audio glitches in tracks ripped from CD

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Re: audio glitches in tracks ripped from CD

by Teknojnky » Tue Mar 30, 2010 7:37 pm

there are no plugins to make using EAC with mm easier, but you can use folder monitoring to watch the eac rip folder then use auto-organize to move them into your library.

mm is great for general tagging/management purposes, but I use musicbrainz picard tagger to have consistent metadata and pull amazon art and last.fm tags all in one shot, then use mm to otherwise clean up anything remaining and add lyrics then organize into my library.

Re: audio glitches in tracks ripped from CD

by huge » Tue Mar 30, 2010 6:12 pm

Teknojnky wrote:analyze volume only adds the replaygain tags, level volume changes the audio so its possible that is the cause.

MM is not a 'secure' ripper nor currently supports accurate rip. If you plan on ripping a bunch of cd's and are already familiar with eac, I would recommend keep using eac to rip, then use MM to manage the ripped files.

When MM 4 is released, it should support accurate rip verification (but I don't know if it will support 'secure' ripping).

Personally, I use dbpoweramp r13 reference to rip, musicbrainz picard to tag (tags/art/last.fm genres) and MM to manage and playback.
thanks - sounds like using EAC will be the way to go for me. What are the benefits of those other softwares? I think of EAC as being the best ripper and I thought MM was the best tagger, but obviously I'm no expert. Is musicbrainz better than MM at dealing with album art?

Re: audio glitches in tracks ripped from CD

by huge » Tue Mar 30, 2010 5:55 pm

update #1 ...

I deleted the files from my library (and Hard Drive) and re-ripped the CD. There are still glitches around the same spot, but they're slightly different. So I assume there's something wrong at that physical spot on the surface of the CD that is making it hard to rip.

The question is ... how can I get MM to alert me if it has trouble ripping a track cleanly, and/or to keep retrying a sector of a CD until it gets it right?



update #2 ... curiouser and curiouser ...

I tried ripping the track with EAC, and I got a sync error (but not a read error, which would be more serious) at a *different* spot on the same track. I did notice EAC struggling slightly (error correction lights flash briefly and the process slows down) at approximately the point where the glitch occurs in the MM-ripped track. So clearly there is a defect on the CD around that track, and MM has trouble at one spot and EAC has more trouble at another. BUT ... the track that EAC rips has no audible glitch (to my ears anyway) either at the MM-glitch-point or at the EAC-sync-error point. I ran EAC's "correct glitches" process, and it reported something like 100 glitches that it corrected, which is normal for a small CD scratch that produces a sync error, but again ... I couldn't hear anything wrong with the audio either before or after the "correction".



So I'm less concerned that I'm going to end up with glitches all over the place if I rip my CD collection into MM, since there is clearly a defect on this particular disc, which hopefully is not true of my entire collection. But I'm still worried that MM didn't even realize that it ran into a problem on the disc, and created an mp3 file with a glitch/dropout.

I'm guessing there's no way to make MM as good/careful as EAC in ripping CD's, correct? Is there a plugin or an easy way to make EAC work with MM to rip tracks to the library?

Re: audio glitches in tracks ripped from CD

by Lowlander » Tue Mar 30, 2010 5:42 pm

Does it happen on all CD's? I've had CD's that had some form of copyright protection that would result in sound artifacts.

Anyway EAC would be the way to go in this case for ripping.

Re: audio glitches in tracks ripped from CD

by Teknojnky » Tue Mar 30, 2010 5:36 pm

analyze volume only adds the replaygain tags, level volume changes the audio so its possible that is the cause.

MM is not a 'secure' ripper nor currently supports accurate rip. If you plan on ripping a bunch of cd's and are already familiar with eac, I would recommend keep using eac to rip, then use MM to manage the ripped files.

When MM 4 is released, it should support accurate rip verification (but I don't know if it will support 'secure' ripping).

Personally, I use dbpoweramp r13 reference to rip, musicbrainz picard to tag (tags/art/last.fm genres) and MM to manage and playback.

audio glitches in tracks ripped from CD

by huge » Tue Mar 30, 2010 5:26 pm

I'm on my second day with MM, so please pardon my newbiness...

I've ripped a few CD's to my library and sync'd them to my iPod. I was just listening to one and heard obvious glitches (audio cuts out for a tiny moment) that are clearly reproducible, and clearly not present on the CD, which is not new, but not scratched either. The glitches are there both when I play the track on my iPod and on my desktop with MM. I didn't get any error messages when I ripped the CD.

That makes me worried about embarking on the process of ripping hundreds of CD's to my media library. My plan was to rip some songs to mp3 and some to FLAC, depending on how much I care about them. But I don't want to spend a bunch of time doing that and then find out that I have little glitches all over the place.

I have ripping options set to analyze/equalize volume on ripped tracks. Could that have caused the problem?

What can I do to make MM rip tracks more securely? I'm used to using Exact Audio Copy, which will warn me if it has trouble ripping a track - is there a way to set up MM like that, or possibly to just use EAC for my CD ripping?

thanks for any advice you can provide

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