greenmachine

Are these the 1GB ones or somewhere around 300MB? The 1GB are not compatible to older equipment, while the 300MB ones might be.

Li-Ion's use a different chemistry, voltage and need a different charging circuit. It is not possible to use these in the RH10. People seem to have good experience with GP brand gumstick batteries.

The quick mode (under options) constantly drains a little bit of power (about 1mA on my NH700), but that should not deplete a battery in one single week, but rather in a couple of weeks. If you don't regularly use the unit, turn the quick mode off and/or remove the battery.

If battery performance is degraded by the memory effect, it may recover if you make a practice of discharging completely (leave in play mode until unit automatically switches off) before recharging. A NiMH battery should last about 300 charge-recharge cycles average in theory before performance significantly degrades.

NiMH have higher self discharge rates. If you haven't used the unit for a long time, the Alkaline may still be going strong while the NiMH lost a more or less significant part of its capacity even when not in use. For short term usage, NiMH would be preferred as they can handle higher current drain (when recording for example). In high drain situations, Alkaline batteries will seem to be empty way before they actually have used all of their capacity. This remaining capacity can only be used by low current drawing devices like clocks, calculators, etc. Of course, there's also the environmental aspect: Alkalines are waste after only one full discharge, while NiMH can be re-used several hundred times. Visit this page for detailed battery info: http://www.batteryuniversity.com/

http://mpesch3.de1.cc/

It has been suggested to measure their resistance and match that, but that's not a reliable way them in my experience. You'll have to actually connect, run a few test signals through them and compare their output. If you solder or find another way to temporarily connect them is up to you. Also, the capsules can change their characteristics if too much heat is applied (by soldering or otherwise), so even a previously perfectly matched pair can become bad if you're not careful. These tiny things are really susceptible. Use a heat sink or cool otherwise.

Updated first post with matching information.

Me too. It even includes an external mic in binaural style (separable elements) and for another 4 bucks you can get the bundle with a 2GB SD card included. What I dislike is the size and the lack of a 1/8" (3.5mm) stereo mic input. Who wants to be the guinea pig?

Thomann.de has a nice selection of many of the current stereo recorders. The price tag of the Swissonic MDR-2 is appealing. Plus, the RH1 is in stock. Yay.

Or you could simply use an external charger.

True.

line-in: auto track marking mic-in: no marks Auto track marking unfortunately can't be disabled.

The mA draw depends on the mic capsules used. It's usually below 1 mA. The mentioned battery should work. I have not been able to hear any differences between capacitors or resistors as yet. If you use resistors with a low tolerance rating (1%), you won't have to match them yourself.

As opposed to Hi-MD portables, the NJB3 can't be powered solely by USB. Make sure there's either a charged battery in it and/or the AC adapter is connected. If the USB cable fits, it should work. Also, the NJB3 is not a plug-and-play device, make sure you have the correct drivers/software installed.

You're welcome. Here are the pics: I've then used electric tape to isolate everything properly and put some heat shrink tube around it.

I would agree if we were talking about a sensitive mic and close miking, but to capture two instruments at the same time, you'll have to keep some distance, plus the ECM-MS907, like most Sony mics, is not exactly sensitive with its effective output level of -56 dBm ±4dB (0dB=1mW/Pa, 1kHz).

I'm not sure about the specs of the diode, but it should not be a z-diode. Mic capsules with a higher current consumption will need resistors with a lower value. The higher the value, the better the channel separation. The mini mics I use consume less than 1mA a pair, 6.8 or 10k resistors work nicely.

I doubt there would be enough gain for recording unamplified instruments. The recordings would be fairly quiet (and probably noisy if normalized). Plus there are the the annoying auto track marks when recording from the line-in. A recorder with mic-in and/or built-in mics doesn't seem like a bad idea.

Yeah, problems with static. You could connect a dummy battery clip with no outgoing cables to prevent touching. A dead battery wouldn't be such a good idea (low inner resistance).

Here's a new idea: battery box built into the lead of the microphone. Uses diodes to forward the plug-in power from the recorder's mic-in jack. Can be used with or without battery. The battery clip should not be touched if used without battery.

M/S (mid/side) Joint stereo works without significant loss, whereas LP4 uses some form of lossy channel narrowing (intensity joint stereo, used only for very low bitrates) AFAIK. It's probably not necessary to re-encode as long as you can live with a slightly larger file size. Visit the documentation section of the LAME homepage for technical details.

Disabling joint stereo will usually decrease the efficiency of the codec (higher avg. bit rate at equal quality and/or worse quality at equal avg. bit rate) and thus is not recommended by the developers.

What about TOC Cloning?

The R70 lacks a microphone sensitivity switch. Depending on the sensitivity of the mic capsules and the loudness of the sounds you want to record, the input may be too sensitive (-> overload). You cannot transfer your recordings digitally to the PC with a pre-HiMD portable. http://forums.minidisc.org/index.php?showtopic=7070