[Fstoppers Review] The Best Portable Audio Recorder For DSLR Video

[Fstoppers Review] The Best Portable Audio Recorder For DSLR Video

You often hear film makers say, "Your video is only as good as your audio". Obviously video production goes a long way too but poor audio can completely ruin an otherwise great video. Until recently, DSLR cameras have been anything but great at recording audio. The on board microphones are noisy and prone to record camera noise. Plugging an external microphone into the line-in has also left a lot to be desired. So how should someone just getting started with film making supplement their DSLR video with good usable audio? I've tested 4 different portable audio recorders, The Zoom H4n, Tascam DR-100 mark ii, Olympus LS-10, and the Apple iPhone 4S, to see which unit gives the most bang for the buck.

The Zoom H4N Digital Recorder

The Zoom H4n is one of the most popular digital recorders on the market. It was also one of the first to really hit the scene back with the Canon 5D Mark II showed the power of DSLR video. Priced around $300, the Zoom H4N has a lot of features for those wanting to use professional microphones. Two XLR inputs with 1/4" instrument inputs allow for you to record with any sort of microphone or instrument. If you want more ambient sounds, the H4n also comes with a pair of on board microphones that let you capture true stereo in 90 and 120 degree recording patterns. It also features 4 channels of recording which is nice for interviews or recording performances and an audience or crowd. Here are some of the advantages and disadvantages I have found using the Zoom H4n:

Dual XLR and 1/4" input jacks - Easy to adapt different mics or audio sources
Clickable Rec Level Input - This button design keeps you from accidentally changing your levels
4 Track Recording - Great for multiple interviews, demoing music, or recording live music
Variable Playback - 50-100%, great for learning guitar riffs but probably not super important for video recording
Included AC Adapter - Great for longer recording sessions and nice included accessory
Ships with 1 GB memory card - A decent amount of space for audio

Large in Size - People might disagree with me but this is too large for me to personally keep in my bag. It might make sense for a musician but not for a photographer
Menu Dial - In order to select options in the menu you have to push a rotating wheel down which is really a pain. It reminds me of the poorly designed Nikon D4 cross pad, augh
No separate headphone/line out for monitoring audio - You can monitor audio but it would be nice to feed a second signal into your DSLR camera as well

Tascam DR-100 Mark II

Based on the original DR-100, Tascam's Mark II model offers a lot of great features for both entry level and advanced level film makers. Like the Zoom unit, the DR-100 also has a set of "UNI" condenser mics on the front of the unit as well as two tiny pinhole "OMNI" microphones that pick up less directional sounds. The Tascam DR-100 also has XLR inputs but does lack the 1/4" inputs found on the Zoom. The DR-100 uses both AA batteries as well as an included rechargable battery but does not ship with an AC power adapter. One of the best features the Tascam has that the other units in this review do not have is the DR-100 features a lot of physical buttons in place of menu settings. Making quick changes on the fly is fast, and important settings are easily visible because they have a dedicate button or switch. Just below $300, the Tascam DR-100 Mark II might be the best option for the film maker on the go who needs a lot of control over his audio.

Navigation Menus - The ipad like scroll wheel and easy to read LCD make navigating through the menu a breeze
External Buttons - Every major feature has a hard button for adjusting settings quickly
Both Line/Headphone Outs - You can easily monitor audio through headphones while also sending a line signal into your DSLR's microphone jack for easier syncing.
Two Batteries - If your rechargable lithium battery dies, the DR-100 runs off of AA batteries too

HUGE in size - Like the Zoom H4n, the DR-100 is no pocket sized recorder. You also don't want to have to mount this to the top of your DSLR and hand hold it.
No 1/4" inputs - While not a deal breaker, the Tascam does not support the multi purpose XLR/Instrument jacks.
Input Level Wheel - The input level wheel on the right hand side is easy to rotate which means it's easy to bump and change your signal level. How about a lock button?
No Internal Storage - Just like the Zoom, if you forget your SD card you are out of luck!

The Olympus LS-10 Mini Recorder

While the Olympus LS-10 has recently been replaced by the LS-20m (which records video), we thought we'd include it because it has been our own goto audio recorder for the last 2 years. Because of it's small size and easy to use setup, we actually picked the Olympus LS-10 over the Zoom H4N when we tried them at the BH Super Store in NYC. Like the two previous units, the Olympus also has two directional microphones and the ability to record microphones with mini 1/8" connectors. While it cannot accept or run phantom powered studio microphones, it is by far the smallest of the three professional recorders which is worth its weight in gold. The menu is pretty straight forward and easy to navigate, and the Olympus also has 2GB of internal memory which has saved us more times than we'd ever like to admit. There is only one "Ear" output so like the Zoom you cannot monitor and record it to your DSLR without rigging up a splitter cord for dslrs which can be a liability (not monitoring audio will always bite you in the rear). Because the Olympus LS-10 does not have to power all the extra features found on the larger units, the two AA batteries seem to last hours and hours.

Small in size - For photographers getting started in video, this is great because it is easy to mount on a hotshoe and light enough to still pull off steady handheld shots.
Internal Memory - The 2GB internal storage means you could use that extra memory card for more HD video.
Easy Menu Navigation - Probably a slightly biased opinion, but the Olympus seems to have the easiest menu to navigate of any of the recorders.
Features - You still get a lot of the "pro" features such as low cut, Limiter, line/mic inputs, and even reverb effects

Limited Input Options - If you want to use XLR mics or phantom power then this unit is not for you. For smaller Lav microphones it's as good as the others.
No Line Out - You can monitor audio through the headphone jack but you can't also output the signal into your DSLR at the same time.
Input Level Wheel - While not as bad as the Tascam, the Olympus input level wheel is pretty easy to bump and alter your signal.

Apple iPhone (or other similar device)

I know most audiophiles would probably cringe at recording audio with anything other than a professional digital recorder, but in all reality the Apple iPhone actually does a really great job with audio. A while back, Lee and I filmed a video on how to use an iPhone to record audio, and we have used the iPhone several times on our own Fstoppers Originals. I was even shocked to see that our friend Peter Hurley plugs his Sennheiser G3 Wireless Mic directly into his iPhone for really good audio for his in studio videos. The point is, don't overlook any recorder you already own. And who knows, you might find that the audio from your iphone is high enough in quality to suffice for your first DSLR videos. Anything is better than no audio, poor audio, or horrible audio recorded off your DSLR's on board microphone.

Small Size - You can fit these anywhere and easily hide them in a shirt pocket
Built in Memory - Nevermind 1-4 GB cards, on an iphone you really have unlimited storage
Easily Accessible - Most photographers carry a smart phone but if you don't have one someone around you probably will

1/8" Input Only - If you need to plug an external mic up, it must have a 1/8" cord and be self powering
Syncing - Because Apple doesn't let you drag and drop, you will have to sync your phone to software to remove the audio (can be a pain)
No Monitoring - There is really no way to monitor what you are recording which is often an accident waiting to happen
Phone Calls - Yeah, just like using your iphone as a professional camera, you can easily get interrupted.

Audio Tests - So Which Digital Audio Recorder Sounds The Best?

We've been using the iPhone and Olympus recorders now for years. We know them pretty well and the sound quality they are capable of producing. We've also used the Zoom H4N off and on since it came out. The results we have found below aren't scientific by any means, after all we are photographers recording video with DSLRS and not sound engineers, but it should give you a basic idea of what you might find out on the field.

With most of our videos we use the Sennheiser G3 Wireless Lav Microphones for our interviews. These are pretty much the industry standard for run and gun type projects and are highly recommended and praised by most who own them (hint, buy the older G2 units used for major savings). Since adding transmitters and receivers to the recording path could easily skew our results, we decided to only test the onboard condenser microphones. We have gotten great results with external mics on the two lowest end models (iPhone and Olympus LS-10) so we assume the Zoom and Tascam can produce similar results as well if not better. But which recorder sounds the best if we are forced to only use the microphones built directly in the units themselves?

The Test

We set up the iPhone, Tascam, Olympus and Zoom all in a row about 3 feet away from our interviewee. Except for the iPhone, all three recorders' microphones were set to have the most narrow range so we could eliminate as much ambient noise and reverb in our studio. All air conditioners and fans were turned off and no noticeable white noise was found when we recorded silence. We then set each unit (except the iphone) to record the max input level just before peaking while the person we interviewed talked at a normal speaking volume. It's not the most scientific method but by removing as many variables as we could we feel like it represents a common run and gun setup any DSLR videographer might find themselves in with just a recorder an no extra mics.

The Results

The iPhone - The Apple iPhone did pretty well but definitely had the most ambient noise and reverb of any of the recorders. This was to be expected because the iPhone mic is not much of a condenser mic at all and records pretty much anything in front of it including sources on the far edge of 120 degrees. The noise floor was still pretty good though, and as we've shown on Fstoppers in the past, if you place the iPhone close enough to your subject, maybe within 12 inches, you can get very good clean audio with little room dynamics or ambient noise. For anyone interested, we used the iTalk Software to record and download files off the phone.

Olympus LS-10 - We have used the Olympus recorder now for about 2 years. We have only used the onboard microphones a few times; up until this point we have had nothing to really compare them to for an accurate test. After listening to our test files, the Olympus microphone really struggles compared to the Tascam and Zoom (I will exclude the iphone from here on out). The Olympus had the least bass of any of the recorders and had more room reverb than any other recorder. I'm not exactly sure how the microphones on the Olympus work but to narrow the amount of mic coverage, you have to change a setting in the menu. Perhaps the mic's field of view is controlled by software instead of actual mic position. The Olympus audio files were pretty nice on the high frequencies though and would easily cut through any soundtrack placed below it. For the purpose of this review, I would give the Olympus an average grade of B+ on overall sound quality from the on board microphone.

Zoom H4N - After listening to the iPhone and Olympus audio files, we were extremely impressed by the added bass heard on the Zoom files. The Zoom showed almost no ambient reverb from our studio and that full, bottom heavy sound we have all come to associate with high quality voice recordings was present. The high end wasn't as cutting or sharp as the Olympus, but that might be a good thing especially if you are interested in keeping the entire spectrum from clipping. You can always brighten the final mix in post if you had to but I think the Zoom would still cut well over any audio or soundtrack. Overall I would give the Zoom H4N a solid A based on these results.

Tascam DR-100 MKII - Comparing the Tascam to the Zoom recorder is pretty tough. Overall the Tascam audio files had less bass than the Zoom but did have just a slight more presence on the high end. The OMNI mics do pick up just the slightest bit more ambient reverb compared to the Zoom but I don't think you would notice it unless you were listening to the files size by side with no underlying soundtrack. Even though we did our best to max the recording levels as much as possible, the Tascam seems to have a little less "umph" in the overall volume. Maybe the unit's clip indicator is a little more conservative than the other units. When normalized to the same relative volume, the Tascam still had the least ambient noise (but slightly higher room reverb) and probably sounded better than any of the other recorders as a whole. Where the Zoom had a little more bass, the Tascam had just a little more clarity in the higher frequencies. Overall, the Tascam probably sounded the best, even if only marginally, and I would rate the recording performance an A.


I am no sound engineer. The two sound systems we used to compare the files were not studio quality systems, and the two headphones we used to recheck our findings were not going to impress any audiophile out there (although both systems and headphones used are very nice). But that's okay, we wanted to review these units as a whole from the perspective of an amatuer or advanced DSLR film maker in need of recording interviews or general audio. We all know audio is extremely important in film making and really any of these units could be used to make compelling documentaries or behind the scenes videos like we often feature on Fstoppers. From an audio perspective, the Tascam DR-100 MK II might have won overall but the biggest factors in choosing one of these units is probably going to be the form factors, size, and overall ease of use. Even knowing the Tascam records the cleanest audio, I still would prefer the smaller Olympus LS-10 because it's small enough to fit in my pants pocket and not going to take up valuable space in my camera bag. If you are in a bind, even an iPhone can record acceptable audio if you take the time to isolate your subject from noisy environments. At the end of the day, a $300 audio recorder is cheap enough to warrant owning one especially if you are looking to create short movies or youtube videos with your DSLR camera.

If you have any experience with any of these units, or other units we have not yet tested, please leave your thoughts in the comments below.

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Thanks for the breakdown. People should also read this post to learn about splitting a line out signal so that it can serve as a monitor AND as an input directly into the camera mic-in:  

There is a very important LINE OUT SPLITTER cable mentioned in that post that allows you to do all these things at the same time:  record audio to the external recorder, record the same audio directly to the camera, monitor the audio via headphones.  The cable is sold here:  

I've also owned and loved the LS-10 for a couple years now and it has never let me down (although it does come up a little short in capturing the lower frequencies, like you say).  The build quality is solid and it does all that I need it to with a small form factor.  You mention the LS-20M but there is also an LS-11 that has a few upgrades from the LS-10, including 8gb of internal memory.

Mont Toronto's picture

I've had an H4N for a year now and have never been disappointed with it.  It's small enough for decent portability and with a cold-shoe mount for a DSLR, it becomes far more manageable.  The two XLR jacks are also extremely useful once you start using boom mics.  As a college student filmmaker, it was a great decision to add to my filmmaking gear and I think that at $300, it is a steal.

JimmySchaefer's picture

Same here man!

Nam Phan's picture

anyone tried the tascam iM2? It used to run for almost $100 but now at just about half the price, I'm thinking about nabbing one of these.


Works okay, but it doesn't fit on the iPhone very tightly. It also doesn't have a monitor out, making recording with it potentially frustrating.

you must to try the Zoom H1.. I know it's just a entry level field recorder... but for 99 bucks it works pretty well..

Jens Marklund's picture

I was hoping for a video, so we could compare them ourselves - sound wise. 

Jens Marklund's picture

Regarding the iPhone/Smartphone cons: Syncing, and I think audio levels, can both be solves using third party apps. Phone calls or texts - just put the phone in airplane mode when using it as a mic.

Zack Williamson's picture

Obviously this is a small sample of devices available, but one of the best devices in terms of features vs price is the Tascam DR-40. Especially after the most recent firmware upgrade, it is an amazing recorder for less than half the price of the H4n or DR-100.

Nicholas's picture

Thanks for this post. Love the recommendations. I currently use the Tascam DR-07 MK II. I'm not sound mixer either but, the more I learn, the better my audio sounds with this device each time I use it.

I have been using the Zoom H4n, Zoom h2n, zoom h1, Olympus ls-10, and iPhone for years.  Love my ls-10 but the audio from the H4n is far superior.  No complaints from about my LS-10 though.  the iphone isn't bad for note taking, but (without a pro external mic set up) I'd never rely on it for my main audio.

Pedro Ruiz's picture

Great write up, wish there could have been audio examples to listen to. I did a review of the iPhone Lav mic, with monitoring splitter. Sounds great! I tested against the H4N, you can find the video here: http://pixil.info/review-of-mic-w-i825/

Patrick Hall's picture

I can try to post the samples somewhere

I've had a Zoom H4N for some time and usually use external phantom powered XLR shotgun microphones. I would like to see an audio comparison of the recorders from the same microphone and maybe a Sony recorder compared also. By the way the Zoom H4N uses up it's battery within an hour and a half using a couple of phantom powered microphones.

Ken Yee's picture

So you're substituting crappy on-board DSLR video for less crappy audio recorder microphones mounted on the camera? :-)
I think XLR mics (wireless lavs and boomed) are pretty important for good audio...sort of like using on-cam flash vs. off-cam flash in creating good final results...

Patrick Hall's picture

On board DSLR video?  I don't follow.

If you had to use these units to record interviews, you need to either hot shoe mount them on your camera which is on a tripod (so nothing moves or makes sound) or mount the audio recorder closer to your subject.  

You don't necessarily have to have XLR mics for good audio as much as you need correct microphone placement.  The reason DSLR mics sound so bad, besides the noisy circuitry, is because they are placed far away and pick up all the ambient noise.  That is why an iphone in a shirt pocket sounds so good; it is very close to the subject and picks up only the person's speech.  

On camera flash vs off camera flash is very similar.  Placement makes a huge difference.  Fancy speedlights are better than cheap speedlights but they don't make AS MUCH of a difference as on axis vs off axis.  

For my purposes, the Tascam DR-100 is the best out of these.  It is basically the same price and quality as the Zoom, but it has two outputs, which is a very big deal to me.  When I was shooting on the 5dmarkii, I would run my audio into my tascam, and simultaneously monitor it with headphones and output to my camera.  With the Zoom, you have to choose one or the other.  Most of the time the sound was good enough in camera to use without syncing, but if it wasn't then I always had it backed up on the Tascam.  Great unit, although I don't use it as much now that I have the markiii.  

Patrick Hall's picture

isn't it awesome now having DSLRs that record audio really well straight into the camera?  The D800 and D4 are amazing and might make external recording a thing of the past.  

B_Y_O's picture

I use the H4 for short film work as it gives me a great sound for very little money.  You can plug in an XLR cable, a nice shotgun mike and get an excellent sound straight out of the unit and then do some more work in post. 

As to only being able to monitor the sound directly out of the unit... This makes perfect sense if you have a sound operator and you want to double your sound and film (that is record the image and sound seperately).  They're taking care of the sound so you trust them to monitor the output and then there' s no need for any other mike.  I haven't tried it for anything else, so that suits me at the moment.  However, I can see it being very painful if I was trying to record sound and operate the camera at the same time...

Marcus Michaels's picture

You should get the Zoom H1 involved in one of these tests at one point. Less than £100, very light and uses the same microphones as the H4n.

Patrick Hall's picture

Well this test was only for the units priced around $300.

Eric's picture

"People might disagree with me but this is too large for me to personally keep in my bag. It might make sense for a musician but not for a photographer"
Yes I do disagree with you, because a photographer doesn't need to record audio, but a videographer does and the size is fine. As a videographer, strobes are to big to personally keep in my bag. I'm trying to get my G3 to work with my iPhone though, and no luck.

James's picture

Jeez !!! no video review ??? that's a hell of a lot text to read guys !!

Being fairly new at DSLR film making, I read everything I could find before choosing a new microphone and audio recorder for my projects. I settled on a combination of a rode ntg-2 microphone an a zoom h4n recorder when being presented with the opportunity af making a video of a concert last october. I set the zoom h4n to 4chan recording with the ntg-2 on one xlr input and the mixer on the other. The result was simply astonishing - crystal clear stage sound from both the ntg-2 an the mixer with a good ambient from the h4n internal mics.

As to the size of the zoom audio recorder:
Good equipment has its size. While on location I carry two bodys and five lenses, 5 speedlite an various accessories in a lowepro magnum 650 aw (with a second bag for the elinchrom flashes), including the zoom audio recorder and the rode mic - and the latter two are negligible when it comes to size and weight.

Thanks for this impressive comparision and your recommendation -
The H4n is performing great with extraordinary sound quality in mid- and high level environments - but however, if you need something to be used in low level environments as well, the H4n is not excelling there as the Mic preAmps are noisy from  -30 dB down to earht .. i use very low noise Mics with phantom powering (Sennheiser/AT) but need lots of work to keep the noise level down. Currently looking into R-26 from Edirol . has anybody out there experience with that device - would love to hear about.
kind regards, Mike

bauranda's picture

"I was even shocked to see that our friend Peter Hurley plugs his Sennheiser G3 Wireless Mic directly into his iPhone for really good audio for his in studio videos." Can you tell me, how this is working. Any extra gear needed? Thx.

Great Comparison between the recorders! But I have an NTG-1 mic which needs an additional power supply. I believe it's Phantom Power. You mentioned that the Olympus recorder didn't give phantom power, so does that mean that the H4N and the Tascam does give phantom? If so that would be fantastic!

Here's a related article on mics for DSLR video shooting, including a video that gives some sense of the audio quality of the various mics discussed--http://thediscerningphotographer.com/microphones/

Iphone? why iphone???? As a photographer i really get mad.. Seems that iphone, Apple is sort of holy, God, a new religion, Use The other brands tested here or Nagra, they are developed for this kind of work

You can up the quality of an iPhone recording using a Rode SmartLav and Rode's app called Rode Rec... very convenient when you want to run lightweight but make sure you put it in airplane mode or it can get interesting!!