[sdiy] Drum sample playback

[Elaine Klopke]

This is very cool! I can see my list of projects growing exponentially.

Sent from my iPhone

> On Apr 13, 2017, at 1:46 AM, Quincas Moreira <quincas at gmail.com> 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> 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> 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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>>>>> 
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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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> 
> 
> 
> -- 
> Quincas Moreira
> Test Pilot at VBrazil Modular
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