DivX to AMR Converter

Convert DivX to AMR: What This Tutorial Covers

DivX is an MPEG-4 Part 2 video format (usually an AVI file with MP3 audio), while AMR is a narrowband speech codec built for mobile voice. This converter pulls the audio out of your DivX clip and re-encodes it to AMR — the video is discarded. Because AMR is tuned for human speech, this is the right move for a voicemail, voice memo, or ringtone, but the wrong move for music; this page walks you through both the steps and the trade-offs.

How to Convert DivX to AMR

1. Upload Your DivX File: Drag and drop your .divx (or DivX-encoded AVI) file onto the page, or click "+ Add Files" to browse. You can queue several clips and convert them with the same settings.
2. Pick the AMR Codec and Quality Preset: AMR is preselected as the output. Open Advanced Options to choose AMR Narrow Band (8 kHz, the standard mobile-voice profile) or AMR Wide Band (16 kHz, clearer speech), then set the Quality Preset or pick a Constant Bitrate.
3. Set Audio Channel, Sample Rate, or Trim (Optional): AMR-NB is mono only and locked to an 8000 Hz sample rate; use the Trim control to keep just the spoken section you need.
4. Convert and Download: Click "Convert" and download your .amr file. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours. No sign-up, no watermark.

Walk-through: Choosing the Right AMR Settings

The two AMR variants in the dropdown change the ceiling on quality more than any bitrate slider does:

• For voicemail, MMS, or legacy-phone playback — pick AMR Narrow Band. It samples at 8 kHz and operates in eight modes from 4.75 to 12.2 kbit/s, which is exactly what carrier voicemail and older feature phones expect.
• For clearer recorded speech (interviews, voice notes) — pick AMR Wide Band. Its 16 kHz sample rate captures more of the consonant detail that AMR-NB clips, at the cost of a larger file and less universal device support.
• For the smallest possible file — choose AMR Narrow Band with a low Constant Bitrate (down to 4.75 kbit/s). Speech stays intelligible; you simply lose headroom.
• To grab one line or clip — set the Trim start and duration so you only encode the segment you want, rather than the whole soundtrack.

AMR is mono by design, so the Audio Channel control has no stereo option for the narrowband profile — that is a property of the codec, not a limitation of the tool.

AMR Narrow Band vs AMR Wide Band

AMR vs the Other Audio Targets for a DivX Soundtrack

AMR is the right answer for a narrow set of jobs. If your clip's audio is anything other than plain speech, one of these is a better extraction target.

Common Errors and How to Fix Them

• "The AMR file sounds muffled or tinny" — Expected for music. AMR filters out the high and low frequencies that music needs. Convert to MP3 or AAC instead if the audio isn't pure speech.
• "The output is silent or empty" — The source DivX has no audio track (some screen-capture or silent clips don't). There's nothing to extract; check the original plays with sound first.
• "My phone or player won't open the .amr file" — Many desktop players and some newer phones dropped AMR support. Re-convert the audio to MP3, which plays nearly everywhere.
• "The file is bigger than I expected" — You likely chose AMR Wide Band or a high bitrate. Switch to AMR Narrow Band at 4.75–7.4 kbit/s for the smallest voice files.

When This Doesn't Work

If your DivX clip is mainly music, a song, or layered general audio, AMR is the wrong target — it was engineered for the roughly 200–3,400 Hz telephone band of human speech and will sound badly degraded. Extract to MP3 or AAC instead and keep AMR for genuine voice workflows like voicemail, ringtones, and MMS. If the file is DRM-protected or the container is corrupt, the audio stream can't be read and no online tool can extract it; try re-exporting from the original source first.

Frequently Asked Questions

Why does my converted AMR music sound so bad?

AMR is a speech codec, not a music codec. 3GPP adopted it in the late 1990s to compress the narrow telephone band of human voice — roughly 200–3,400 Hz — and it deliberately discards the high and low frequencies that music depends on. For songs or general audio, convert your DivX to MP3 or AAC instead — AMR only makes sense for voice.

What's the difference between AMR Narrow Band and AMR Wide Band?

AMR Narrow Band (AMR-NB) samples at 8 kHz with eight bitrate modes from 4.75 to 12.2 kbit/s — the classic mobile-voicemail profile. AMR Wide Band (AMR-WB) samples at 16 kHz, capturing more consonant detail for clearer recorded speech, but produces larger files and is supported on fewer devices.

Is AMR mono or stereo?

AMR is mono only. The codec was designed for single-channel voice transmission, so even if your DivX has stereo audio, the AMR output is mixed down to one channel. If you need stereo, convert to MP3 or AAC instead.

What happens to the video when I convert DivX to AMR?

The video is discarded. This is an audio-extract: the tool reads the audio stream from your DivX file and re-encodes only that to AMR. If you want to keep the video, use a video output like DivX to MP4 instead.

Can I use a DivX-to-AMR conversion to make a ringtone?

Yes — AMR Narrow Band is a long-standing ringtone format for feature phones and is small enough for MMS. Trim to the few seconds you want before converting. Note that iPhones expect M4R and most modern Android phones accept MP3, so AMR is mainly for older or carrier-specific devices.

Are my files kept private?

Yes. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours. There's no sign-up, no watermark, and files are never shared or made public.

Does converting DivX to AMR improve the audio in any way?

No, and it is worth being blunt about it. The soundtrack in a DivX file is usually already MP3 or AC-3 — lossy audio that has thrown away information once. Extracting it to AMR decodes that track and re-compresses it with a second lossy codec, so you take a second generation of loss on top of the first, and AMR's narrow bandwidth then discards everything outside the telephone band on the way through. Nothing about the process adds detail. The only thing you gain is size and device compatibility with voice-oriented hardware, which is exactly why AMR is worth choosing for speech and never for music.

How small can an AMR voice file get?

In our testing, a one-minute spoken-word clip extracted at AMR Narrow Band's lowest 4.75 kbit/s mode lands around 35 KB and stays clearly intelligible — a fraction of the size of the same minute as an MP3, which is exactly why carriers used AMR for voicemail.