Recording via optical-in

[mborus]

Hi,

everything I see is kind of a text file (never installed a plugin). What do I have to do to make it run on the H120 ?
What is it supposed to do ?

You are supposed to compile your own rockbox version with this,
or you have to wait if someone compiles one for you.

I tried compiling it following the instructions(*) on the rockbox homepage.

"Digital" appears as a selection for recording source.
When I connect a 44.1 kHz or 48 kHz source, nothing happens.
I can't hear it and when I start a recording anyway, the Iriver tries
to start a recording and freezes.

At least this got me motivated to set up a building environment

----
(*Note: If you never tried this, they are quite good. The only guesswork
I had to do was where to put the files - Patch goes into the rockbox root
directory to work, rockbox source tar file goes into c:\cygwin\home\<USERNAME>)

[hellokitty]

Thanks,

but all I can see is

http://www.pvv.org/~thomj/rockbox/spdif_recording.patch

Is this the patch itself or just an instruction ?

[Llorean]

It's a patch. You apply it to the source code, and then compile.

[mborus]

Thanks,

but all I can see is

http://www.pvv.org/~thomj/rockbox/spdif_recording.patch

Is this the patch itself or just an instruction ?

It's the patch.

See http://www.rockbox.org/twiki/bin/view/Main/DocsIndex

And read the section "For Developers"

Here you need to read:
# First-time guide to Rockbox development.
# Detailed instructions on compiling.
# The simplified guide to compiling.
# How to work with patches.

This is a bit scary, but you can get it to work.
Or just wait a few days...

[sullen]

I did my first ever patch/compile today just so I could check out the Optical Recording.  I am having the same issue as the above poster.  I turn on my Optical source before turning on the iRiver, go to record, select Digital, and the go to the recording screen.  I get no levels at all.  I hit record and the timer starts but still no levels.  I can hit stop and it stops, but freezes after that.  I patched with today's (4/23) source.

[preglow]

There's a new patch at the same URL now. I also just noticed that SPDIF output needs to be on in the playback menu for recording to work. This patch works 100% for me, so I hope for a bigger success rate this time... Feedback is welcome.

[whatboutbob]

Woohoo!  Its very early days but I've recorded two files and they played back fine.

I used a precompiled version which wouldn't intially work for me until I reset .cfg.  Like preglow mentioned you also have to enable optical output (general -> Playback -> Optical Output). Happy testing!

[dwonk]

preglow, thanks so much for the patch!

Anybody point out where to grab the compiled version with preglow's SPDIF patch?

By, reset .cfg, you mean restore the user configurations to default in general setings menu?

[whatboutbob]

I hope preglow doesn't mind me sharing this...but its in the IRC logs anyways...:

http://www.pvv.org/~thomj/rockbox/rockbox.iriver

reset .cfg: Manage Settings > Reset Settings.

[sullen]

Wow, I have learned a lot today!  Did my first patch today and boy was it a good one.  Everything works as described at this point.  I like how you see the size of the file as it is recorded.  It took a bit to actually write the file after I pushed stop.  I only recorded one file just under 3 minutes at 44.1k so far.  Will it be easy to incorporate the other recording functionings to coincide with the Optical recording?  I know nothing about programming but may look at it some for kicks.  Thank you for the patch!  I am sure now that the initial hurdle has been passed, a lot of people will put some attention to the tweaks. 

[LinusN]

Will it be easy to incorporate the other recording functionings to coincide with the Optical recording?

What functions? All the functionality for the analog recording should work for digital as well, except for the gain settings of course.

[mborus]

There's a new patch at the same URL now. I also just noticed that SPDIF output needs to be on in the playback menu for recording to work. This patch works 100% for me, so I hope for a bigger success rate this time... Feedback is welcome.

Just one question, as I'm new to patching.
Do I need to undo the other patch first or will the new patch
fix this automatically?

[petur]

undo the old patch or start from a clean cvs download

[dwonk]

I used that patched and compiled .iriver document I got off of preglow's site and couldn't get past 28MB (feeding it with a SPDIF signal from a modSBM).  I think that the RAM buffer is having trouble flushing and as a result the player locks up.  FWIW, I have had the same issue with analog recording in the past.  Maybe the first signs of HD failure?  I know I got some bad sectors on the drive.

[mborus]

Here's a short test during lunch break.

Recording from CD (running) worked.
Recording from CD (not running yet to catch beginning) freezes Iriver.
Recording from satellite (48 kHz) worked, but resulted in a 44.1 kHz file

The best thing. Recording the same 10 minute segment twice resulted
in bit identical files.

Here are the two recordings:



This is the difference (I inverted file 2 and added both) :


During the length of the shorter the result is zero. So no difference.

Perfect.

The only bad news is that first of the two trial recordings failed after
14 minutes. Here the peak meter showed nothing and the file size was
not increasing any longer.