I have found pyroomacoustics very useful while I have been trying to simulate acoustics for a recording studio I am constructing. It uses ray tracing and image source model. I wonder if anyone else here anybody else doing acoustic simulation, and what tools/techniques you have been using? submitted by /u/johnman1016 [visit reddit] [comments ..read more

Hi everyone, I got a question on my dsp course and I need some help. I have to design a linear phase high pass filter with Bartlett window of the lowest order. with the following conditions: w(cutoff)=5*pi/6 at w1=5.2*pi/6 we got a max attenuation of 1 db. at w2=4.8*pi/6 we got a min attenuation of 20 db. I need to design and scheme a minimal execution of it. I thought about multiplying the ideal high pass filter by the window, and then we know that multiplication on the time domain is a periodic convolution on the frequency domain, then I should take the absolute value of it on w1 and w2 and ..read more

Slower clocks mean lower power consumption, any other benefits? Could the multirate filter be more sharper than the single-rate filter? submitted by /u/Chemical_Spirit_5981 [visit reddit] [comments ..read more

Hi everyone!! I know there's a lot of problem statements online, but I figured here since a lot of y'all work in the industry id get more relevant answers. Is there any existing problem statement with respect to audio signal processing and biomedical/medical field that can be explored more for a undergrad? I'm quite clear w dsp fundamentals and wanted to apply to a real time project! Would love to hear your opinions thanks submitted by /u/Possible_Potato_6543 [visit reddit] [comments ..read more

I have an interview for a camera imaging ASIC design engineer next week & I'm currently working as an ASIC design engineer. I mostly deal with Ethernet and DDR controllers in my past and current experience. I have nowhere mentioned DSP algorithms in my resume(I was surprised when I got a call). Since the role I am interviewing emphasizes DSP algorithms in their roles & responsibilities. Could anyone help /share their interview experience & what kind of questions I might expect? PS:- It's been over a year since I looked into any DSP stuff. submitted by /u/emvinayak [visit reddit ..read more

submitted by /u/Brilliant-Refuse-936 [visit reddit] [comments ..read more

I mainly come from an audio DSP background and want to learn more about DSP for communications before I graduate. I have slight familiarity with some topics such as QAM, OFDM, and wireline channels but lack the fundamentals. Could anyone offer some resources on where to learn comms? Another thing I struggle with is that there are so many different topics and I don't know how they relate to each other, for example is phase, frequency, or amplitude modulation used in OFDM? I'm also interested in playing around with software defined radios for learning purposes - any info about what they're used ..read more

Page 246 in multirate systems and filter banks by P. P. Vaidyanathanm. https://preview.redd.it/hqtkewy8f8vc1.png?width=600&format=png&auto=webp&s=25da57c8ac1937d0c46f5a90a4825d378a3ed64c The sampling in the first stage should have brought the aliases already, why does the author claim that it is an aliaa-free system? S(z^M) should be a function of z^M, which cannot mitigate the aliases, for example, s(z^M)=z^M or even s(z^M)=1. The full book is here: https://authors.library.caltech.edu/records/rmhds-22q28 submitted by /u/Chemical_Spirit_5981 [visit reddit] [comments ..read more

So I will have like 8 audio channels with some DSP band pass . Should I look at arm m4 or better cores or look at Arm R4 or better cores? Asking since I am not sure what would be better. Yes I am also making the pcb. submitted by /u/immortal_sniper1 [visit reddit] [comments ..read more

It is relatively easy to understand why you can't have less than M + 1 coefficients for a signal of order M if those coefficients are c_0, c_1, ..., c_M. But what about a case of, for example, c_0, c_1, ..., c_K, c_L, ..., c_N. How does one prove that the total number of the coefficients in this case cannot be less than M + 1 too? I've asked a similar question on DSP StackExchange with some formulas, so here's the link: https://dsp.stackexchange.com/q/93578/69306. Thanks in advance to everyone who tries to help me! submitted by /u/Tigozawr [visit reddit] [comments ..read more