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  • Blackaddr's Avatar
    07-10-2021, 12:03 PM
    I'm surprised the extra bit of polybleps math on the edge transitions are killing your performance. Maybe it's not implemented quite right? By re-writing polyBleps to eliminate division, or used fixed-point arithmetic,...
    6 replies | 205 view(s)
  • Blackaddr's Avatar
    07-07-2021, 10:53 AM
    Try turning off the CODEC's HPF. A number of codec have dynamic HPF that attempt to to remove the DC offset but the that that the filter is not static results in noise artefacts. The SGTL5000 does the exact same thing...
    1 replies | 125 view(s)
  • Blackaddr's Avatar
    07-02-2021, 12:37 PM
    If you're worried about damage, the problem isn't using headphone outputs to drive something you're not supposed (people do this all the time in the real world. Sometimes you break stuff, sometimes you don't). The real...
    8 replies | 307 view(s)
  • Blackaddr's Avatar
    06-26-2021, 12:20 PM
    Hi Frank, Congrats on building your board! When you switch to HB, and you get the interference, if you turn down the volume knob does it go away? Cheaper guitars aren't known for the best wiring or shield. So a...
    154 replies | 57166 view(s)
  • Blackaddr's Avatar
    06-11-2021, 03:07 PM
    I can also vouche to take a look at Chip's OpenAudio extentions rather than start from scratch. However, many effect developers also find it easier to simply convert to/from float in side their update() function and...
    6 replies | 420 view(s)
  • Blackaddr's Avatar
    06-09-2021, 12:51 PM
    As someone else mentioned, the program button is also available on header pins on the T4.1. I would highly recommend bringing this signal out to an enclosure mounted button. A small tactile switch like the kind use to...
    6 replies | 437 view(s)
  • Blackaddr's Avatar
    06-07-2021, 10:59 AM
    RA9 is not populated, I added the footprint in case I needed some frequency tweaking options, but didn't end up using it. The circuit structure between the op-amp and the ADC input on the TGA Pro is a passive...
    154 replies | 57166 view(s)
  • Blackaddr's Avatar
    06-06-2021, 11:18 AM
    Hi PerM, just to give you a heads up, the SNR of the ADC for the WM8731 is spec'd at 90dB. To convert this to bits, divide by 6db. 90 / 6 = 15 bits. (NOTE: 6db = a factor of 2, ie. one-bit). So the WM8731 will have...
    6 replies | 321 view(s)
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About Blackaddr
Engineer by day, Maker by night.
Guitar Digital Modelling


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band limited oscillator with T3.2 07-10-2021 12:03 PM
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