Where is that low note coming from ?
Hi David,
In LOA 4 Tongue Blocking Study 3 - Exercises MP3, at 01:43 to 01:45 there is what sounds like a Db note during the flutter. Where is that coming from? Are you not using a G harp?
Hi David,
I want to try this again.
Here's my original post on the subject:
"In LOA 4 Tongue Blocking Study 3 - Exercises MP3, at 01:43 to 01:45 there is what sounds like a Db note during the flutter. Where is that coming from? Are you not using a G harp?"
A couple of changes to the original post:
1. The recording times given were from "Section 1 - Flutter - Example 1.2" and not "Exercises MP3" as originally stated.
2. The note is actually closer to a D3 rather than the Db as originally stated.
Actually, I hear this phantom note anywhere you play the flutter but I focused on the 5 draw flutter. (The times it occurs on the "Ex MP3" is 1:12 - 1:14 and 1:16 - 1:18.)
Here is what I am thinking:
The notes involved with that particular flutter are:
5 C5 523.251 Hz
4 A4 440 Hz
3 F#4 369.99 Hz
2 D4 293.665 Hz
The note I hear is very close to the 1 draw on a low C harp (D3 146.832)
It turns out that A4 - D4 = 440 - 293.665 = 146.335 Hz (Very close to the D3 phantom note.)
I'm wondering if something in your recording chain is causing this hetrodyning difference frequency. Especially if there is any nonlinear distortion.
I know this is has nothing to do with learning the study song but I am curious.
Thank you,
Bill
Hello Bill. I am playing the 5 draw flutter, which is D F# A C, with the C on the top, as you noted. When I listen to the recording on my Mac with earbuds, I don't hear it (though earbuds are not good at reproducing bass). What comes to mind is that you're hearing the Difference Tone. Do some research on the difference tone and see if it yields the pitch that you're hearing (I believe that the math works out for it to be it). We commonly hear difference tones when playing amplified, but an acute ear can hear it acoustically as well. Grab your amp and play a 3 draw and 4 draw at the same time (G harp would be good). If your amp is good, and your cupping good, you'll hear a note two octaves below your 2 draw pitch sound. This third note created is called the difference tone.
Hello Bill_D. No, no Db. Yes, playing a G harmonica.