Cut FLAC Audio

How to Cut FLAC Audio

1. Upload Your FLAC File — Click "Choose Files" or drag and drop your FLAC audio file. Only .flac files are accepted.
2. Set Cut Points — Under Trim, select "Trim" and enter a Start Time and Duration in seconds or HH:MM:SS.sss format to extract the segment you want to keep.
3. Adjust Compression Level (Optional) — Under Compression Level, set a value from 1 (fastest, largest file) to 12 (slowest, smallest file). Default is 12 (maximum compression).
4. Adjust Audio Settings (Optional) — Under Audio Codec, the default is FLAC. Set Audio Channel to Original, Mono, or Stereo. Change Audio Sample Rate from 8000 Hz through 48000 Hz.
5. Cut & Download — Click "Convert" and download your cut FLAC file.

Why Cut FLAC Audio?

FLAC (Free Lossless Audio Codec) preserves audio without any quality loss. Cutting FLAC files is useful for extracting a specific track from a long lossless recording, removing silence or unwanted sections from the beginning or end, splitting live concert recordings or DJ sets into individual tracks, creating audio samples from lossless source material, and reducing file size by removing unnecessary portions while keeping lossless quality.

FLAC Compression Level Guide

Level	Speed	File Size	Best For
1	Fastest	Largest	Quick processing
5	Balanced	Medium	General use
8	Slow	Smaller	Storage efficiency
12 (default)	Slowest	Smallest	Maximum compression

Note: All compression levels are lossless — audio quality is identical regardless of level. Only encoding speed and file size differ.

Common Cut Scenarios

Goal	Start Time	Duration
Remove 5s silence at start	00:00:05	(remaining length)
Extract a 4-minute track	00:03:00	00:04:00
Keep first 30 seconds	00:00:00	00:00:30

Why is the File Compression section not available?

FLAC is a lossless format — bitrate-based compression methods (Quality Preset, Constant Bitrate, etc.) are hidden because they don't apply to lossless encoding. Instead, use the Compression Level setting (1-12) which controls how aggressively the lossless algorithm compresses the data. All levels produce identical audio quality.

What is the difference between Cut and Trim?

On XConvert, "Cut" and "Trim" both extract a segment from audio using Start Time and Duration. The Trim FLAC page provides the same functionality with identical options.

Will cutting reduce audio quality?

No. FLAC is lossless — the cut output contains the exact same audio data as the original, just shorter. The Compression Level setting only affects file size and encoding speed, not audio quality.

Can I cut and change channels at the same time?

Yes. Under Audio Channel, switch between Original, Mono, and Stereo. Converting stereo to mono halves the file size. This is applied along with the cut in a single pass.

What is the difference between Compression Level 1 and 12?

Both produce identical audio quality (lossless). Level 1 encodes faster but produces a larger file. Level 12 (default) takes longer but produces the smallest possible FLAC file. The difference is typically 5-15% in file size.