A 48kHz WAV downsampled to 22kHz will be less than half the original size.
Does this upload my file?
No. All processing runs locally in your browser. Your file never leaves your device.