Topic: iriver H1xx Tapers FAQ (beta)

[kuba]

The extra noise with using the remote is just going to be, well, lost in the noise.

I second that.

I first recognized the raised noise floor with remote on a recorded lecture. I went +24dB on H120 and +20dB in SoundForge. I don't think I would EVER hear anything without these circumstances.

[cgrooves]

My h140 arrived today 

Installed rockbox firmware 1.66 (US) & today's daily build.
Noticed that the 'A' & 'D' is not showing up next to the gain figures.  I know that up to 24db is analog and over 24db is digital, but having the display on the screen would be nice.
Any advice?

[petur]

Installed rockbox firmware 1.66 (US) & today's daily build.
Noticed that the 'A' & 'D' is not showing up next to the gain figures.  I know that up to 24db is analog and over 24db is digital, but having the display on the screen would be nice.

The logic that splits up a certain gain setting into analog and decimator parts was moved down to the driver, and at the same time the indicators were removed. (wasn't me )

Your interpretation is not 100% correct however: analog gain steps are 2 or 3 dB depending on the input source, and the decimator (which has 0.5 dB steps) is used to fill that gap. So unless you're at a multiple of 2 or 3 dB, there's always a (very small) decimator gain used.

[udovdh]

Maybe we need a 'purist' patch to use just analog gain? 

[cgrooves]

Thanks for the explanation, Petur. 
I don't really understand the analog gain / decimator gain issue, just have read that the analog gain is 'cleaner' or 'better'. 

udovdh - There is probably an interest in that patch within the taping community, but like I said above, I don't have enough knowledge on the subject to really understand the pros & cons.

[udovdh]

Thanks for the explanation, Petur. 
I don't really understand the analog gain / decimator gain issue, just have read that the analog gain is 'cleaner' or 'better'. 

udovdh - There is probably an interest in that patch within the taping community, but like I said above, I don't have enough knowledge on the subject to really understand the pros & cons.

I might look into a patch later. (I have a setup to build rockbox and knwo a bit of C)
Before going into the digital domain do whatever you can by analog means.
Later, on your DAW, you can do all the digital tricks you want with all precision you want.
Whatever gain is cleaner depends on the opamps or the software algorythms. Just don't do quick digital operations in the 16-bit domain.

[cgrooves]

I haven't been running a pre before now anyway, but have used line transformers to boost the gain before the recorder.  I plan on keeping the line transformers in the chain when using the iRiver to keep from having to boost the gain on the recorder too much.  I may not even need the line transformers with the iRiver because I'm used to running into a recorder with 47KOhm impedance and the iRiver is only 10KOhm impedence from what I've read here.

[dennisrtyler]

ok i just installed the bootloader and daily build...followed the directions to a T...everything took as it should have(i.e. .rockbox and .rockbox.iriver files are in place) but when i turned off and back on Rockbox is not loading. any ideas? thanks!!!

rockbox loader screen comes up
rockbox boot loader
version 6
batt: 3.99v
loading firmware
result: -1

then i get a screen that says total 0022 folders 0001 songs

please help. thanks!!!

[George]

ok i just installed the bootloader and daily build...followed the directions to a T...everything took as it should have(i.e. .rockbox and .rockbox.iriver files are in place) but when i turned off and back on Rockbox is not loading. any ideas? thanks!!!

rockbox loader screen comes up
rockbox boot loader
version 6
batt: 3.99v
loading firmware
result: -1

then i get a screen that says total 0022 folders 0001 songs

please help. thanks!!!

try an older version of rockbox.

[dennisrtyler]

an older daily build? how far back should i go? thanks!!!

[whatboutbob]

I mentioned it in the other thread you asked this q, but make sure your file and directory are in your root directory.

-1 means the bootloader can't find the files.

[dennisrtyler]

I mentioned it in the other thread you asked this q, but make sure your file and directory are in your root directory.

-1 means the bootloader can't find the files.

how do i make sure? when i copied the hex file and unzipped the build, i just did it to the E: drive(140 drive). was i supposed to be more specific? thanks!!!

[whatboutbob]

So according to your posts over at rockbox you've got the files in a 'Rockbox' subdirectory.  You need to move them to the root directory.

Plug your iriver in via USB to your computer.

Open Windows explorer.

Click on 'E:'.  Double-click on the 'Rockbox' directory.

With your mouse highlight both the .rockbox directory and rockbox.iriver file.

Right click on the highlighted files, click 'cut'.

Click 'back' so you should now be in the root directory of the drive.

Right click on some white space in the main window of windows explorer.

Click paste.

That will copy and paste the files up one directory.  That's where they need to be.

[hyperplane]

Excellent instructions, whataboutbob. +T

and nice pot as well. 

[whatboutbob]

Thanks. Its protecting my mics from RF interference (and my thoughts from aliens)