Step 1: Provide your AMR files using the button above or by toss and let go.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Fetch your converted AIFF files.
AMR to AIFF Conversion FAQ
How do I convert AMR audio to AIFF without losing quality?
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Upload the AMR file and the converter chooses the AIFF codec / bitrate combination that matches the source profile. Lossless AIFF (WAV / FLAC / ALAC) preserves every sample exactly; lossy AIFF (MP3 / AAC / OGG / Opus) defaults to 192 kbps which is transparent for almost all music content. 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. AIFF stores uncompressed big-endian PCM — the Apple-side equivalent of WAV, with the same bit-for-bit fidelity.
Does converting AMR to AIFF improve the audio quality?
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No, and it is worth being blunt: nothing can. The AMR already discarded detail during its original encode, and wrapping what remains in a lossless AIFF preserves exactly that — no more. The file gets several times larger and sounds identical. It is still the right move before editing, because AIFF will not add a second generation of artefacts when you export. AIFF is the studio interchange format on macOS, handles metadata better than plain WAV, and imports into Logic and Pro Tools instantly. AMR destroys music: its 8 kHz bandwidth removes everything above telephone frequencies, and no amount of re-encoding brings it back.
Can I tag the AIFF with artist and album information?
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Yes, and it is a genuine gain over AMR, which has nowhere dependable to store any of it. AIFF carries title, artist, album, year, track number and embedded cover art in the container itself, so a music library files it correctly without a manual pass.
Will the AIFF play in my car or on older hardware?
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Often not. AMR is decoded by essentially everything, including car head units and elderly players; AIFF needs software that knows the codec, which standalone hardware frequently does not have. If the destination is a car stereo or a portable player, that is a strong argument for staying on AMR. AIFF is as large as WAV with worse support outside the Apple world, so it is a poor choice for distribution.
Why does music sound so poor in this conversion?
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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.
What bitrate does the AIFF file end up at?
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Default 192 kbps for lossy AIFF; pass-through for lossless AIFF. Override to 320 kbps if you want maximum lossy fidelity, 128 kbps for size-constrained podcast distribution, or 96 kbps for voice-only sources where the smaller file matters more than studio detail.
Will going from AMR to AIFF actually reduce my audio quality?
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If AMR is lossy (MP3, AAC) and AIFF is lossless (WAV, FLAC), the AIFF is no better than the AMR — you cannot recover information already discarded by the lossy AMR codec. If AMR is lossless and AIFF is lossy, expect the AIFF encoder to recompress; at 192 kbps the loss is imperceptible to most ears.
Does the AMR to AIFF converter keep ID3 / metadata tags?
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Yes — title, artist, album, year, track number, album art, BPM, replay-gain are read from the AMR container and written into the equivalent fields on the AIFF container. ID3v2 (MP3), Vorbis comments (OGG, FLAC), MP4 atoms (AAC, M4A), RIFF INFO (WAV), iXML chunks all map cleanly. AIFF is Apple’s Audio Interchange File Format from 1988, built on the same IFF chunk design as AVI’s RIFF.
Can I batch-convert hundreds of AMR files into AIFF?
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Yes — drop a folder of AMR 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. Folder structure is preserved in the output ZIP.
Will the AIFF keep the same sample rate as the AMR?
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By default yes (a 48 kHz AMR produces 48 kHz AIFF, a 44.1 kHz AMR produces 44.1 kHz AIFF). For specific compatibility — e.g. downsampling 96 kHz studio masters to 44.1 kHz AIFF for CD burning, or upsampling 22 kHz voicemail to 44.1 kHz AIFF — the sample-rate dropdown applies high-quality SOX-style resampling.
Can I normalize loudness in the AMR to AIFF step?
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Yes — the loudness-normalize option applies ITU-R BS.1770 / EBU R128 normalization to the AIFF output, targeting -14 LUFS (streaming standard) or -16 LUFS (podcast standard) or a custom value. Useful when batch-converting tracks with varying mastering levels into a single AIFF playlist.
Will the AIFF play on my car stereo / iPod / Sonos / Bluetooth speaker?
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MP3 plays universally on every device made in the last 20 years. AAC plays on Apple, most Android, Sonos, and modern car stereos. FLAC plays on Sonos and recent Android, less well on older iPods. WAV plays on everything but the file is huge. The device-target dropdown picks a safe AIFF codec for the platform you specify.
