Clicks from decoding flac files

[Perry Justus]

Hi, I don't know if this is exactly the right newsgroup, but I'll give
it a shot:

I recently discovered that all the identical loud clicks on my cd-rs
are not because of bad discs or a faulty burner, as I had previously
assumed; they all have something to do with the flac decoding process.

I'll decode the flac files and there's seemingly always at least one
piercingly loud click resulting in the loss of 256 samples (according
to EAC), even though it doesn't give me any indication of possible
errors when the files were decoded (and I don't allow for decoding
through errors).

Is this an issue with the decoding software, or perhaps a computer
memory-related issue? Until I know for sure, all my new music encoded
with flac will be burned to data discs instead of decoded to wavs,
because the clicks aren't there in the original flacs...

One thing I don't get is that, when I rip the audio from a newly
created audio disc, it displays the error in the wav comparison, but
the sample loss is in the original wav. How would EAC notice the loss
of data if they're in both the original and the burned/ripped track?

Thanks,

Perry

[Richard Crowley]

"Perry Justus" wrote ...
> Hi, I don't know if this is exactly the right newsgroup, but I'll give
> it a shot:
>
> I recently discovered that all the identical loud clicks on my cd-rs
> are not because of bad discs or a faulty burner, as I had previously
> assumed; they all have something to do with the flac decoding process.
>
> I'll decode the flac files and there's seemingly always at least one
> piercingly loud click resulting in the loss of 256 samples (according
> to EAC), even though it doesn't give me any indication of possible
> errors when the files were decoded (and I don't allow for decoding
> through errors).
>
> Is this an issue with the decoding software, or perhaps a computer
> memory-related issue? Until I know for sure, all my new music encoded
> with flac will be burned to data discs instead of decoded to wavs,
> because the clicks aren't there in the original flacs...
>
> One thing I don't get is that, when I rip the audio from a newly
> created audio disc, it displays the error in the wav comparison, but
> the sample loss is in the original wav. How would EAC notice the loss
> of data if they're in both the original and the burned/ripped track?

When I compressed a bunch of WAV files with FLAC a
few months ago, the utility did the compression and then
decoded it back and compared it with the original to
confirm lossless compression/recovery.

[Paul Stamler]

"Perry Justus" > wrote in message
...

> I recently discovered that all the identical loud clicks on my cd-rs
> are not because of bad discs or a faulty burner, as I had previously
> assumed; they all have something to do with the flac decoding process.
>
> I'll decode the flac files and there's seemingly always at least one
> piercingly loud click resulting in the loss of 256 samples (according
> to EAC), even though it doesn't give me any indication of possible
> errors when the files were decoded (and I don't allow for decoding
> through errors).

What software are you using to decode the flac files? I've used the original
flac software and had nary a pop.

Peace,
Paul

[Perry Justus]

On Wed, 31 Jan 2007 17:16:42 GMT, "Paul Stamler"
> wrote:

>"Perry Justus" > wrote in message
...
>
>> I recently discovered that all the identical loud clicks on my cd-rs
>> are not because of bad discs or a faulty burner, as I had previously
>> assumed; they all have something to do with the flac decoding process.
>>
>> I'll decode the flac files and there's seemingly always at least one
>> piercingly loud click resulting in the loss of 256 samples (according
>> to EAC), even though it doesn't give me any indication of possible
>> errors when the files were decoded (and I don't allow for decoding
>> through errors).
>
>What software are you using to decode the flac files? I've used the original
>flac software and had nary a pop.
>
>Peace,
>Paul
>

I'm using the frontend that comes bundled with the official flac
installer.

Perry

[Perry Justus]

On Wed, 31 Jan 2007 06:04:47 -0800, "Richard Crowley"
> wrote:

>"Perry Justus" wrote ...
>> Hi, I don't know if this is exactly the right newsgroup, but I'll give
>> it a shot:
>>
>> I recently discovered that all the identical loud clicks on my cd-rs
>> are not because of bad discs or a faulty burner, as I had previously
>> assumed; they all have something to do with the flac decoding process.
>>
>> I'll decode the flac files and there's seemingly always at least one
>> piercingly loud click resulting in the loss of 256 samples (according
>> to EAC), even though it doesn't give me any indication of possible
>> errors when the files were decoded (and I don't allow for decoding
>> through errors).
>>
>> Is this an issue with the decoding software, or perhaps a computer
>> memory-related issue? Until I know for sure, all my new music encoded
>> with flac will be burned to data discs instead of decoded to wavs,
>> because the clicks aren't there in the original flacs...
>>
>> One thing I don't get is that, when I rip the audio from a newly
>> created audio disc, it displays the error in the wav comparison, but
>> the sample loss is in the original wav. How would EAC notice the loss
>> of data if they're in both the original and the burned/ripped track?
>
>When I compressed a bunch of WAV files with FLAC a
>few months ago, the utility did the compression and then
>decoded it back and compared it with the original to
>confirm lossless compression/recovery.

That's ideal, but most of the files that I download don't have
checksums of the original wavs. :-/

Perry

[Richard Crowley]

"Perry Justus" wrote ...
> That's ideal, but most of the files that I download don't have
> checksums of the original wavs. :-/

Ahhh, so these are FLAC files that other people encoded and you
downloaded? I don't believe you mentioned that before.

What to the people who created the files say? Or what do others
who have downloaded and decompressed those same files say?

[Perry Justus]

On Wed, 31 Jan 2007 15:22:40 -0800, "Richard Crowley"
> wrote:

>"Perry Justus" wrote ...
>> That's ideal, but most of the files that I download don't have
>> checksums of the original wavs. :-/
>
>Ahhh, so these are FLAC files that other people encoded and you
>downloaded? I don't believe you mentioned that before.
>
>What to the people who created the files say? Or what do others
>who have downloaded and decompressed those same files say?

I haven't asked, but no one else has brought it up. I even
re-downloaded one file to see if the click was there, and it wasn't...
and when I decoded it, it still wasn't there. I'm not sure exactly
what's going on.

Perry