Forums > MaxMSP

CPU Efficient alternatives to play~ ?

November 24, 2006 | 6:00 pm

hi,

I’m building a granular synth thingie that uses poly~ to have a dozen or so play~ objects read out a soundfile at different points in time. my issue is that play~ seems to use the same amount of CPU no matter if it outputs 1 or 2 channels of a 2 channel buffer. I would expect that reading only 1 channel would roughly be half as cpu intensive, or not?

previously, I had used the xplay~ external, mainly because it uses about half the CPU for reading 1 channel compared to play~. But xplay~ isnt UB yet, and this is important in my case.

So what I’m wondering if there’s a playback object or external that does the follwoing:

- Is Universal Binary
- Offers interpolation to avoid aliasing (so no "index~")
- Doesnt waste CPU when reading only one channel instead of two

and

- Lets one specifiy which of the two channels of a two channel buffer to play …

thanks for any advice
axel


November 24, 2006 | 6:23 pm

Am 24.11.2006 um 19:01 schrieb axelebert:
>
> previously, I had used the xplay~ external, mainly because it uses
> about half the CPU for reading 1 channel compared to play~. But
> xplay~ isnt UB yet, and this is important in my case.
>

does it have to be UB, or is a pure Intel build ok too?

greetings,
Thomas


Thomas Grill

http://grrrr.org


November 24, 2006 | 6:45 pm

well, the patch will eventually be a free pluggo, and therefore should be as universally compatible as possible. so intel-only won’t do it unfortunately.

thanks for replying.
axel


November 24, 2006 | 8:45 pm

Hi all,
since i got my new Macbook today, here are beta builds of three of my
externals.

http://grrrr.org/ext/beta/max/osx

I have not thoroughly tested them, feedback is very welcome.

all the best,
Thomas


Thomas Grill

http://grrrr.org


November 24, 2006 | 9:11 pm

cool, this is good news :)

I’ll give them a try.

thanks


November 24, 2006 | 9:15 pm

Thank you so much; I’ be playing with xsample~ this weekend for sure,
Cheers
Roger

On 24/11/06 20:45, "Thomas Grill" wrote:

> Hi all,
> since i got my new Macbook today, here are beta builds of three of my
> externals.
> http://grrrr.org/ext/beta/max/osx
>
> I have not thoroughly tested them, feedback is very welcome.
>
> all the best,
> Thomas
>
> –
> Thomas Grill
> http://grrrr.org
>
>


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