Corrupted .aup3 project (2.56GB DJ set) – sqlite3.rc:11 / SampleBlocks issue

[tatocando69]

Hello,

I need help recovering an Audacity project.

System:

• Audacity: 3.7.5

• Windows 10 (22H2)

Project information:

• File type: .aup3

• File size: 2.56 GB

• Recording type: Single stereo DJ set recording (~1 hour)

• No multiple tracks or complex editing

Error in Audacity:
sqlite3.rc: 11
SqliteSampleBlock::Load::step
“Audacity failed to read from a file”

What I tried:

• Reinstalled Audacity

• Opened project with DB Browser for SQLite

• PRAGMA integrity_check initially completed without obvious errors

• sampleblocks table exists and block IDs go up to 2602

• Around blocks 2327–2449 fail when read

• VACUUM INTO returns:
  “database disk image is malformed”

I was able to extract raw sample blocks with Python, but resulting WAV files are corrupted (wrong duration, heavy distortion/noise).

The original .aup3 file still opens in DB Browser and appears partially readable.

Could someone help me recover or extract the audio from this project?

Thank you.

[tatocando69]

Thank you very much for being willing to help.

I did not use Audacity Project Tools specifically. I only used Python scripts and DB Browser for SQLite to inspect the .aup3 file and attempt extraction.

What I found:

• The .aup3 file is 2.56 GB

• DB Browser opens the file

• sampleblocks table exists (up to blockid 2602)

• Around blocks 2327–2449 fail when read

• VACUUM INTO returns “database disk image is malformed”

• I was able to extract raw sample blocks with Python, but the resulting WAV had incorrect duration and severe distortion

The recording is a single stereo DJ set (~1 hour), not a multitrack project.

I still have the original untouched .aup3 file.

[evilmrb]

I managed to do some kind of recovery using the Audacity project tools and another utility but it did have missing bits of audio.