rough spectrum monitoring- faster than FFTW

Hello,
is there any way to get near-realtime audio spectrum info faster than FFT ?
For example- VST graphic 7 band EQ,with level meters for each band.. Start a New Thread

Hi,

By Real-time, do you mean the delay or processing power? If it is the delay then a FFT would delay as much as a band-pass filter depending on the FFT lenght. However, you can get more relevant audio spectrum ( by spacing the bands frequencies in log seperation) using a band-pass filter.

Regards,
Amit
----- Original Message ----
From: "s...@inbox.lv"
To: a...
Sent: Tuesday, 8 January, 2008 2:15:06 PM
Subject: [audiodsp] rough spectrum monitoring- faster than FFTW

Hello,
is there any way to get near-realtime audio spectrum info faster than FFT ?
For example- VST graphic 7 band EQ,with level meters for each band.. Start a New Thread

Hello,

Bandpass filters is the preferred approach.

Jaime Andr Aranguren Cardona
j...@ieee.org
j...@computer.org

----- Original Message ----
From: Amit
To: s...@inbox.lv; a...
Sent: Tuesday, January 15, 2008 12:00:50 AM
Subject: Re: [audiodsp] rough spectrum monitoring- faster than FFTW

Hi,

By Real-time, do you mean the delay or processing power? If it is the delay then a FFT would delay as much as a band-pass filter depending on the FFT lenght. However, you can get more relevant audio spectrum ( by spacing the bands frequencies in log seperation) using a band-pass filter.

Regards,
Amit

----- Original Message ----
From: "studiox@inbox. lv"
To: audiodsp@yahoogroup s.com
Sent: Tuesday, 8 January, 2008 2:15:06 PM
Subject: [audiodsp] rough spectrum monitoring- faster than FFTW

Hello,
is there any way to get near-realtime audio spectrum info faster than FFT ?
For example- VST graphic 7 band EQ,with level meters for each band..

Start a New Thread