Archived copy.
This page was recovered from the Internet Archive snapshot of
/display/SP/LSDRT5 Detecting audio files with very bad sound quality taken on 2016-09-11.
The original wiki at wiki.opf-labs.org is being decommissioned.
LSDRT5 Detecting audio files with very bad sound quality
Collection:
Unable to render {include} Couldn't find a page to include called: mp3 (128kbit) with Danish Radio broadcasts
Issue:
| Title |
IS20 Detect audio files with very bad sound quality |
| Detailed description | In a collection of mp3 files (20 Tbytes - 360.000 files) we have discovered files with very bad sound quality. Before ingesting everything into our DOMS we would like to be able to discover the bad files and potentially get those re-digitized from the original analogue media. |
| Scalability Challenge |
Large amounts of data (20 Tbytes - 360.000 files). We foresee that the process needed to solve this will require both I/O intensive work as well as heavy use of CPU for analysing the actual content. |
| Issue champion | Bjarne Andersen (SB) |
| Other interested parties |
|
| Possible Solution approaches |
|
| Context | |
| Lessons Learned | |
| Training Needs | |
| Datasets | mp3 (128kbit) with Danish Radio broadcasts |
| Solutions |
Evaluation
| Objectives | This issue is primarily about
|
| Success criteria | When this issue is solved we will be able to scan through all files in our repository and automatically detect files with bad quality. |
| Automatic measures | Speed is not really important for this issue since this is a one time only job. Can't take years off cause. 1. Process 20 files per hour per node |
| Manual assessment | 1. Non of the detected files are false positives (don't have bad sound quality) |
| Actual evaluations | links to acutual evaluations of this Issue/Scenario |