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Topic: Padding out errors with silence (Read 4961 times) previous topic - next topic
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Padding out errors with silence

I have a few flac files with LOST_SYNC errors. They decode a fraction of a second shorter  and can't be fixed by CTDB.
I was thinking if the errors were padded with silence there might be a chance to fix them. Is this possible?

Padding out errors with silence

Reply #1 –
It's possible to pad the lost data so that all data present and the track decodes to the correct length so that the album can be recognized by the database.  I don't know if the database contains enough redundancy to fix the missing data, however.

Padding out errors with silence

Reply #2 –
Quote from: greynol on
It's possible to pad the lost data so that all data present and the track decodes to the correct length so that the album can be recognized by the database.  I don't know if the database contains enough redundancy to fix the missing data, however.

Is there a special too for this? Flac.exe and foobar2000 gives me the result I mentioned in OP.

Padding out errors with silence

Reply #3 –
I would use CEP/Audition, myself.  Any decent wave editor may work, but one that does a good job visually rendering the waveform will make it easier to spot where the good data ends.

Padding out errors with silence

Reply #4 –
I was able to repair such flac files a few times by recoding them to new flac files with the foobar2000 converter. Although the converter was complaining about errors in the source the files, the recoded files could be successfully repaired with CUETools afterwards.

Padding out errors with silence

Reply #5 –
Quote from: greynol on
I would use CEP/Audition, myself.  Any decent wave editor may work, but one that does a good job visually rendering the waveform will make it easier to spot where the good data ends.

+1. I have done this in Audacity a couple of times. Far from the ideal fix, but it does the job.

Padding out errors with silence

Reply #6 –
Quote from: greynol on
I would use CEP/Audition, myself.  Any decent wave editor may work, but one that does a good job visually rendering the waveform will make it easier to spot where the good data ends.

Ok, I figured as much. Lucky I found Auditotester by VU player that at least gives a time point for the error.