Subscribe to AfterDawn's weekly newsletter.
musepack
#1
27 Jun 2002 @ 7:25
p0wder
Inactive
I was reading another thread in here conscerning musepack so I decided to give it a try. I have been making some .wav's and .mp3's to compare the .mpc's to, but I have run into some errors on certain files. These are the syntax's I used followed by their errors.
mppenc --standard
WARNING:
There occured 9 internal clippings due to a restriction of StreamVersion 7. Re-encode with '--scale 0.945', or use option '--xlevel', which normally can handle this situation but don't work well with old decoders.
mppenc --standard --xlevel
WARNING:
There still occured 1 SCF clippings due to a restriction of StreamVersion 7. Use the '--scale' method to avoid distortions.
mppenc --standard --scale 0.945
no errors
Can anyone kindly explain these? :)
mppenc --standard
WARNING:
There occured 9 internal clippings due to a restriction of StreamVersion 7. Re-encode with '--scale 0.945', or use option '--xlevel', which normally can handle this situation but don't work well with old decoders.
mppenc --standard --xlevel
WARNING:
There still occured 1 SCF clippings due to a restriction of StreamVersion 7. Use the '--scale' method to avoid distortions.
mppenc --standard --scale 0.945
no errors
Can anyone kindly explain these? :)
AfterDawn
Advertisement
#2
27 Jun 2002 @ 11:09
Hi!
Yep, it is a known thing. It may happen when the original audio is badly clipped (i.e. when the recorded audio was made so much louder that its max amplitude exceeded the cd limit of 32767 and so it was clipped).
In such case, due to certain format limitations, the current mpc "stream version" SV7 will produce "internal clipping" error. (It may be or may not be actually audiable.) The --scale switch scales the input wav to resolve the problem.
There will be no more "internal clipping" errors in the upcoming mpc SV8. (maybe later this year...who knows...)
P.S. --xlevel switch is obsolete and not recommended.
Yep, it is a known thing. It may happen when the original audio is badly clipped (i.e. when the recorded audio was made so much louder that its max amplitude exceeded the cd limit of 32767 and so it was clipped).
In such case, due to certain format limitations, the current mpc "stream version" SV7 will produce "internal clipping" error. (It may be or may not be actually audiable.) The --scale switch scales the input wav to resolve the problem.
There will be no more "internal clipping" errors in the upcoming mpc SV8. (maybe later this year...who knows...)
P.S. --xlevel switch is obsolete and not recommended.
This message has been edited since its posting. Latest edit was made on 27 Jun 2002 @ 11:11
This discussion thread has been automatically closed, as it hasn't received any new posts during the last 180 days. This means that you can't post replies or new questions to this discussion thread.
If you have something to add to this topic, use this page to post your question or comments to a new discussion thread.
If you have something to add to this topic, use this page to post your question or comments to a new discussion thread.
