Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread R.L. Horn
On Fri, 21 Aug 2015, Marcus Weseloh wrote: 2015-08-21 14:15 GMT+02:00 Herschel Karunaratne : There is another thing which forgot to mention. I accidentally changed the sample rate to 4800 using -r ,and could play any amount of notes simultaneously and no crackles at all but there is long latenc

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Element Green
Hello, I haven't been following this thread too closely, so apologies if any of this is duplicate information. The multiple core feature you are talking about can be set by passing "-o synth.cpu-cores=2" to use 2 CPU cores. Back when I initially implemented this, it did indeed provide for an inc

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Marcus Weseloh
Hi again, One idea, as the A20 is a dual core chip: FS has the option to use multiple processors for synthesis (somewhere on the man page). I have avoided using that option so far, because the docs say that it adds a little bit of extra latency and I don't need a that much polyphony anyway. But i

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Aere Greenway
On 08/21/2015 08:48 AM, Herschel Karunaratne wrote: I using this to generate pipe organ tones so my swell has 13 stops. I need to play several or all voices simultaneously and that's why I am generating all 13 tones when a single key is pressed and control the stop ON/OFF by adjusting the volum

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Marcus Weseloh
Hi Herschel, 2015-08-21 16:48 GMT+02:00 Herschel Karunaratne : > I using this to generate pipe organ tones so my swell has 13 stops. I need > to play several or all voices simultaneously and that's why I am generating > all 13 tones when a single key is pressed and control the stop ON/OFF by > adj

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Herschel Karunaratne
Hi Marcus, I using this to generate pipe organ tones so my swell has 13 stops. I need to play several or all voices simultaneously and that's why I am generating all 13 tones when a single key is pressed and control the stop ON/OFF by adjusting the volume using cc 0 7 xx command. Is this the co

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Marcus Weseloh
Hi Herschel, 2015-08-21 14:15 GMT+02:00 Herschel Karunaratne : > There is another thing which forgot to mention. I accidentally changed the > sample rate to 4800 using -r ,and could play any amount of notes > simultaneously and no crackles at all but there is long latency. Well, assuming you real

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Herschel Karunaratne
Hi Marcus,There is another thing which forgot to mention. I accidentally changed the sample rate to 4800 using -r ,and could play any amount of notes simultaneously and no crackles at all but there is long latency. Regards Herschel On Friday, 21 August 2015, 17:34, Herschel Karunaratn

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Herschel Karunaratne
Hi Marcus, Thanks for the information and I was thinking of recompile the Sunxi codec and the kernel too. I will do this. Also is there any other way to use 13 voices simultaneously other than method I am doing? Any suggestions? Regards Herschel On Friday, 21 August 2015, 13:33, Marcus

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Marcus Weseloh
Hi Herschel, 2015-08-21 9:28 GMT+02:00 Herschel Karunaratne : > My arm board is Alwinner A20, 1GHz, 2GB RAM etc., so it should work with > these resources. I'm using Fluidsynth on similar hardware: A20 Allwinner, 1GHz, 512MB RAM. I'm not sure what kernel the Linaro Ubuntu distro is using for your

Re: [fluid-dev] Crackling sound when more than 4 notes are played simultaneously

2015-08-21 Thread Herschel Karunaratne
Hi Aere, Thanks for your reply. I did create a file earlier but there was no improvement. I'm not sure whether I re-started the machine. I will do this again and let you know the how it goes. I was actually suspecting "Requested 16 periods, got 8 instead" - can this be the issue? My arm board