Myth Busted – The Too Sensitive Condenser Microphone

Wednesday, December 30th, 2009

I’ve read many times on the internet that condensers are too sensitive, they pick up the mouse in the next room, the refrigerator downstairs, the arm hairs brushing on the top of the guitar. People have suggested that a dynamic mic is better when there’s ambient noise, clumsy technique, or a bad sounding room. Have you heard this myth? Do you believe it? (more…)

 


Composite Acoustics OX Raw

Sunday, December 13th, 2009

Traveling to and from Hawai`i involves big changes in humidity, and this is a recipe for trouble with an acoustic guitar. I’ve suffered from rising action and even finish cracks from the wood swelling when I travel to the islands. Friends who have brought instruments from Hawai`i to California have experienced just the opposite – buzzing low action and a real risk of seam separations, braces coming loose, and even cracks in the top and back.

For a number of years builders have worked on more stable replacements for the wood in our guitars, and now we have plywood, aluminum, and a range of composites including fiberglass, kevlar, and carbon fiber. In fact one of the pioneers in carbon fiber guitars, Rainsong, started their business in Hawai`i and attracted a number of local players to their instruments.

Composite Acoustics is a relatively young company that started with a dreadnaught and bluegrass focus, but thanks to my encouragement (hey, I wrote them an email) they’ve developed some very fingerstyle friendly models, especially the new OX body style. (more…)

 


Kodak Zi8 – Pocket HD with Audio Input

Tuesday, October 20th, 2009

I was already in Hawai`i on my vacation – can you take a vacation from being retired? – when I learned of the new Kodak Zi8. Now I already have a collection of video cameras that gets me teased by my wife, but this new shooter was too good to pass up. I’ve had it here in beautiful Kailua, O`ahu for a couple of weeks now and posted two videos.

I’m pretty pleased with this new camcorder. Let’s look at the pros and cons: (more…)

 


New Tuning Pegs for that Masterbilt EF-500M

Sunday, September 13th, 2009

I’m enjoying some time in Hawai`i and part of the fun is getting back together with my Epiphone Masterbilt EF-500M. This is the first Epi EF-500 I bought, it’s a “second” that I bought used (second squared, I guess). For that last few years I’ve left this guitar in Hawai`i so I don’t have to carry an instrument on the plane.

I’ve tweaked and fiddled with this guitar for a while, especially since I brought it to O`ahu. The humidity is pretty tough on instruments. The tuning machines have always been stiff and they’ve gotten worse lately, so I decided to swap them out for the new Grover Vintage Sta-Tite 18:1 machines. (more…)

 


Mic Comparison – Four More Clips

Friday, June 26th, 2009

I posted a link to yesterday’s blog post at a couple of recording forums and one guitar site. I started threads at the Reaper Forum, on Gearslutz, and at the Acoustic Guitar Forum. It’s been interesting reading people’s reactions.

As I expected, some folks reject the validity of these controlled tests, stating that different mics respond to different positioning in different ways, and their performance in their optimal position is the important issue. I can only suggest that they try some controlled testing in those different positions. After all, if the difference really exists, it should be apparent when levels and positions are matched, right?

And as I expected, some people pointed out that mics with different patterns and mics with very different transducer technology, like ribbon mics, sound different from the cardioid condensers I used. I absolutely agree.

Also as I expected, some people suggested that my use of a single source, the acoustic guitar, is preventing me from hearing the differences, which show themselves on cymbals and vocals. As Dirty Harry was wont to say, “A man’s gotta know his limitations.” I don’t record those sources so I don’t use them for testing .

One comment that has come up a couple of times is that the mics I chose were too similar, all large diaphragm mics from the low end of the spectrum. So I pulled out my highest priced mic, a Schoeps CMC64 small diaphragm condenser, and stuck it in the array. (more…)

 


Mic Comparison – a Tutorial

Thursday, June 25th, 2009

Mics are fun. They are a great gear fetish item, because they’re collectible, a bit esoteric but still familiar, come in a wide range of types and sizes, and most of them have a bit of a phallic quality (grin). Even better, when I read about microphones on the internet or in recording magazines it seems that each mic has a dramatically distinct personality, and a big part of the job of a recordist is choosing the optimal mic for any given source and style.

Sometimes when I’ve listened to mic samples I thought I heard these dramatic differences, but after a bit I realized that I was listening to different performances, not different mics. Sure the mics had been changed, but the player was hitting the strings differently and playing different riffs at a different volume – so how could I tell what part of the difference was the mic, and what part the player?

Since then I’ve tried to do some mic tests of my own, and I’ve tried to educate myself on audio testing. At this point I’m beginning to think that the differences in microphones are a lot more subtle than I had been led to believe, which makes a careful test even more important. As I’ve mentioned before, very small differences in volume are registered by our ear/brain combination as differences in quality rather than loudness. I’d like to demonstrate the steps I now take to try to make my mic comparisons, and preamp and a/d comparisons, meaningful. (more…)

 


Audio for Video – Avidemux and Wavosaur

Thursday, June 11th, 2009

In my last blog entry I described the process for merging audio and video recorded on two different devices, for instance, replacing the audio in a Flip Mino HD video with audio recorded on a Zoom H2. This is a very handy technique, and can give great audio quality in the final video, but sometimes we only have camera sound available. So this post will describe the steps involved in separating the audio from the video, processing the audio, and merging the improved audio stream back to the video. (more…)

 


Audio for Video using Avidemux

Wednesday, June 10th, 2009

I have a lot of fun with Flip Mino HD camcorder. I’ve already done a few music videos with it and in my opinion the audio is far behind the quality of the video. Of course, even with expensive video equipment, having the mic on the camera keeps it some distance from the subject. Having a separate mic, much closer to the subject, gives a much better result. (more…)

 





About the Blog

    Howdy, my name is Fran Guidry and this is my Homebrewed Music blog.

    I play Hawaiian slack key guitar and recorded my solo acoustic CD at home. Most of the recording information I find on the internet seems focused on bands, drums, multitracking, and so on but my main focus is recording solo acoustic guitar. Lately I’ve been enjoying video recording along with audio, so that shows up in the blog as well.

    I’m also a guitar nut. I love big ones and little ones, handmades and factory guitars, cheap ones and expensive ones. So I’ll be sharing the fun of exploring guitars as well, along with the challenges of amplifying acoustic guitars for live performance.

    Welcome!

Philosophy

    My recording philosophy is pragmatic, skeptical, not super critical. After all, the performance is by far the most important component of a track, and every aspect of any recording is a matter of taste.

    But I do like to know “about stuff.” Back in hifi days I learned about double blind testing. I learned that we humans can easily hear differences that don’t really exist. The more I’ve learned about our human auditory system, the more I’m skeptical of what people say they hear, especially if they claim that a particular microphone or preamp or cable has some magical property.

    I’ve only been recording since 2001, and when I started I found the usual places on the internet. I sought advice and accepted it, thought I would improve my recordings by using more expensive equipment. It didn’t work.

    Two things that did seem to lead to better recordings were experience and room treatment. Getting an appealing sound is the combination of many small details, and learning those details only comes from experience. Amd the sound of the recording space is obviously a big factor.

    I’ve only recorded seriously using digital technology, but I remember trying to record rehearsals and gigs back in analog days. I don’t have any nostalgia for analog recording and playback systems at all. I think even low end digital systems can capture marvelous recordings. So when I look at gear, I look for good specs: low noise, broad flat frequency response, wide dynamic range, low distortion. I’m not interested in colorful components, mics and preamps with a sound, I want the sound to be the sound of my guitar.

    But the last word is that I’m just learning and I hope you find something useful in my posts.