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Oma To Any Format

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physya

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I don't have a player (yet) - just ordered. I am new to Hi-md, so I might be discovering something well-known.

Anyway, I made OMA files using SonicStage3.1 converting from WMA and MP3 to 256 kbps and 132 kbps ATRAC files (pretending that I am making the ATRAC CD).

None of the other sound editors could read those files, but Goldwave could. I got it long ago, because it can read Audible files (and convert).

If you think the device files are different - send me an example and I'll try to read it. (And yes, I have a registered full version of the Goldwave - shareware has some limitations)

Your link is correct. You're right that neither OMA, nor Audible import features are advertised. But it does work!.

Attached is a snapshot of the OMA file in Goldwave.

post-9642-1117820078_thumb.jpg

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According to their own forum administrator it cannot be done:

http://goldwave.ca/forums/viewtopic.php?t=603&highlight=oma

So what gives?  huh.gif

Well, check out the image I posted earlier. Maybe OMA files converted on a PC are not protected? Send me a sample of a file downloaded from the player and I'll try to convert it.

As far conversion is concerned it is a complicated topic. It depends on codecs you have installed. For example Goldwave won't read Audible files unless you have Audible manager installed. Same maybe true for OMA and SS. But the fact is - it does work!

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I'll have to try this one out...  I have Goldwave 5.10 myself, but dont ever remember being able to use it with .oma files..    That would definitely be nice to be able to go straight from oma to flac instead of oma>wav>flac...  :)

Well, I think GoldWave does decompresses the OMA file into a temporary uncompressed file, but who cares if it does it all automatically (when converting a batch) w/o leaving any traces (and fast)?

Anyway, please post here if GoldWave worked for you as well.

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Interestingly enough, I was able to get GoldWave to open an OMA file as well! Sorta..

First off, I had to change the open "Files of Type" to "All (*.*)" in order to see any OMA files.. And it only decompressed about half of the file.. Even though it didnt decompress the whole file, what it did decompress played back fine.. At least it's a start... I'm about to do some more experimenting.. biggrin.gif

EDIT: My converted file was ATRAC3Plus 256... What was your original physysa?

Edited by raintheory
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Interestingly enough, I was able to get GoldWave to open an OMA file as well!  Sorta.. 

First off, I had to change the open "Files of Type" to "All (*.*)" in order to see any OMA files..  And it only decompressed about half of the file..  Even though it didnt decompress the whole file, what it did decompress played back fine..  At least it's a start...  I'm about to do some more experimenting..  biggrin.gif

EDIT:  My converted file was ATRAC3Plus 256...  What was your original physysa?

What do you mean half file? If you got XP "program will be closed..." popup - just ignore it - GoldWave will continue (strange, but fact - I had it once with Audible files).

I don't know what format of OMA files I have. I used SS 3.1 and chose the 256 kbps. I think it must be ATRAC3plus (I also tried ATRAC3 at 132 kbs).

I converted a whole CD from WMA to ATRAC and then used GoldWave to batch convert it directly to MP3. The end result was almost identical (qualitywise) to the original.

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What do you mean half file? If you got XP "program will be closed..." popup - just ignore it - GoldWave will continue (strange, but fact - I had it once with Audible files).

I don't know what format of OMA files I have.  I used SS 3.1 and chose the 256 kbps. I think it must be ATRAC3plus (I also tried ATRAC3 at 132 kbs).

I converted a whole CD from WMA to ATRAC and then used GoldWave to batch convert it directly to MP3. The end result was almost identical (qualitywise) to the original.

I didnt get any errors.. The progress gets to about 17% then opens the file... Without finishing the decoding... (only decodes and opens 1min of a 5min song)... Does the same thing for batch encoding too..

I'm going to try a different OMA file and see what happens..

BTW, can you see the OMA files under GoldWave without changing the Files of Type to "All (*.*)" on your system?

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The second file I tried got to 40% and did the same thing... Opening the file before it decompresses it all.. very odd..

It would be interesting to find out exactly which codec GoldWave is using when it opens OMA files... Usually when you try to open a file that isn't supported, it asks for the properties (i.e. PCM Signed 16bit etc.)

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The second file I tried got to 40% and did the same thing...  Opening the file before it decompresses it all..    very odd..

It would be interesting to find out exactly which codec GoldWave is using when it opens OMA files...  Usually when you try to open a file that isn't supported, it asks for the properties (i.e. PCM Signed 16bit etc.)

Wow! - You ARE right! Goldwave actually only opens exactly 1 minute 2 seconds - regardless the format or bitrate of the initial file.

This calls for further investigation...

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Wow! - You ARE right! Goldwave actually only opens exactly 1 minute 2 seconds - regardless the format or bitrate of the initial file.

This calls for further investigation...

That figure reminds me of tests I was doing with Audition, which would record from a Hi-Md connected via USB at faster than realtime - but stopped after a similar amount of time. Maybe some cunning element of Sony's DRM?

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That figure reminds me of tests I was doing with Audition, which would record from a Hi-Md connected via USB at faster than realtime - but stopped after a similar amount of time.  Maybe some cunning element of Sony's DRM?

or it could be a kind of lightly compressed "buffer", so that decoder could read ahead and decode the rest. Then this buffer could be in a recognizible format, whereas the rest is in special ATRACTplus.

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Ha, ha, ha. I thought I was the only one promoting the virtues of that program, Kurisu.

Seriously, folks. Hi-MDRenderer is to Hi-MD what Peanut butter is to chocolate, root beer to vanilla ice cream, and cheese to pizza. Try it. And then make a donation for poor old Marc. I heard he had to code the latest version while walking barefoot on 3 feet of snow. tongue.gif

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Uhm, hello! Have any of you used Marcnet's Hi-MD Renderer? lol

Haha, yes I use it all the time rolleyes.gif (donated as well)..

I don't fully trust the upload to WAV option in SS 3.1, I had issues with the OMA>WAV program Sony had out awhile back because it would split longer files..

Regardless, I am intrigued by this whole science project. One nice feature GoldWave has is an effects chain that you can use in the batch conversion ( Volume adjustments, EQ, Effects, etc. ) which is what peaked my interest in using it to convert OMA files.. I figure that I use GoldWave anyway to edit 90% of my uploaded HiMD recordings, so why not save a step if possible? happy.gif

-aA

EDIT: That barefoot thing w/3 feet of snow was all uphill from what I've heard. wink.gif

Edited by raintheory
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Wow! - You ARE right! Goldwave actually only opens exactly 1 minute 2 seconds - regardless the format or bitrate of the initial file.

This calls for further investigation...

That investigation can be ended here.

Why?

Goldwave apparently uses the Atrac-Directshow-filter included with SonicStage.

That filter has the problem, that it decodes correctly, when playing back at realspeed, but it breaks off the decoding after about one minute when the decoding is done faster than realtime.

Marc ran into the same problem, when designing the HiMDRenderer.

He solved the problem by decoding smaller chunks of the original file and stitching the pieces together.

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