Good to hear that that helped. If you get an idea of how many voices can
be utilized without issue, you can set the synth.polyphony value to that
number. Once that number is reached, the synth will begin terminating
voices which are the least perceptible (well at least that is what it tries
to do
Hi all,
As suggested I changed the number of CPU cores to 2 (synth.cpu-cores=2) and
that did the trick. The number of simultaneous play of notes increased to 8
without any crackling noise. I still couldn't recompile the kernel though. Once
I do the kernel recompiling I will update.
Thanks for
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
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
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
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
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
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
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
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
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
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
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
Does your ARM processor have a floating point unit (FPU) ? FluidSynth is
heavily floating point based, so if you don't have hardware support for
floating point, it will get pretty poor performance. Check your CPU usage
and see if it is maxing out when you press that 5th key.
Best regards,
Eleme
On Wed, 19 Aug 2015 Herschel Karunaratne wrote:
My issue is when I start FS, I get the following warnings,
fluidsynth warning: Requested a period size of 64, got 1024 instead
fluidsynth warning: Requested 16 periods, got 8 instead
That's typical for a lot of bottom-of-the-line onboard audio ha
On 08/19/2015 06:30 AM, Herschel Karunaratne wrote:
I am using an ARM board with Ubuntu Linaro 13.04 and Alsa as the sound
and MIDI driver. I have a SF with 13 different instruments and playing
through USB MIDI. As the Fluidsynth starts I use CC 0 7 0 command
to reduce the volume of all the
I am using an ARM board with Ubuntu Linaro 13.04 and Alsa as the sound and MIDI
driver. I have aSF with 13 different instruments and playing through USB MIDI.
As the Fluidsynthstarts I use CC 0 7 0 command to reduce the volume of all
the MIDI channelsto zero. When a key is pressed the MIDI s
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