Brad Linder is a blogger, freelance journalist, and producer for National Public Radio. If anyone loves mobile recorders, he sure does. He writes in with a great overview of what was happening in mobile recorders at the AES show here in New York, with plenty of detailed information on his blog.

Our friend David Battino writes from O’Reilly Digital Media site to share the massive reader response they got to the Zoom H2 recorder. (The H2 is a smaller version of the H4, which made a guest appearance of sorts on Morning Edition this week.)

Mark Nelson didn’t manage to make this his fifth portable flash recorder review in Hawaii, but he made up for it in depth. His review of the Zoom H2 is almost 5,000 words and contains surround-sound links galore as well as some nifty audio examples.

What’s especially cool was that it became a collaborative review after I asked readers what features they wanted us to test when the H2 finally shipped. They piled on with questions, driving my blog to #1 on the whole O’Reilly Network. At last count, I had close to 300 comments. One reader even wrote a Mac plugin to convert the H2’s quad recordings to 5.1.

So, there you have it: mobile recording geekery can have mass appeal!

Review

Pre-discussion

As readers look for the ideal mobile recording device, we’ve had ongoing, vibrant discussion about the Zoom H4. Its built-in stereo mic pair, real XLR jacks, and low price are big pluses — enough so that at least some are willing to overlook fidgety mic level settings. But one major problem could be a deal-breaker: an audible buzz in recordings.

Fortunately, it seems there’s a fix: if you don’t want to have to plug in the AC adapter all the time (which would defeat the purpose of a mobile recorder), make your own DIY battery pack. Zoom forums and RC car enthusiasts to the rescue!

Brad Linder, whom I met today at the NYC Jelly coworking session out in Brooklyn, is a blogger (Weblogs, Inc.) and NPR freelancer. Needless to say, NPR’s audio requirements will be higher than the typical amateur podcaster. Brad extensively documents his DIY RC battery pack.

Building an external battery pack for portable electronic devices [Brad Linder's Digital Home]

Good stuff, and now that I’ve just gotten my own H4, I’ll be trying this out myself.

A couple of other questions come to mind, though: have others had trouble using external mics (which is part of the point of getting an H4)? And, power gurus, I wonder if a LiPoly battery (Polymer Lithium Ion), as used in cell phones and sold via vendors like SparkFun Electronics, could do the trick? They’re not cheap, but the slim design is a big improvement over the Ghostbuster-esque design above. Thoughts?

Previously:
Zoom H4 Mobile Recording: Useful for Movie Production?

Zoom H2 Portable Flash Recorder Coming Soon; Mic Design Delay (with loads of comments from Zoom owners and folks who went with competitive devices like the Edirol mobile recorder)

For field recording, sampling, recording practices and performances, video production, and a lot of other purposes, just about everyone wants an ideal digital mobile recorder. If you haven’t been following comments, we’ve had an extended discussion by readers on the Zoom H4 mobile recorder, its upcoming smaller sibling the H2, and competitive devices like Edirol’s R09.

Now, the excellent new blog bleeps has had some hands-on time with the H4 in movie production:
10 reasons a Zoom H4 is handy on a movie set!

Interestingly, the main issue other readers have had with the H4 — difficulty accessing mic level controls — wasn’t really a problem in this application. The basic internal stereo mics did just fine for stereo imaging. And there’s no shortage of uses:

• Recording primary on-location sound in stereo (even with the built-in mics, though the H4 also has XLRs)
• On-the-fly foley / sound effects
• Ambient audio, room tone, etc.
• On-location audio playback
• Lots of storage for interviews, extra tracks
• It’s not a camera.

Everyone is looking for the Zoom H2, a nifty portable flash recorder with a merciful street of around US$200 and a built-in mic. We know because you’ve all started hitting our ancient page on the H2. It in fact isn’t shipping yet; Sweetwater has an explanation on their site:

The Zoom H2 is expected to begin arriving in stores in August (slightly delayed by an improvement to the microphone design).

Just to demonstrate I’m not linking to them for affiliate cash, I’ll, erm, not link to them. But I expect you can find them (add a dot-com to their name) or try your favorite retailer and perhaps get a similar story.

It looks very nice, and I have to admit I’m myself looking for a new portable recorder. It seems like it’d actually be worth spending the extra US$100 and getting a Zoom H4, which adds XLR/line ins and phantom power for when you need them. (It’s also got four-tracking capability and effects, but the external mic in to me is the big draw.) Advice?

There’s such interest in this, I think we may need to make a portable recorder mega-page. Leave your suggestions here.

We broke the story on the H2 and deferred to our friends on O’Reilly on reviewing the H4. But you will find lots of reader comments (surprisingly, more H4 feedback on the H2 story — check out comments). Could help you make a smart purchasing decision; I’ll be using it to make mine:

Recording@NAMM: Zoom’s $199 USB H2 Mobile Mic/Recorder, Found in the Wild
O’Reilly Reviews Zoom H4 in Hawaii: Good, with Quirks

If there’s one thing I’ve learned since coming on board to help Peter with CDM it’s this: The kids love a portable recorder. The Edirol R09 and Zoom H2/H4 articles are among our most popular ever.

Now Korg are supplementing their existing multi-track digital recorders with the 20GB, pocketable MR-1 (US$899 MSRP), and the 40GB, tabletop MR-1000 (US$1499 MSRP).

Shipping right now, these are “1-Bit” recorders, recording “DSDIFF, DSF, and WSD 1-bit formats, as well as multi-bit PCM format (BWF) with resolutions up to 24-bit/192 kHz”. If you’re like me and thought that more bits was better, Korg have helpfully provided a PDF entitled “Future Proof Recording Explained”, to clear up any misconceptions you had about the usefulness of more bits. The executive summary: When you’re sampling really really fast, the only numbers you need are 1 and 0, to indicate whether the sample is up from last time, or down. That’s my only insight on the science part for now, people who understand more feel free to debate the 1-bit revolution in comments.

Hardware Features

MR-1

• 20GB internal drive (6 hours @ highest quality 1-bit, 20 hours @ CD quality, MP3 support apparently available mid-2007)
• Ability to plug in external FAT32 USB hard drive for expanded recording space
• USB 2 transfers
• Rechargeable lithium polymer battery (no word on battery life) or AC power
• Dual balanced mini phone plug inputs
• 2 track simultaneous recording and playback
• Includes stereo electret condenser mic
• Backlit LCD
• Dimensions: 64 (W) x 120 (D) x 24 (H) mm / 2.52″ (W) x 4.72″ (D) x 0.94″ (H)
• Weight 200g (7oz) with batteries
• More specs (including plenty with dB and Hz for the audio nerds)

We’ve been watching Zoom’s upcoming, unannounced $199 H2 recorder, seen at NAMM. The H2 has the advantage of price and flexible mic patterns for its built-in mic. But its shipping, larger sibling, the $299 H4, may be a better choice, depending on your needs. The H4 has basic 4-track operation, built-in effects, X/Y-pattern mics, and — most importantly, unlike the H2 — real XLR jacks for using your normal mic. That alone could make the H4 the killer recorder in this category, especially since it still costs less than competing recorders without good mics or XLR ins from M-Audio, Edirol, and Korg. The best feature: use the XLRs as mic ins for your computer, power the H4 off your USB bus, and you’ve got an instant computer interface, as well.

Mark Nelson gets the hand-on for O’Reilly’s Digital Media site. Now this getting out of hand: he writes yet another portable recorder review in Hawaii. I guess they’re getting a good humidity test or whatever, but could they maybe test this somewhere else, too? (I’m in Hawaii at the beginning of March, so I can’t be bitter. Maybe I’ll do a soft synth test, just for CDM’s competitive angle.)

O’Reilly — Review: Zoom H4 Handheld Recorder

Mark’s verdict: great for both convenience and sound quality, even if navigating menus and setting levels is clunky. That’s consistent with what we’ve heard from readers here who own the H4. Be sure to read Mark’s review, and check out the CDM comments thread on the H2 and H4 from last week. As usual, Mark has some sound clips to back up his impressions:

External mic guitar recording, uncompressed WAV

Thanks for another great review, Mark!

Here’s a serious play for budget mobile recording from Zoom: a US$199 recorder with an integrated mic and some unusual flexibility thanks to 3 integrated capsules. Translation: point this at whatever you want to record, then adjust to one of five mic patterns to “frame” it exactly like you want. Zoom had only a spec sheet and non-functioning unit on the floor of the NAMM show, but here’s the summary — at least on paper:

1. 3 mic capsules and mid and side patterns allow front 120-degree cardioid, front-90 super cardioid, rear 120-degree cardioid, rear 90-degree super cardioid, and 360-degree polar


2. USB interface; works as an audio interface — meaning this doubles as a USB mic


3. WAV 96/48/44.1 KHz, 320kbps VBR MP3


4. External mic for plug-in power stereo mic


5. Time stamp function