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  1. How to compute dBFS? - Signal Processing Stack Exchange

    Apr 22, 2013 · I asked myself how to compute dBFS (dB full scale) from a value of sample between 1 and -1? and in general?

  2. What additional inputs are required to convert dBFS to dB SPL?

    Apr 13, 2023 · It is probably very well known that dBFS cannot be directly converted to dB SPL without knowing other information such as the technical specifications of the microphone. The questions are: …

  3. Converting raw I/Q to dB - Signal Processing Stack Exchange

    Dec 14, 2014 · If your hardware driver takes the usual floating-point convention of the absolute extreme sample values being from −1 to +1, then you can say that your dB power values are dBFS — …

  4. What is the meaning of dbFS/LSB - Signal Processing Stack Exchange

    Jan 7, 2022 · The resolution in dB/LSB can be thought of as a multiplicator. With 1dB/LSB (Least Significant Bit), the dBFS-Value can be directly obtainend by reading the register. So, an 8Bit …

  5. Calculating dBFS for I/Q - Signal Processing Stack Exchange

    0 I'm trying to figure out how to calculate the dBFS for a complex input. I have an AD9361 part which has a 16-bit A/D and I believe outputs I and Q samples. Now I know you can calculate the dBFS for a …

  6. FFT to spectrum in decibel - Signal Processing Stack Exchange

    Jul 11, 2016 · Question: how to have an absolute, canonical dB d B values from a FFT, that makes that a pure 0 dBFS 0 dBFS sinewave has a peak of 0 dB 0 dB in the spectrum display ? More generally, …

  7. Units of 6.02*N + 1.76 as an FFT noise floor

    Jan 9, 2023 · More details: Quantization noise is well approximated as a uniform white noise, from which we derive the equation for the total power due to quantization noise relative to the power of a full …

  8. Newest 'dbfs' Questions - Signal Processing Stack Exchange

    How to compute dBFS from rms-values if the samples exceed 32bits For a first approach on audio-sampling I'm currently working with the raspberry pi's pcm pins and MEMS-microphones, using the …

  9. What is the audible level for digital audio dB units?

    Jul 24, 2023 · What is the audible level for digital audio dB units? I was looking at a soundwave from an mp3 file. I am using the "Sonic Visualizer" app available on Linux. The amplitude is between ~ -...

  10. How to convert digital value from MEMS mic to dB

    Jan 24, 2024 · This will give you dBFS values. To convert to dBSPL, refer to the specs: An acoustic input signal of a 1 kHz sine wave at 94 dB SPL applied to the ICS-52000 results in an output signal …