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Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 3 years ago10 replieslatest reply 5 months ago1188 views
It's been a few months since the launch of the new forums.  Here are a few thoughts. The thumbsup and beer buttons    If there is one thing that could have a...

Moving average filter using Blockram

Started by Adira 4 hours ago1 replylatest reply 1 hour ago21 views
Hello, I implemented moving average filter using block ram. I have to filter the output of ADC. Sampling frequency of 8 bit ADC is 1.5Mhz. The ENOB for input...

Guaranteed stable sliding Goertzel implementation

Started by KimT 4 days ago11 replieslatest reply 18 hours ago106 views
Is it possible that a Chamberlin state variable implementation of the Sliding Goertzel (SG) resonator provides a stable implementation without introducing a dampening...

damping filter - finite stationary error

Started by max3031 1 week ago13 replieslatest reply 3 days ago81 views
Hi,I need to make a damping filter that will produce for the given input signal desired output.  In the desired output there is always some stationary error that...

FFmpeg Downsampling audio changes the spectral content

Started by Zeus101 1 week ago5 replieslatest reply 5 days ago82 views
Hi,I am new to the forum. Please pardon if I am not following forum rules. I am downsampling an audio using ffmpeg from 32KHz to 8Khz. The log frequency spectrogram...

Detecting the center frequency of a all-pass filtered sound

Started by pulpogarden 3 weeks ago6 replieslatest reply 1 week ago92 views
Hi,would it be possible to detect the center frequency at which an audio signal has been all-pass filtered from a recording of it? I assume that if you know the...

channel coding and puncturing

Started by Sharan123 2 weeks ago3 replieslatest reply 2 weeks ago67 views
with respect to puncturing associated with channel coding, I have a question.So, when a code word is punctured at the transmitted how does the receiver know the...

Extract pitch of irregular signal ?

Started by tunelabguy 1 month ago18 replieslatest reply 2 weeks ago119 views
I have tried both autocorrelation and a simple FFT power spectrum, but I cannot see how I can extract the tone of this audio signal: www.tunelab-world.com/irregular-engine.wav I...

amplitude of passband frequencies in FIR bandpass filter

Started by naumankalia 2 months ago9 replieslatest reply 2 weeks ago112 views
Hi allI wanted to generate broadband noise of specific amplitude for my simulations. To do so, i generated a random noise using MATLAB randn command and then design...

phase change

Started by Sharan123 4 weeks ago7 replieslatest reply 2 weeks ago132 views
Hi,Can anyone explain how to change the phase of a signal.For example, if I have a sine signal, how can I modify its phase?

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