Sample FLAC 100KB File
FLAC — lossless compressed audio
Click below for an instant download — no signup, no redirect.
Download 100KB FLAC100 KBTestFile-flac-100kb.flac
File details
| Format | FLAC |
| Extension | .flac |
| MIME type | audio/flac |
| Size | 100 KB |
| Exact bytes | 102,400 |
| Filename | TestFile-flac-100kb.flac |
| Format version | FLAC (Free Lossless Audio Codec) 1.3 |
| Contents | 440 Hz sine tone, ~4 s; 44.1 kHz, 16-bit, stereo; FLAC lossless; fLaC stream marker + STREAMINFO |
| Encoding | FLAC lossless compression (LPC); 44,100 Hz; 16-bit; stereo; ~8:1 ratio on sine content |
What is a 100KB FLAC file useful for?
A 100 KB FLAC file is the right size for testing FLAC decoder integration, MIME type detection (audio/flac or audio/x-flac), and stream marker validation (fLaC magic bytes). At ~4 seconds it is short but structurally complete — containing the fLaC stream marker, STREAMINFO metadata block, and audio frame data. Use it to verify that your audio pipeline correctly identifies lossless audio and does not attempt to play it as MP3 or WAV.
What's inside this file?
Generated by ffmpeg. A 440 Hz sine tone approximately 4 seconds long at 44.1 kHz, 16-bit, stereo. FLAC encodes PCM audio with a linear predictive coding (LPC) model — for a pure sine wave the predictor is near-perfect, achieving approximately an 8:1 compression ratio vs raw PCM. The file begins with the 4-byte fLaC stream marker (0x66 0x4C 0x61 0x43) followed by a STREAMINFO block containing sample rate, bit depth, channels, and total sample count.
Download via curl
curl -L "http://localhost:8000/files/flac/TestFile-flac-100kb.flac" \ -o TestFile-flac-100kb.flac
Need different parameters?
Generate a custom FLAC file with exact settings.