Sample AAC 50MB File
AAC — efficient lossy audio
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Download 50MB AAC50 MBTestFile-aac-50mb.aac
File details
| Format | AAC |
| Extension | .aac |
| MIME type | audio/aac |
| Size | 50 MB |
| Exact bytes | 52,428,800 |
| Filename | TestFile-aac-50mb.aac |
| Format version | AAC-LC / ADTS — ISO 14496-3 |
| Contents | 440 Hz sine tone, ~55 min; AAC-LC 128 kbps; stereo; 44.1 kHz; ADTS container |
| Encoding | AAC-LC profile; 128 kbps CBR; 44,100 Hz; stereo; ADTS framing; ~143,000 frames |
What is a 50MB AAC file useful for?
A 50 MB AAC file at 128 kbps provides approximately 55 minutes of audio — a full podcast episode, a long-form radio programme, or a complete audio book chapter. Use it to verify that large audio uploads are handled via multipart upload, that async transcoding pipelines handle long-duration AAC correctly, and that your CDN's range request support allows 55 minutes of audio to be seeked without buffering from the start.
What's inside this file?
Generated by ffmpeg. A 440 Hz sine tone approximately 55 minutes long at 44.1 kHz, stereo, AAC-LC 128 kbps ADTS. Contains approximately 143,000 ADTS frames. Full decode would produce approximately 580 MB of PCM float32 data — always use streaming decode for audio processing pipelines handling long AAC files.
Download via curl
curl -L "http://localhost:8000/files/aac/TestFile-aac-50mb.aac" \ -o TestFile-aac-50mb.aac
Need different parameters?
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