Does converting AMR to MP3 lose quality?

A little, and the source was already telephone-grade. AMR is a speech codec; MP3 is another lossy pass. At 128kbps the extra loss is hard to hear on a voice memo. You cannot recover a studio recording from an 8 kHz phone note. Keep the AMR if you still have the original device file.

Should I use 128kbps or 320kbps?

128kbps. AMR voice notes do not contain the highs 320kbps would spend bytes on. 192kbps is harmless and matches this site’s default. 320kbps only makes a larger MP3 of the same narrow-band speech. Save high bitrates for music sources, not MMS audio.

Is AMR the same as 3GP?

AMR is the speech codec. 3GP is a container that can hold AMR plus optional video. This page wants a .amr file. If your voice note is a tiny video from an old phone, use 3GP to MP4 or extract audio from the video instead of renaming the extension.

Will this work on iPhone or Android?

Yes. Safari and Chrome run the engine. AMR files are small, so phones handle them easily. A huge dump of notes can still stress RAM if you try to force a batch. Convert one, download, then the next.

Can I convert several AMR files at once?

Not currently. One file at a time keeps memory use predictable. Convert a memo, download the MP3, then drop the next. After the first load, the engine stays in the tab so later notes skip the 25MB download. There is no folder-of-voicemails shortcut.

Is it legal to convert AMR to MP3?

Converting voice notes you recorded is the intended case. Converting a call recording you are not allowed to keep can still be a legal issue in your jurisdiction. Videozify does not store files and cannot check those rules or consent.

AMR → MP3

AMR to MP3 Converter

Drop a file here

Click to browse, or paste a file from the clipboard.

Choose file

An AMR to MP3 converter transcodes a narrow-band phone voice note into an MP3 almost every player accepts. Videozify transcodes the file. Drop the .amr, pick a bitrate, and download an MP3 for a car stereo that never learned 3GPP speech codecs.

How to convert AMR to MP3

Drop your AMR file onto the box above, or click Browse to choose it from disk.
Choose an MP3 bitrate — 128kbps is enough for speech; 192kbps is the default.
Press Convert and wait until the progress bar reaches one hundred percent.
Download the MP3 when it appears; the file saves only to this device.

Why convert AMR to MP3?

AMR is a speech codec that 3GPP built for mobile calls and MMS, which is why old Android voice recorders, Nokia notes, and some WhatsApp-era dumps write .amr at 8 kHz. Cars, iPhone Music, and cheap MP3 players ignore it. You convert because the destination decoder is missing, not because the file is huge — AMR is already tiny.

This is a one-way trip that cannot invent missing bandwidth. AMR-NB is telephone audio. Exporting at 320kbps MP3 does not restore a studio mic. 128kbps is plenty for talk. Keep 192kbps as the default only so the control matches other pages; it will not recover consonants the phone never captured.

AMR-WB (wideband) also appears as .amr. If ffmpeg can decode it, you get an MP3. If it cannot, the job fails rather than writing silence. Desktop ffmpeg can be a second opinion for odd AMR variants this wasm build does not handle.

If the voice note is inside a 3GP video, convert 3GP to MP4 or extract audio from the video. This page wants a raw .amr stream, not a video wrapper.

If the memo includes long silence, trim the audio after converting. If the phone captured too quietly, boost the volume on the MP3 copy.

AMR vs MP3: what's the difference?

	AMR	MP3
Extension	.amr	.mp3
Type	3GPP speech audio	MPEG audio
Typical size (1 min)	100–400 KB	~1 MB at 128kbps
Compression	Lossy speech (AMR-NB/WB)	Lossy MP3
Quality	Telephone bandwidth	Second pass, still speech
Device support	Old phones, some Android	Near universal

AMR is a speech codec that mobile phones used for voice notes and MMS, which car stereos and iPhone Music still refuse to play.

Which bitrate should you choose for AMR?

128kbps MP3 is enough. The source is 8 kHz or 16 kHz speech. 256 and 320 only inflate a phone call. 192kbps is the site default for consistency; it will not sound “better” than 128 on an AMR original.

You cannot hear more than the recorder captured. If the note is quiet, boost volume after converting rather than cranking bitrate.

There is no sample-rate control. Output follows what the decoder emits, then MP3 frames it. That is the whole job: compatibility, not mastering.

Will iPhone play an AMR file?

Sometimes in Files, almost never in Music as a first-class track. CarPlay wants MP3 or AAC. If you need the memo in a playlist or on a USB stick, MP3 removes the argument.

Android is kinder to AMR, which is why a Pixel recording fails after AirDrop to a Mac user. The conversion is for the Apple and car side of a mixed household.

A file named .amr that is actually a 3GP video will fail validation here. Use the 3GP page or rename only after you have confirmed it is raw audio.

Frequently asked questions

Does converting AMR to MP3 lose quality?: A little, and the source was already telephone-grade. AMR is a speech codec; MP3 is another lossy pass. At 128kbps the extra loss is hard to hear on a voice memo. You cannot recover a studio recording from an 8 kHz phone note. Keep the AMR if you still have the original device file.
Should I use 128kbps or 320kbps?: 128kbps. AMR voice notes do not contain the highs 320kbps would spend bytes on. 192kbps is harmless and matches this site’s default. 320kbps only makes a larger MP3 of the same narrow-band speech. Save high bitrates for music sources, not MMS audio.
Is AMR the same as 3GP?: AMR is the speech codec. 3GP is a container that can hold AMR plus optional video. This page wants a .amr file. If your voice note is a tiny video from an old phone, use 3GP to MP4 or extract audio from the video instead of renaming the extension.
Will this work on iPhone or Android?: Yes. Safari and Chrome run the engine. AMR files are small, so phones handle them easily. A huge dump of notes can still stress RAM if you try to force a batch. Convert one, download, then the next.
Can I convert several AMR files at once?: Not currently. One file at a time keeps memory use predictable. Convert a memo, download the MP3, then drop the next. After the first load, the engine stays in the tab so later notes skip the 25MB download. There is no folder-of-voicemails shortcut.
Is it legal to convert AMR to MP3?: Converting voice notes you recorded is the intended case. Converting a call recording you are not allowed to keep can still be a legal issue in your jurisdiction. Videozify does not store files and cannot check those rules or consent.