Sample MP3 1MB File
MP3 audio — 192 kbps, tone or sweep
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Download 1MB MP31 MBTestFile-mp3-1mb.mp3
File details
| Format | MP3 |
| Extension | .mp3 |
| MIME type | audio/mpeg |
| Size | 1 MB |
| Exact bytes | 1,048,576 |
| Filename | TestFile-mp3-1mb.mp3 |
| Format version | MPEG-1 Layer 3 (MP3), 128 kbps CBR |
| Contents | 440 Hz sine tone, ~65 s; 128 kbps CBR; stereo; 44.1 kHz; no ID3 metadata |
| Encoding | MPEG-1 Layer 3, 128 kbps CBR; stereo joint encoding; 44.1 kHz |
What is a 1MB MP3 file useful for?
A 65-second, 128 kbps MP3 is representative of a short podcast segment, a background music clip, or an audio preview. Use it to test full audio upload processing: waveform image generation, metadata extraction (duration, bitrate, sample rate), audio transcoding to AAC or Opus for streaming delivery, and pre-signed URL generation for CDN delivery. At 65 seconds it is long enough to test seek-by-click in audio players and waveform scrubbing accuracy.
What's inside this file?
Generated by ffmpeg. A 440 Hz sine tone approximately 65 seconds long at 128 kbps CBR, stereo, 44.1 kHz. At CBR 128 kbps, the bit budget is constant — the sine tone is extremely redundant and compresses well in AAC or Opus but not in MP3's fixed-bitrate mode, so the file is exactly 128 kbps throughout. No ID3 metadata tags.
Download via curl
curl -L "http://localhost:8000/files/mp3/TestFile-mp3-1mb.mp3" \ -o TestFile-mp3-1mb.mp3
Need different parameters?
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