-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat
response
On 1/4/13 1:11 PM, Thomas Young wrote:
someone tell me what it was about
In a nutshell...
Q: What is the equation for the coefficients of a peaking EQ biquad filter
with constant 0 dB peak gain
On 4/01/2013 4:34 AM, Thomas Young wrote:
However I was hoping to avoid scaling the output since if I have to
do that then I might as well just change the wet/dry mix with the
original signal for essentially the same effect and less messing
about.
I read quickly this morning and missed
: 04 January 2013 09:26
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
On 4/01/2013 4:34 AM, Thomas Young wrote:
However I was hoping to avoid scaling the output since if I have to
do that then I might as well just change
Sent: 04 January 2013 10:33
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
Hi Nigel, which analogue prototype are you referring to when you suggest
multiplying denominator coefficients by the gain factor, the peaking one
-dsp] Lerping
Biquad coefficients to a flat response
On 4/01/2013 4:05 AM, Thomas Young wrote:
Is there a way to modify the bandpass coefficient
equations in the cookbook (the one from the analogue
prototype H(s) = s / (s^2 + s/Q + 1)) such that the gain
of the stopband may be specified? I want
DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
Hi Nigel, which analogue prototype are you referring to when you suggest
multiplying denominator coefficients by the gain factor, the peaking one?
-Original Message-
From: music-dsp-boun...@music.columbia.edu
2013 10:33
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat
response
Hi Nigel, which analogue prototype are you referring to when you suggest
multiplying denominator coefficients by the gain factor, the peaking one?
-Original
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
looks like i came here late. someone tell me what it was about.
admittedly, i didn't completely understand from a cursory reading.
the only difference between the two BPFs in the cookbook is that of a constant
gain factor
-johnson
Sent: 04 January 2013 18:25
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
On 1/4/13 1:11 PM, Thomas Young wrote:
someone tell me what it was about
In a nutshell...
Q: What is the equation for the coefficients of a peaking
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat
response
looks like i came here late. someone tell me what it was about.
admittedly, i didn't completely understand from a cursory reading.
the only difference between the two BPFs
One for RBJ if he's back from his hols :) or anyone kind enough to answer of
course...
Is there a way to modify the bandpass coefficient equations in the cookbook
(the one from the analogue prototype H(s) = s / (s^2 + s/Q + 1)) such that the
gain of the stopband may be specified? I want to be
On 4/01/2013 4:05 AM, Thomas Young wrote:
Is there a way to modify the bandpass coefficient equations in the
cookbook (the one from the analogue prototype H(s) = s / (s^2 + s/Q +
1)) such that the gain of the stopband may be specified? I want to be
able
I'm pretty sure that the BLT bandpass
The zeros are at DC and Nyquist because the numerator is s…Basically, you
need to adjust the zeros based on the pole positions (both angle and Q) and the
desired stop band spec. I'm not 100% sure what Thomas is after, but I suspect
it's just an inversion of band reject (swap the poles and
] Lerping Biquad coefficients to a flat response
On 4/01/2013 4:05 AM, Thomas Young wrote:
Is there a way to modify the bandpass coefficient equations in the
cookbook (the one from the analogue prototype H(s) = s / (s^2 + s/Q +
1)) such that the gain of the stopband may be specified? I want
2013 18:48
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
Thomas-it's a matter of manipulating the A and Q relationships in the numerator
and denominator of the peaking EQ analog prototypes. I'm not as good in
thinking in the s
Message-
From: music-dsp-boun...@music.columbia.edu
[mailto:music-dsp-boun...@music.columbia.edu] On Behalf Of Nigel Redmon
Sent: 03 January 2013 18:48
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
Thomas-it's a matter
] On Behalf Of Nigel Redmon
Sent: 03 January 2013 18:48
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
Thomas-it's a matter of manipulating the A and Q relationships in the
numerator and denominator of the peaking EQ analog
: music-dsp-boun...@music.columbia.edu
[mailto:music-dsp-boun...@music.columbia.edu] On Behalf Of Nigel Redmon
Sent: 03 January 2013 18:48
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
Thomas-it's a matter of manipulating
-Original Message-
From: music-dsp-boun...@music.columbia.edu
[mailto:music-dsp-boun...@music.columbia.edu] On Behalf Of Nigel Redmon
Sent: 03 January 2013 18:48
To: A discussion list for music-related DSP
Subject: Re: [music-dsp] Lerping Biquad coefficients to a flat response
Thomas
Hi Thomas,
Replying to both of your messages at once...
On 4/01/2013 4:34 AM, Thomas Young wrote:
However I was hoping to avoid scaling the output since if I have to
do that then I might as well just change the wet/dry mix with the
original signal for essentially the same effect and less
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