AIFF → AMR

Convert Your AIFF to AMR documents smoothly

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How to convert AIFF to AMR

Step 1: Transfer your AIFF files using the button above or by slide and deposit.

Step 2: Click the 'Convert' button to start the conversion.

Step 3: Retrieve your converted AMR files.

AIFF to AMR Conversion FAQ

How do I convert AIFF audio to AMR without losing quality?

Upload the AIFF file and the converter chooses the AMR codec and bitrate to match the source. Lossless AMR (WAV / FLAC / ALAC) preserves every sample bit-identically; lossy AMR (MP3 / AAC / OGG / Opus) defaults to 192 kbps which is transparent for most ears. AIFF stores uncompressed big-endian PCM — the Apple-side equivalent of WAV, with the same bit-for-bit fidelity. AMR is a narrowband speech codec running between 4.75 and 12.2 kbps, modelling the human vocal tract rather than the full audio spectrum.

How much quality do I lose converting AIFF to AMR?

Some, and it is permanent — this is the one direction where information is genuinely thrown away. AIFF holds every sample exactly; AMR discards what a psychoacoustic model predicts you will not hear. At 192 kbps and above that prediction is good enough to be transparent on most material and most equipment. Keep the AIFF as your master, because you cannot get back to it from the AMR.

Will my track titles and album art survive the AIFF to AMR conversion?

Not intact. AIFF carries a proper metadata block, but AMR has no standard place for artist, album, track number or cover art, so tags are dropped rather than mangled. Keep the AIFF as the tagged copy, or re-tag afterwards with a tool like Mp3tag or MusicBrainz Picard. AMR destroys music: its 8 kHz bandwidth removes everything above telephone frequencies, and no amount of re-encoding brings it back.

What happens to multichannel audio when converting AIFF to AMR?

It is folded down to stereo, because AMR has no practical multichannel mode. The downmix uses the standard coefficients so centre-channel dialogue stays clear and the surrounds are mixed in at reduced level. Anything that depended on discrete channel placement is gone once that happens.

Why does music sound so poor in this conversion?

Because one side of it is a speech codec rather than a music codec. It models the human vocal tract and discards everything outside telephone bandwidth, which is fine for a voice memo and destructive for anything with instruments in it. Converting away from it cannot restore the missing frequencies — they were never encoded in the first place. AIFF is as large as WAV with worse support outside the Apple world, so it is a poor choice for distribution.

What bitrate will the resulting AMR file use?

Default is 192 kbps for lossy AMR; pass-through for lossless AMR. Override to 320 kbps for audiophile or 96 kbps for voice / podcast. The choice trades file size against audible fidelity; below 96 kbps lossy artifacts become noticeable on music.

Will going from AIFF to AMR reduce my audio quality?

If AIFF is lossy and AMR is lossless (e.g. MP3 → WAV), the AMR is no better than the AIFF — you cannot recover information already discarded. If AIFF is lossless and AMR is lossy, the AMR codec recompresses; at 192 kbps the result is transparent for most content.

Does the AIFF to AMR converter keep ID3 / metadata tags?

Yes — title, artist, album, year, track number, and album art are read from the AIFF container and written into the AMR container where the format supports tags. All common targets (MP3, AAC, FLAC, OGG) handle tags fine; raw WAV does not. AMR is Adaptive Multi-Rate, the speech codec 3GPP standardised for GSM voice calls and mobile voice recorders.

Can I batch convert hundreds of AIFF files to AMR?

Yes — drop a folder of AIFF files in and we process them in parallel. Premium has more parallel workers and no per-file size cap, so a 500-file batch finishes in minutes rather than tens of minutes.

Will the AMR keep the same sample rate as AIFF?

By default yes — 48 kHz AIFF stays 48 kHz in AMR. If you need to downsample for compatibility (96 kHz → 44.1 kHz for CD burning), the sample-rate option applies high-quality resampling in the same encode pass.

Can I normalize loudness when converting AIFF to AMR?

Yes — the loudness-normalize option applies ITU-R BS.1770 / EBU R128 normalization to the AMR, targeting -14 LUFS (streaming standard) or -16 LUFS (podcast standard). Useful when batching tracks mastered at varying levels.

Will my AMR play on car stereo, iPod, and Sonos?

MP3 plays everywhere. AAC plays on Apple, most Android, and Sonos. FLAC plays on Sonos and Android but not on older iPods. WAV plays on everything but is huge. The advanced device-preset dropdown picks an AMR codec optimized for your target hardware. AMR makes voice recordings absurdly small — an hour of speech fits in a few megabytes — and it is what many phones still record calls in.

AIFF

AIFF (Audio Interchange File Format) is an uncompressed audio file format commonly used in professional audio and music production.

AMR

AMR (Adaptive Multi-Rate) is an audio compression format optimized for speech coding. It is commonly used in mobile phones for voice recordings and audio playback.