[sdiy] Drum sample playback

[paula at synth.net]

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> 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> 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 wrote ----
>>> 
>>>> OMG,
>>>> 
>>>> anyone seen this?
>>>> 
>>>> 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
> [2] http://synth-diy.org/mailman/listinfo/synth-diy
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