### Uli Brüggemann (@UliBru)

see www.audiovero.de

## Re: FIR allpass with desired group delay

Hi Rick,zero radians at zero Hz is fulfilledminus 2*pi radians at 24 kHz is fulfilled.But minus pi radians happens at the frequency (46.875 Hz) which is entered...

## Re: FIR allpass with desired group delay

The samplerate should be the same. So SRC is not a solution right now.I don't understand what you mean with "suddenly flies". The calculated group delay is shown...

## Re: FIR allpass with desired group delay

Hello Rick,here is e.g. the 2nd order allpass (EQ cookbook) with f= 46.875 Hz and Q=4. The samplerate is 48 kHz. Thus f is on a frequency bin, cycle time is 1024...

## Re: FIR allpass with desired group delay

I'm sorry but you have not understood my question.It is not dealing with a simple delay line with x samples. Such a delay line delays all frequencies equally.But...

## FIR allpass with desired group delay

Hello, I have a question about designing a reasonable FIR allpass filter with a desired group delay. Example: a FIR filter is designed as finite sequence from a...

## Re: FIR filtering vs linear convolution

{1,4,10,20,25,24,16} is the correct answer. So the other calculation is flawed.

## Re: Hilbert-Huang Transform

https://cran.r-project.org/package=hht

## Re: What is the most efficient way to represent or approximate a waveform?

With flac or other compression formats you can squeeze the storage space. And you can go back and forth without loss.- Uli

## Re: complex exponential - what Am I missing?

The basic formula issqr(sin(alpha)) + sqr(cos(alpha)) = 1Thus the correct formula for your example issqrt(sqr(sin(alpha)) + sqr(cos(alpha))) = 1

Use this form to contact UliBru

Before you can contact a member of the *Related Sites:

• You must be logged in (register here)
• You must confirm you email address