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ADPCM to G.729 - Online Audio Converter

Convert ADPCM to G.729 online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.

[+] Drop ADPCM audio here or click to select ADPCM, WAV
G.729 (G.729)

About ADPCM to G.729

Convert ADPCM to G.729. ADPCM predicts samples to quarter voice-band bitrates. G.729 fits calls into 8 kbps with algebraic prediction. Tooling reflects its licensed history; prefer Opus for new recordings..

Why convert ADPCM to G.729?

ADPCM vs G.729

CodecADPCMG.729
Compressionlossylossy
Sample behaviorQuality set by bitrateQuality set by bitrate
Typical useADPCM predicts samples to quarter voice-band bitrates.G.729 fits calls into 8 kbps with algebraic prediction.

When not to convert ADPCM to G.729

Limits

Starting point: ADPCM - ADPCM predicts samples to quarter voice-band bitrates. Variants differ by vendor, so confirm the flavor before converting. Tooling reflects its licensed history; prefer Opus for new recordings. Encode G.729 (G.729) from ADPCM at 256k for music or 128k for speech, starting from the master.

How conversion works

Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.

Related conversions

How do I convert ADPCM to G.729?
Drop your ADPCM file onto this page, choose quality and codec settings, then click Convert. The result downloads as G.729 instantly. All processing runs in your browser.
What codec is used for G.729?
The default codec for G.729 is G.729. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.