[sdiy] Drum sample playback

[Mike HEQX]

So freaking cool. It has been on my list for a while. I need to step up 
my game.


On 4/13/2017 2:46 AM, Quincas Moreira wrote:
> Hey! So, I got asked by Sparkfun to do a video for the Tsunami, so I 
> went ahead and made a module with it! It's indeed an awesome little 
> board, check it out:
> https://youtu.be/wulg6GZj6oE
> Best
> Q
>
>
>
> On Sat, Feb 18, 2017 at 12:12 PM, <paula at synth.net 
> <mailto:paula at synth.net>> wrote:
>
>     Quincas,
>
>      Would love to help, but at the moment I can't due to legalities.
>     If someone does make one, I'd be very interested (depending on spec).
>
>     Paula
>
>
>     On 2017-02-18 15:13, Quincas Moreira wrote:
>
>         very cool! Let's make a Euro panel for it, who's game?
>
>         It does another thing that VST/Au cannot...  Function without
>         a host
>         computer :)
>
>         On Sat, Feb 18, 2017 at 5:46 AM, Matthias Puech
>         <matthias.puech at gmail.com <mailto:matthias.puech at gmail.com>>
>         wrote:
>
>             Hi,
>
>             Yes, it looks like an interesting little board. What is that
>             impressive though?
>             I didn't know about this particular codec, it could be
>             handy in a
>             module design. Now if I put aside SDIO throughput (which I
>             don't
>             know much about), it doesn't seem that surprising to be
>             able to read
>             32 samples at the same time. We can already achieve 32+
>             linearly
>             interpolated voices on an STM32F4 (Cortex-M4 @ 200MHz) at
>             48kHz, and
>             the M7 has far better performance (300MHz, better FPU) so
>             there
>             should be room for better interpolation (or more
>             polyphony). Am I
>             missing something?
>
>             Best,
>             -m
>
>             On Fri, Feb 17, 2017 at 11:45 PM, Richie Burnett
>             <rburnett at richieburnett.co.uk
>             <mailto:rburnett at richieburnett.co.uk>> wrote:
>
>                 That's impressive!
>
>                 It's usually the resampling that takes the majority of
>                 CPU cycles
>                 with sample playback. So for a given amount of CPU
>                 power you can
>                 either have tons of voices that alias like hell when
>                 you transpose
>                 the samples or a quarter of those voices with nice
>                 clean detuning
>                 of the samples. I suspect this is where they might
>                 have cut
>                 corners.
>
>                 Of course if you want to pitch up a Hi-hat sample and
>                 the playback
>                 module has crap resampling, then there's nothing to
>                 stop you
>                 transposing the sample in a decent audio processing
>                 package first
>                 before sticking it on the sd card.  (That's what I
>                 used to do with
>                 my old Akai S01 sampler that had crappy linear
>                 interpolation, and
>                 turned hi-hat samples into rustling paper bag sounds
>                 as soon as
>                 you touched the transpose control!)
>
>                 -Richie,
>
>                 Sent from my Xperia SP on O2
>
>                 ---- paula at synth.net <mailto:paula at synth.net> wrote ----
>
>                     OMG,
>
>                     anyone seen this?
>
>                     https://www.sparkfun.com/products/13810
>                     <https://www.sparkfun.com/products/13810> [1]
>
>                     upto 32 samples playing back at the same time,
>                     built in MIDI, 8
>
>                 outputs
>
>                     which can dynamically assign. Just WOAH
>
>                     Paula
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>
>         --
>         Quincas Moreira
>         Test Pilot at VBrazil Modular
>
>         Links:
>         ------
>         [1] https://www.sparkfun.com/products/13810
>         <https://www.sparkfun.com/products/13810>
>         [2] http://synth-diy.org/mailman/listinfo/synth-diy
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>
>
>
> -- 
> Quincas Moreira
> Test Pilot at VBrazil Modular
>
>
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