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October 16, 2009

Recording didgeridoo for Kosmopterix – part 4A

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Microphone and preamp sound tests with examples

Here I would now like to give some examples of recording didgeridoo so that words being used gain some meaning. I will try to keep myself from commenting these sound and less sound didgeridoo sound examples, so you can make your own judgment.

I want to point out some things before the show begins.

  1. When I recorded these files, they were for my needs only. At that time I did not think about posting them on the Internet so everyone can have benefit of it. They were made to satisfy me, and not any other condition. I say that because tests weren’t laboratoric with high level of quality control, but you can still get a lot out of them if you want to.
  2. I do this test/review/tutorial more for didgeridoo freaks than for gear freaks. Simply because I myself fall more in the first category, and because first category is lacking tests as this. With that in mind, I elaborate further these tests.
  3. It is VERY IMPORTANT that you adjust levels of the sound files if you want to compare properly. Otherwise, almost always louder clip will sound better, and that could be a really strange taste of sound… It is just a little adjustment in your player/DAW, but it means a world of a difference.
  4. I have recorded uncountable (well for computer it is countable and it is 1463) sound files before I started real recording, only for tests. I have tried to have an appropriate documentation – in my notebook and in my file names, but it is possible that I have made some mistakes. I have made a choice which I thought is not too big and not too useless.

How I recorded

I recorded a C didgeridoo I use very often, and which I used on 3 songs on Kosmopterix. I “know” the sound of this didgeridoo, and the test sounds I could repeat relatively similarly each time. I did test also on other didges and other songs, but it would take the focus out of this text. Recording was done in the room described at Chapter 3, always at the same spot. Didgeridoo was lifted about 35 cm from the ground and it had absorber underneath. More about that next time. I recorded at various distances, but chose to present 23cm distance as it is between the worlds of huge bass and clearness.  I am aware that not all of these mics sound the best on this distance, and to get the “best” results distances would probably have to be different for every mic, but then we are in too big story. So we keep it as simple as possible, and we go to the gear list.

Gear list

Microphones

- Large diaphragm condensers: Rode K2, Rode Classic 2, Violet – The wedge

- Ribbons: Royer R121, Royer R122V

- Dynamic: ElectroVoice ND 468

Preamps: Impact II – in-built mic preamps in TC Electronic StudioKonnekt 48, Universal Audio LA 610 signature edition, Rupert Neve Designs Portico 5032, Thermionic Culture Earlybird 1.2, Forssell Technologies SMP-2

Conversion: TC Electronic StudioKonnekt 48

Samples

There are not samples of every mic on every preamp, because I did not have all at the same time, but I believe you can follow the comparison anyway. Just one comment, because now is a good chance not to forget. I am often asked why I don’t  use dynamic microphone on didge. Here you can find the answer. If not, then maybe it is not your answer. I know the price difference here is very big, but even so, you can get a condenser mic sounding relatively similar to these (in opposition to dynamic mics) for much less money. And I still do use dynamic mic sometimes live, but we’ll discuss it later.

OK, here is the box with peculiar treasure – left click to play or right click and save link as(s) to download;

Enjoy your listening!

Du

in Recording didgeridoo

{ 4 comments… read them below or add one }

Pamela Mortensen October 24, 2009 at 19:41

Thank you again, Du for taking the time to share all of this. The sound samples are dramatically different. I’m finding that I’m warming up to the idea of possibly using a ribbon mic for recording. The sound sample of the Royer R22V (esp with the Forsell pre-amp) is convincing me to at least look into it more. Is the C didge in the sound samples balanced in the range of frequencies when heard without a mic? Or does it lean toward a certain frequency range? I ask because I have a didgeridoo that tends to lean a bit toward the low mid frequency range and has been a challenge to record.
many thanks,
Pam

Du November 4, 2009 at 07:30

Hello Pam!

I have thought and thought about your question. It is one of the best didge questions I ever got. Because it points to something esential and important in didge sound.
I dont have the ultimate answers, I am more in the set of answers which touch the question in some way.
1. To really hear what your didge sounds like, you have to go outside, in quiet, lift it from the ground, by more than little and let someone else play it to you. I never did this as a scientifical experiment. But notice that “sound of the didge” can be many various thing, depending on where you play and how you play.
2. I remember I had lot of problems with toots before I treated the room. They would always come out two times as loud then what I thought I played. Treating room is a great treat for your sound.
3.Lift the didge off the ground when you record (if you already haven’t) – more detail in next chapter of recording.
4. Sir Nixho (my soundman) advises mic placement game. More in the next chapter of…
5. I have looked at the C didge Stinkirum recording with schoeps (shich have flat freq response), and I did some freq analysis… I havent noticed any frequency too strong in the drone. In the whole song, i noticed second toot gets out the loudest, but that is not due to the toot loudness itself, but because of the way it was played. Some things regarding the instrument player can compensate, and some can’t. For example toot levels can be adjusted by the player. The humming or the hole in the drone can be much less compensated or not at all. That’s from my experience only, maybe with more skill you can do that also.
6. How do you experience low mid problems? As toot problem, or as humming, or… And can you be more specific what low mids that are. What is the note of your didge?

I hope this helped at least a little bit.

Du

Pamela Mortensen November 6, 2009 at 08:37

Hi Du,

Thank you for your response.

The didge is an F made out of ash. I’ve noticed with ash didges they have a more biting or “gritty” sound than most. Aside from that, the trouble spot is in the drone in the frequency range of 125Hz to 500Hz. I get the sneaking suspicion that it’s the shape of the didge on the inside that is creating this trouble spot. If so, then there’s not much that can be done.

I have heard it played by many people and it seems to sound fine live but when recorded the low mids come shining through. It also has a fair amount of bass for a higher didgeridoo which also may be adding to the trouble. I do record off the floor. The mic I use is a large diaphragm condenser that could be responding to this range unfavorably. Other didges I record with it seem fine.

I’ll keep experimenting using mic placement as well as room treatments and keep an eye out for your next article.

Many thanks for your help.
Pam

Du November 7, 2009 at 08:15

Hmmmm…
I believe I understand what you say.
I can think of three reasons of why it is not hearable live.
You never really heard yourself play in the audience.
The live space is usually so big, it is almost open, compared to the room where you record. Usually.
The sound quality live is sometimes too low to make any observation on the sound of didge.

I believe the last resort we have before changing a didge is some (heavy) EQing. But if the sound is so far from what you want, then I would probably change didge in your place.

If it is not a problem, can you please send me a sample of that sound to my mail, I would like to hear it, to try something and learn from it.

Thank you.

Du

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