Questions tagged [scaling]

46 questions
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What's the minimum decibel value?

I'm trying to scale wave amplitude (0-1) to perceived loudness (still 0-1). The decibel scale seems to be unbounded. For my audio, the amplitude 1 represents a decibel $d$ - i.e. the audio is being played at volume $d$. But what would the decibel be…
Tobi Akinyemi
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Software-Emulated Amplifier: Cracking while change Volume

I'm developing a software emulated analog synthesizer in the style of Euro Rack Modules. I have a problem with the volume amplifier. Whenever I control the volume button via mouse/hand/manually rapidly (fast low and up, or fast from low to middle),…
Arakis
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Scaling of a rect function,drawing of signals

Im trying to understand on how the drawing of signals (time shifting,scaling...) works. This one example is confusing me, and a bit of help would be much appreciated. This is the starting Signal We're susposed to give an $x(t)$ expression using…
cody1
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Audio time scaling using a phase vocoder

I've implemented audio time scaling using a phase vocoder approach because I wanted to answer this question here (and learn something in the process). Since that question has been closed, I may as well ask a new question about audio time…
dsp_user
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what is multiresolution

I have gone to wavelets course and up to my knowledge, changing the scale and translation of wavelets produces multiresolution images. is this correct or can someone tell me what is multiresolution analysis in images? Does multiresolution directly…
Emerson EJ
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How to scale a signal to get desired variance

I am new to dsp, and I'd really appricate it if someone please help me with this problem. I guess it's a basic simple question, but I cannot get it write. Here is the question: The variance of a random signal generated using MATLAB command randn is…
Niousha
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