Step 1: Drop your AMR files using the button above or by deposit and leave.
Step 2: Click the 'Convert' button to start the conversion.
Step 3: Receive your converted AIFF files.
AMR to AIFF Conversion FAQ
How do I convert AMR audio to AIFF without quality loss?
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Upload the AMR file and our converter chooses the AIFF codec / bitrate combination that matches the source. Lossless target (AIFF = WAV / FLAC / ALAC) preserves every sample; lossy target (AIFF = MP3 / AAC / OGG) defaults to 192 kbps which is transparent for spoken-word audiobooks and most music.
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 use?
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Default is 192 kbps for lossy AIFF; pass-through for lossless AIFF. Override to 320 kbps for audiophile or 64-96 kbps for spoken-word audiobooks (transparent for voice, halves the file size).
Will going from AMR to AIFF reduce my audio quality?
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If AMR is lossy and AIFF is lossless (e.g. MP3 → WAV), the AIFF file is no better than the AMR — you can't recover information that's already been thrown away. If AMR is lossless and AIFF is lossy, expect the AIFF codec to recompress; at 192 kbps this is transparent for most content.
Does the AMR to AIFF converter keep ID3 / metadata tags?
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Yes — title, artist, album, year, track number, album art, and chapter markers (important for audiobooks) are read from AMR and written into the AIFF container where the AIFF format supports tags. M4B audiobook structure round-trips into M4B and AAX → M4B output.
Can I batch convert hundreds of AMR files to 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.
Will the AIFF keep the same sample rate as AMR?
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By default yes (48 kHz AMR → 48 kHz AIFF). If you need to downsample for compatibility (e.g. 96 kHz → 44.1 kHz for CD burning) the advanced sample-rate option does this with high-quality 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), -16 LUFS (podcast standard), or -23 LUFS (audiobook standard). Useful when batch-converting tracks with varying mastering levels.
Will the AIFF play on my car stereo / iPod / audiobook app?
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MP3 plays universally. AAC plays on Apple, most Android, Sonos. FLAC plays on Sonos and Android, less well on older iPods. M4B audiobooks play with chapter navigation on iOS Books, Audiobookshelf, and Smart Audiobook Player. The advanced options include device presets.
