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Rockbox Ports are now being developed for various digital audio players!

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|-+  Support and General Use
| |-+  Recording
| | |-+  Improper buffer flush?
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Author Topic: Improper buffer flush?  (Read 1867 times)

Offline dwonk

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Improper buffer flush?
« on: September 19, 2006, 11:47:17 PM »
I am running CVS 20060717 with SONY SBM as an outboard A/D (@44.1 WAV).  I recorded a long set the other day (2hour 15min).....there is one passage where you can hear 5-7 seconds of music missing.  Happened just once as far as I can tell....about 42-43 minutes into the recording.  The HD was maybe 10G full from stuff I recorded from Fuji Rock and Metamorphose, no MP3s or extraneous files...never had an issue before.  This is a H120 that I replaced the HD and battery myself.  I am stunned and sort of feeling badly about selling my JB3!

What are people setting the HD spin up time and other general settings variables that could help alleviate the problem?  I have another H120, that has not done this yet.  Again, this is a one off thing...never had it happen before.
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Offline petur

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Re: Improper buffer flush?
« Reply #1 on: September 20, 2006, 02:28:27 AM »
The harddisk you replaced, was this a new one? Did you buy the player second-hand because it was broken? Was the battery charged ok?

I'm certainly going to test this to verify everything is ok
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Offline pabouk

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Re: Improper buffer flush?
« Reply #2 on: September 20, 2006, 05:34:57 AM »
Quote from: dwonk on September 19, 2006, 11:47:17 PM
I am running CVS 20060717

This is a pretty old build. Please try the newest CVS build. Although there were several serious bugs in the recording code recently.

As Petur said the problem could also be caused by a faulty harddisk (long spin up time, long seek time - shaking with the player?...).

Quote from: dwonk on September 19, 2006, 11:47:17 PM
I recorded a long set the other day (2hour 15min).....there is one passage where you can hear 5-7 seconds of music missing.

Today one bug which could cause missing parts of recorded sound was probably fixed. See also FS #5952.
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Offline dwonk

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Re: Improper buffer flush?
« Reply #3 on: September 20, 2006, 05:42:20 AM »
New HD MK2004GAL verfified and tested for bad sectors w/ chk dsk.  I should format the disk again and verify this, though.  The player had a bad HD in it but looked like it was hardly used (the remote was still in the wrapper), not a scratch on the body.  I got the previous owner to kick in $100 for a new HD, which I bot along with a replacement ipod 2g batt.  

I have used this H120 pretty extensively.  8 hours at Fuji Rock, 5 hours at Metamorphose Festy...a few hours doing in-stores and a friend's jazz performance.  No problems, I have listened to all those recording and not noticed a glitch.  Taped about 3.5 hours yesterday and I noticed this.

I have another H120 (used too but the HD verified ok with chk dsk)...I have only used it for 8 hours total...no problems.  I really hope I can resolve this.

These are the settings I have for the Disk:

Disk Spindown: 5s
Disk Poweroff: No
Directory cache: No

Should I be setting things up differently in the general settings?

The player was in a bag on the ground.  Also, it was running out of a mod Edirol UA-5, not a mod SBM.  Sorry.  
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Offline petur

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Re: Improper buffer flush?
« Reply #4 on: September 20, 2006, 06:28:04 AM »
Quote from: pabouk on September 20, 2006, 05:34:57 AM

Quote from: dwonk on September 19, 2006, 11:47:17 PM
I am running CVS 20060717

This is a pretty old build. Please try the newest CVS build. Although there were several serious bugs in the recording code recently.


Ouch! I completely misread that date, thinking it was september 17 - just a few days ago.

Yes, do move on to a more recent build

Quote from: dwonk on September 20, 2006, 05:42:20 AM

These are the settings I have for the Disk:

Disk Spindown: 5s
Disk Poweroff: No
Directory cache: No


these are mine:
Disk Spindown: 5s
Disk Poweroff: Yes
Directory cache: Yes

It shouldn't really matter, disk poweroff will save you more battery and dirctory cache will speed up things a bit when browsing.
« Last Edit: September 20, 2006, 06:31:01 AM by petur »
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