Re: [PD] High CPU usage when tracks are muted (Raspberry Pi)

2013-05-06 Thread Joe White
I made this little helper abstraction for dealing with fades/switches at the same time. You can specify the ramp up/down time and even add a delay before sending the ramp. I find it use it everywhere now. Maybe someone will find it useful Cheers, Joe On 5 May 2013 20:48, Roman Haefeli

[PD] High CPU usage when tracks are muted (Raspberry Pi)

2013-05-05 Thread Halfdan Mouritzen
Dear PD Friends, We are building a collaborative music sculpture, using five Raspberry Pi's to each run a seperate instrument / HID. Everything is very well, they each run a minimal Arch installation and boot up into PD without a GUI. One machine we are building at the moment, is just a very

Re: [PD] High CPU usage when tracks are muted (Raspberry Pi)

2013-05-05 Thread Halfdan Mouritzen
On 5 May 2013 18:42, Dan Wilcox danomat...@gmail.com wrote: Even though you don't have audio coming out when you're muting, you're still doing dsp. Yes, what I don't understand though is _why_ we see such an increase in CPU load, when the channels are muted. You should put each channel in a

Re: [PD] High CPU usage when tracks are muted (Raspberry Pi)

2013-05-05 Thread Martin Peach
On 2013-05-05 13:52, Halfdan Mouritzen wrote: Yes, what I don't understand though is _why_ we see such an increase in CPU load, when the channels are muted. Could it be that denormals are produced when the line gets close to 0? Depending on how the floating point is set up that could cause a

Re: [PD] High CPU usage when tracks are muted (Raspberry Pi)

2013-05-05 Thread Julian Brooks
Yep good call, maybe a Pd update might fix it (pre-compiled version for RPi on Miller's webpage http://crca.ucsd.edu/~msp/software.html ) as from 0.44-2 the denormal thing has (apparently) been sorted. On 5 May 2013 18:58, Martin Peach martin.pe...@sympatico.ca wrote: On 2013-05-05 13:52,

Re: [PD] High CPU usage when tracks are muted (Raspberry Pi)

2013-05-05 Thread Pagano, Patrick
This might be the wrong direction but for a multichannel installation I has great success with Eric Lyon's player~ abstraction in his pd potpourri set. Not sure if it will work since its an external but I had 20+ players firing off and never had a glitch. Cheers~ pp On May 5, 2013, at 2:37 PM,

Re: [PD] High CPU usage when tracks are muted (Raspberry Pi)

2013-05-05 Thread Roman Haefeli
On Son, 2013-05-05 at 12:42 -0400, Dan Wilcox wrote: Even though you don't have audio coming out when you're muting, you're still doing dsp. You should put each channel in a sub patch or abstraction and use [switch~] to enable/disable that abstraction. This is super important with low resource