Change audio quality
Choose an audio bitrate and sample rate for your export.
Drop a file here or choose from your device
Processed privately with FFmpeg in this browser.
A practical guide to Change audio quality
Change Audio Quality re-encodes a track with a selected bitrate and sample rate. It helps meet storage, upload, or playback requirements without changing the musical arrangement or duration.
Example: reduce a voice memo for email
Choose a moderate mono MP3 bitrate for speech, keep a normal speech sample rate, and listen for metallic artifacts before attaching it.
Task-specific steps
- 1
Open the audio and note whether it contains speech, complex music, stereo ambience, or high-frequency detail.
- 2
Set bitrate, sample rate, channels, and output format to the lowest settings that still suit the destination.
- 3
Encode the result, compare difficult passages through headphones, and confirm the new file size and duration.
Options that affect the result
- Bitrate controls lossy data per second, while the sample-rate selector offers 22.05, 44.1, and 48 kHz.
- Channel selection can retain the source layout or explicitly export mono or stereo audio.
Limitations to know first
- Repeated lossy re-encoding accumulates artifacts, even when the new bitrate is higher.
- Reducing sample rate or channels is irreversible in the exported copy and can remove useful content.
Questions specific to this task
What matters more, bitrate or sample rate?
They solve different problems. Bitrate controls compression detail, while sample rate controls the frequency bandwidth represented during encoding.
Is stereo useful for a single speaker?
Usually not unless room ambience or spatial cues matter. Mono can use the available bitrate more efficiently for centered speech.