OGA to AMR Converter

OGA to AMR Converter

OGA is the audio-only flavor of the Ogg container — usually full-band Vorbis or Opus that can carry music. AMR is a narrowband speech codec built for mobile voice, not music. This converter re-encodes an OGA file into a small .amr clip for the specific cases where you need a tiny voice file: an old feature phone, an MMS message, or a voice-memo workflow that only accepts AMR.

This is a downward, lossy-to-lossy transcode. AMR-NB downsamples to 8 kHz mono and keeps only the speech band, so any music or high frequencies in the source will sound muffled and telephone-quality afterward. If your goal is just a smaller, shareable file with good fidelity, convert to MP3 instead — AMR is the right target only when something specifically requires it.

OGA Format at a Glance

AMR Format at a Glance

How to Convert OGA to AMR

1. Upload Your OGA File: Drag and drop your file onto the page or click "+ Add Files" to select it from your computer. You can queue several files to convert with the same settings.
2. Pick the AMR Codec and Quality Preset: Under Advanced Options, the output defaults to AMR Narrow Band; choose AMR Wide Band if your target device supports it. Set the Quality Preset (the default is Highest) to pick the bitrate mode.
3. Adjust Audio Sample Rate, Audio Channel, or Trim: AMR-NB is fixed at 8000 HZ mono, so leave those as set; use Trim to clip to just the spoken section and keep the file small.
4. Convert and Download: Click "Convert" and download your .amr file. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.

Frequently Asked Questions

Why does my OGA music sound muffled after converting to AMR?

AMR-NB is a narrowband speech codec: it downsamples to 8 kHz mono and keeps only the ~200–3400 Hz telephone band, discarding everything above it. That is by design for voice. Any music, cymbals, or vocal sibilance in the source is simply gone after the conversion — there is no setting that restores it. If you need fidelity, convert to MP3 or keep the audio in WAV instead.

When does it actually make sense to convert OGA to AMR?

When something specifically requires AMR: sending a voice clip over MMS, loading a ringtone or voice memo onto an older feature phone, or feeding a speech-only pipeline that accepts only .amr. For voice-only content the quality drop is acceptable and the files are tiny — a minute of speech is often well under 100 KB.

Will converting to AMR make the file smaller?

Almost always, yes. AMR-NB tops out at 12.2 kbit/s, far below a typical Vorbis stream. In our testing, a one-minute OGA voice clip re-encoded to AMR-NB at the highest mode lands around 90 KB. The trade-off is fidelity: the savings come entirely from throwing away bandwidth and channels, not from clever compression.

What is the difference between AMR Narrow Band and AMR Wide Band?

AMR-NB runs at 8 kHz with a ~200–3400 Hz band and 8 bitrate modes up to 12.2 kbit/s — this is classic mobile-phone voice. AMR Wide Band (AMR-WB, ITU-T G.722.2) samples at 16 kHz with a 50–7000 Hz band and modes up to 23.85 kbit/s, so speech sounds noticeably clearer. Both are mono and speech-focused; pick Wide Band only if the receiving device or service supports it.

Can I recover the original quality by converting AMR back to OGA or MP3?

No. AMR-NB permanently discards the high frequencies and the second channel, so converting back only re-wraps what is left — it cannot rebuild what was removed. Keep your original OGA if you might need full quality later, and treat the AMR file as a one-way, voice-only export.

Is converting OGA to AMR private?

Yes. Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. There is no sign-up, no watermark, and files are never shared or made public.