# Frequency analysis
**URL:** https://qa.fmod.com/t/frequency-analysis/12000
**Category:** FMOD Engine
**Created:** [July 28, 2015, 9:54pm UTC](https://qa.fmod.com/t/frequency-analysis/12000 "2015-07-28T21:54:23Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Joseman](https://qa.fmod.com/u/Joseman)
#### Post date: [July 28, 2015, 9:54pm UTC](https://qa.fmod.com/t/frequency-analysis/12000/1 "2015-07-28T21:54:23Z")
Hi,
I’m new on FMOD and it looks very cool to me.
I’m trying to get a frequency spectrum with the low-level-api but I can’t find any information how this will work.
First I try this:
> **[Cutting Your Teeth on FMOD Part 4: Frequency Analysis, Graphic Equalizer,...](https://katyscode.wordpress.com/2013/01/16/cutting-your-teeth-on-fmod-part-4-frequency-analysis-graphic-equalizer-beat-detection-and-bpm-estimation/)**
>
> In this article, we shall look at how to do a frequency analysis of a playing song in FMOD and learn how to use this as the basis for a variety of useful applications. What is frequency analysis? N…
The Problem is that “Channel::getSpectrum(…)” no longer exist, or?
So… can anyone telle me how is the right way to to this with the new version?
Greez
Joseman
btw:
I hope my english is good enough…
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### Author:  [@nick1](https://qa.fmod.com/u/nick1)
#### Post date: [July 30, 2015, 1:09am UTC](https://qa.fmod.com/t/frequency-analysis/12000/2 "2015-07-30T01:09:14Z")
Create a FFT DSP and add it to the channel. You can then query the frequency domain data using DSP::getParameterData(FMOD\_DSP\_FFT\_SPECTRUMDATA, …)
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### Author:  [@Joseman](https://qa.fmod.com/u/Joseman)
#### Post date: [July 30, 2015, 8:59am UTC](https://qa.fmod.com/t/frequency-analysis/12000/3 "2015-07-30T08:59:55Z")
Hallo,
I’ve got it. Thanks.
The Code:
FMOD::DSP\* dsp;
mFMODSystem-\>createDSPByType(FMOD\_DSP\_TYPE::FMOD\_DSP\_TYPE\_FFT, &dsp);
mFMODSystem-\>playSound(mSound, 0, false, &channel);
channel-\>addDSP(FMOD\_DSP\_PARAMETER\_DATA\_TYPE\_FFT,dsp);
FMOD\_DSP\_PARAMETER\_FFT \*fft;
dsp-\>getParameterData(FMOD\_DSP\_FFT\_SPECTRUMDATA, (void \*\*)fft, 0, 0, 0);
for (int channel = 0; channel \< 1; channel++)
for (int bin = 0; binlength; ++bin)
float freqVal = fft-\>spectrum[channel][bin];
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### Author:  [@Lynne](https://qa.fmod.com/u/Lynne)
#### Post date: [May 17, 2016, 5:40am UTC](https://qa.fmod.com/t/frequency-analysis/12000/4 "2016-05-17T05:40:42Z")
> [@](#):
>
> Hallo,
>
> I’ve got it. Thanks.
> The Code:
>
> FMOD::DSP\* dsp;
> mFMODSystem-\>createDSPByType(FMOD\_DSP\_TYPE::FMOD\_DSP\_TYPE\_FFT, &dsp);
> mFMODSystem-\>playSound(mSound, 0, false, &channel);
> channel-\>addDSP(FMOD\_DSP\_PARAMETER\_DATA\_TYPE\_FFT,dsp);
> FMOD\_DSP\_PARAMETER\_FFT \*fft;
> dsp-\>getParameterData(FMOD\_DSP\_FFT\_SPECTRUMDATA, (void \*\*)fft, 0, 0, 0);
> for (int channel = 0; channel \< 1; channel++)
> for (int bin = 0; binlength; ++bin)
> float freqVal = fft-\>spectrum[channel][bin];
hello,can you write code complete?I’ve had the sample problem as you.