OGG to AMR Converter

Convert OGG to AMR: What This Tutorial Covers

This walks you through turning an .ogg file — usually Vorbis, a lossy but full-range music and audio codec — into .amr, the narrowband mono telephone codec that GSM and 3G phones, voicemail boxes, and IVR systems were built around. Read this first if you only need an .amr because some old phone or telephony system demands it: this is a deliberate downgrade, not a quality upgrade. If you just want a smaller universal file you can play and share, convert OGG to MP3 or OGG to WAV instead.

How to Convert OGG to AMR

1. Upload Your OGG File: Drag and drop your .ogg file onto the page, or click "Add Files" to browse. You can queue several at once and convert them with the same settings.
2. Pick the Audio Codec: Open Advanced Options and under Audio Codec choose AMR Narrow Band (8 kHz, the classic GSM/voicemail format) or AMR Wide Band (16 kHz, a fuller voice band) — only pick Wide Band if the receiving system explicitly accepts it.
3. Set the Constant Bitrate and Channel (Optional): Leave Quality Preset on its default, or choose a Constant Bitrate from the AMR rate ladder. Audio Channel defaults to Mono and Audio Sample Rate to 8000 Hz, matching the codec.
4. Convert and Download: Click "Convert" and download your AMR file. No sign-up, no watermark.

Walk-through: Choosing Codec, Bitrate, and Channel

The defaults are already set for maximum compatibility, so most people can skip straight to Convert. Touch these settings only when the receiving system asks for something specific.

• If you are unsure what to pick: leave Audio Codec on AMR Narrow Band, Audio Channel on Mono, and Audio Sample Rate on 8000 Hz. This is the format GSM/3G voicemail, MMS voice, and most legacy IVR expect, and it is the safest bet.
• If the system supports HD voice: switch Audio Codec to AMR Wide Band and Audio Sample Rate to 16000 Hz. Wideband keeps a 50–7,000 Hz band — noticeably fuller speech — but older equipment will reject it, so confirm support first.
• If you need a specific file size or quality: open Constant Bitrate and pick from the rate ladder. AMR-NB runs 4.75 up to 12.2 kbit/s (7.40 kbit/s is the rate often labelled "toll quality"); AMR-WB runs 6.60 up to 23.85 kbit/s. Higher rates sharpen the sound within the codec's band but never widen it.
• If your OGG is stereo music: it will be folded down to a single mono channel. That is expected for AMR — there is no stereo AMR — so do not be surprised when the two channels collapse into one.

Common Errors and How to Fix Them

• "The output sounds muffled, like a phone call" — That is AMR working as designed, not a fault. AMR-NB keeps only the ~200–3,400 Hz telephone band; everything above and below is discarded. If you wanted full-range audio, AMR is the wrong target — use OGG to MP3 instead.
• "My stereo mix lost a channel / sounds centered" — AMR is a mono-only speech codec, so stereo is mixed down to one channel. There is no setting that preserves stereo in AMR.
• "My target system rejected the .amr file" — It most likely expects narrowband. If you exported AMR Wide Band (16 kHz), re-convert with Audio Codec set to AMR Narrow Band and Audio Sample Rate 8000 Hz, which has the widest device support.
• "The .ogg would not upload or convert" — Some .ogg files carry Opus or FLAC rather than Vorbis, and a few are actually video (.ogv). Confirm the file is audio; if it is an Opus voice note, start from OPUS to AMR instead.

When This Doesn't Work

AMR is built for speech, so any OGG that is music, ambience, or layered sound will lose most of what makes it sound good once it is squeezed into a narrowband mono channel — the conversion still succeeds, but the result is only useful where a telephony system insists on .amr. If your goal is general listening, archiving, or editing, this is the wrong format: convert to OGG to MP3 for a small universal file or OGG to WAV for an uncompressed, editable one. And if you need to take an existing .amr back into a web-friendly format, the reverse tool is AMR to OGG.

Frequently Asked Questions

Why does my OGG music sound so bad after converting to AMR?

Because AMR is a telephone codec and the conversion throws away nearly everything that makes music sound full. AMR-NB, the 3GPP speech codec that GSM and 3G calls used, samples at just 8 kHz and keeps only the roughly 200–3,400 Hz voice range in a single mono channel. A Vorbis .ogg can carry the full audible spectrum in stereo; folding that down to AMR-NB discards the highs, the lows, and the second channel, which is why the result sounds like a phone recording. That is the codec working as designed, not a flaw in the conversion.

When should I actually convert OGG to AMR?

Only when something on the receiving end specifically requires an .amr file: feeding audio into a telephony or IVR platform, loading a prompt onto old phone firmware or a carrier voicemail system, or producing a test fixture for telecom software that expects AMR input. For those, AMR is the correct target despite the fidelity loss. If you just want everyday playback or sharing, AMR is the wrong choice — use OGG to MP3 for a small universal file or OGG to WAV for an editable one.

Should I pick AMR Narrow Band or AMR Wide Band?

Match whatever the receiving system accepts. AMR-NB (8 kHz, ~200–3,400 Hz) is the classic format for GSM/3G voicemail, MMS voice, and most legacy IVR — the safest bet if you are not sure. AMR-WB (16 kHz, 50–7,000 Hz) carries a noticeably fuller voice and is used by newer HD-voice systems, but older equipment will reject it. Both are mono speech codecs, so neither preserves the stereo in a music .ogg. When in doubt, choose Narrow Band for the widest compatibility.

Will a higher AMR bitrate make my OGG sound better?

Only up to the codec's narrow ceiling. Moving from 4.75 to 12.2 kbit/s on AMR-NB improves clarity within the telephone band, and 7.40 kbit/s is the rate often labelled "toll quality." But no AMR bitrate restores frequencies the codec cannot represent — AMR-NB will never reach beyond ~3,400 Hz no matter how high you set the rate. Pick a bitrate that satisfies your target system; pushing it higher only enlarges the file without widening the sound.

How small will the AMR file be compared to my OGG?

Much smaller — that compactness is the whole point of the format. AMR-NB at its top 12.2 kbit/s rate runs roughly 90 KB per minute of audio, and lower rates are smaller still, which is why voicemail and MMS systems standardized on it. In our testing, a one-minute Vorbis .ogg converted to AMR-NB at 12.2 kbit/s produced a file in the low-90s of kilobytes, far below the original. If you need an even more compact result, drop to a lower Constant Bitrate from the AMR ladder.

How are my files handled, and how long do you keep them?

Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, and your files are never shared or made public. If you only need part of a recording, use the Trim controls so you upload and convert less of the file.