Trim AIFF

How to Trim AIFF Audio Online

1. Upload Your AIFF File: Drag and drop or click "+ Add Files" to load .aiff or .aif audio. Both extensions are accepted — they store the same Apple/IFF-based PCM data. Batch trimming is supported, so multiple files can be processed in the same session.
2. Set Trim Points: Under "Trim," enter a start time (where the kept section begins) and a duration (how many seconds to keep from that point). A 3:30 song trimmed to start at 0:15 with duration 60 keeps from 0:15 to 1:15. Times accept seconds or HH:MM:SS notation.
3. Choose File Compression (Optional): Default is the original AIFF PCM stream. Pick "Quality Preset" (Highest preserves studio fidelity; Medium/Low produce smaller AIFF-C files), or switch to "Constant Bitrate" (e.g., 256 or 320 kbps) when you need a fixed file-size target. Set "Audio Channel" to mono to halve size for voice, or stereo for music. "Audio Sample Rate" defaults to the source rate — keep 44100 Hz for CD masters, 48000 Hz for video audio, 96000 Hz for high-res masters.
4. Trim and Download: Click "Trim." The cut runs in your browser session — no sign-up, no watermark, originals never leave your device unencrypted to a third party.

Why Trim AIFF Files?

AIFF (Audio Interchange File Format) is Apple's uncompressed PCM container, released January 21, 1988 and built on Electronic Arts' IFF chunk format from the Amiga era. A CD-quality stereo track (44.1 kHz / 16-bit) consumes roughly 10 MB per minute, so a 4-minute song lands near 40 MB and a full album easily exceeds 400 MB. Trimming lets you keep only the bytes you actually need before importing into a DAW, sending over email, or archiving to cold storage.

• Logic Pro and GarageBand projects — AIFF is the default lossless capture format on macOS. Trim long takes down to the usable region before importing so the project file stays small and the timeline isn't cluttered with multi-minute regions you'll never play.
• Sampling and beat-making — Producers chopping breaks for SP-404, MPC, Ableton Simpler, or Native Instruments Maschine want the kick or snare hit isolated to a tenth of a second. Trim AIFF straight from the source rather than re-exporting from a DAW.
• Field recording cleanup — Zoom H4n, Tascam DR-40X, and Sound Devices recorders write AIFF or BWF/WAV that a Mac-side editor often converts to AIFF. Trim leading handling noise and trailing room tone before delivery.
• Foley and ADR delivery — Post-production houses still spec uncompressed AIFF for some Apple-pipeline mixers. Trim each take to head/tail beats so the picture editor isn't scrubbing through silence.
• CD prep and replication masters — Disc Description Protocol (DDP) masters are typically built from 16-bit/44.1 kHz files. Trim pre-roll silence and faulty tail seconds so the burned audio matches the intended track length.
• Email and Drive uploads — A 30 MB AIFF rejected by Gmail's 25 MB attachment ceiling becomes a 4 MB clip after a 30-second trim — no need to convert to MP3.

AIFF vs WAV vs FLAC vs ALAC

Property	AIFF	WAV	FLAC	ALAC
Year introduced	1988 (Apple)	1991 (Microsoft/IBM)	2001 (Xiph.Org)	2004 (Apple)
Compression	None (PCM)	None (PCM)	Lossless (~50% smaller)	Lossless (~50% smaller)
Container	IFF (big-endian)	RIFF (little-endian)	Native FLAC	MP4/CAF
Metadata	ID3, native chunks	LIST/INFO, ID3	Vorbis comments	iTunes-style atoms
4-min stereo at 44.1 kHz	~40 MB	~40 MB	~20 MB	~20 MB
Native macOS support	Yes	Yes	macOS 11+	Yes
Native Windows support	Limited	Yes	Windows 10+	Limited
Best for	Mac DAW / archival	Cross-platform DAW	Open-source archival	Apple Music / iOS

File Compression and Sample Rate Quick Guide

Setting	When to keep default	When to change
Quality Preset: Highest	Studio masters, archival, files heading back into Logic Pro	Lower presets only when delivering AIFF-C for size-constrained workflows
Constant Bitrate 256–320 kbps	Voice memos, podcast cuts where lossy AIFF-C is acceptable	Avoid for music masters — switch back to Quality Preset
Audio Channel: Stereo	Music, ambisonic stems, anything mixed in stereo	Switch to mono for voice memos, mono mics, talk-radio cuts (halves size)
Sample Rate: 44100 Hz	CD-bound audio, music streaming targets	48000 Hz for picture (film/TV/YouTube), 88200/96000 Hz for high-res masters

Frequently Asked Questions

Does trimming AIFF re-encode the audio and reduce quality?

If you keep the default Quality Preset on Highest and don't change the sample rate or channel layout, the trimmed output stays uncompressed PCM at the original bit depth and rate. Quality is byte-for-byte equivalent to the kept region. Re-encoding only happens when you switch to Constant Bitrate (which produces lossy AIFF-C) or change the sample rate, in which case the audio is resampled.

What's the difference between .aiff and .aif?

None functionally — both extensions hold the same IFF/AIFF chunk structure. ".aif" is the legacy 3-character extension from classic Mac OS (which truncated extensions); ".aiff" became standard once long extensions were universally supported. Logic Pro, GarageBand, Pro Tools, Reaper, and Audacity treat them identically. The trimmer accepts and outputs either.

Will the trimmed file open in Logic Pro and GarageBand?

Yes. Both Apple DAWs natively read AIFF and AIFF-C. Drag the trimmed file directly into the Tracks area of Logic Pro or GarageBand and it imports as an audio region with no conversion step. Apple's Logic Pro media and file formats reference confirms AIFF support at 16- and 24-bit and sample rates up to 192 kHz.

Should I trim and keep AIFF, or convert to FLAC for archival?

For Mac-only workflows (Logic, GarageBand, Final Cut Pro, Compressor) keep AIFF — every Apple app reads it natively without metadata loss. For cross-platform archival or NAS storage, AIFF to FLAC yields roughly 50% smaller files with identical audio (FLAC is mathematically lossless), and FLAC plays on Windows, Linux, Plex, and most modern hi-fi streamers. ALAC is another option if your library lives in Apple Music — try AIFF to M4A.

Why is my trimmed AIFF still huge?

Uncompressed PCM at CD quality is about 10 MB per minute of stereo. A 60-second trim is therefore ~10 MB minimum, regardless of how short the kept region's silence is — AIFF doesn't pack zeros any tighter than peaks. To get smaller files, either trim shorter, switch to Constant Bitrate (lossy AIFF-C), or use AIFF to MP3 at 192–320 kbps for distribution copies.

Can I trim a 24-bit / 96 kHz high-resolution AIFF?

Yes. The trimmer preserves the source sample rate and bit depth on the output if you leave Audio Sample Rate untouched and keep Quality Preset on Highest. A 24/96 trim stays 24/96. Changing the sample rate dropdown forces a resample, which is fine for distribution copies but should be avoided when trimming a master.

What's the maximum file size I can trim?

The browser-based tool handles AIFF files into the hundreds of megabytes in a single session — sufficient for most music masters and field recordings. For multi-gigabyte multi-hour location recordings, Audio Cutter handles arbitrary length more gracefully thanks to its waveform editor and chunked processing, and it accepts AIFF among other formats.

How do I trim multiple AIFF files in one go?

Drop multiple files in step 1 — each gets its own start and duration. The same compression and channel settings apply to all files in the batch. To apply different trim points per file, run separate sessions, or use a DAW like Logic Pro or Audacity for sample-accurate non-destructive batch editing with markers.

Can I trim ringtones or convert to other formats after?

Trim first to get the exact 30-second window, then if you need an iPhone ringtone use AIFF to M4A (Apple's M4R ringtone is an M4A renamed). For Android or generic phone ringtones, AIFF to MP3 at 192 kbps is widely compatible. The 30-second trim happens at the source AIFF so the encoder isn't compressing audio you'd just throw away.