12 Questions 38 Answers 0 Followers
Questions related from Abu Dzarr
I was working with a new (old model) accelerometer without signal conditioning or amplification and I am picking up a ~50Hz sine wave acceleration (on FFT) when holding it in my hand. The signal...
25 June 2015 1,968 8 View
I wanted to cite the reference for the %contribution. GRR=GRR9. AIAG only provided the guidelines on %StudVar and ndc. Who first recommended the limits for...
07 April 2015 2,251 2 View
I have performed a gage analysis using standard sample size of 30 parts, 3 operators and 3 repeats. The result from Minitab is attached. The 95% CI was calculated separately using modified...
09 March 2015 421 3 View
Knowles BU7135 is extensively used in surface acceleration (SAL) measurement in speech related study. By the way, the acceleration data is in the range of milli-gravity (mg). Piezoelectric...
21 February 2015 4,557 3 View
The reference cell line (as above) from ATCC turned turbid on D3 upon thawing. I managed to salvage the cells with 2500U/mL of Penicillin/streptomycin. The bacterial culture from supernatant...
27 November 2013 753 3 View
ATCC recommends limiting up to passage 5 (cancer cell lines) for cell culture studies in order to avoid significant genetic drift from reference cell line. Every time a cell culture is...
24 September 2013 5,643 2 View
18 months ago, I purchased Apex440 a Class-A FET cardioids condenser microphone with USB output directly connecting to a computer from frontendstudio for voice analysis study. It appeared to me...
14 July 2013 2,088 0 View
Is anyone aware of any work being done looking at whether the formant frequencies of a target vowel varies or remained stable during continuous speech. I tried to search but failed to come...
16 May 2013 2,258 12 View
When working with /i/ vowel in PRAAT as seen in the attachment, PRAAT gives F1 and F2 values which are very close within around 270/365Hz. This persist despite twiddling on the number of formant...
03 January 2013 2,513 4 View
I’m currently doing research investigating endogenously generated whole body vibrations. Firstly, I would like to prove that vibration can be detected on the skeletal system (using accelerometer)...
20 September 2012 7,397 8 View
I have come to understand that both FFT (not specific to voice only) and LPC are meant to break down voice signals into its wave components. The FFT algorithm (representing DFT) deconvolutes...
17 September 2012 3,249 13 View
I am trying to identify whether signals measured via accelerometer on the ankle bone, while someone is talking, is actually derived from his or her own voice transmitting through bone conduction....
11 September 2012 4,229 4 View
