Yes, I am building the shell. Interestingly, it stores the
executable in a hidden directory /fluidsynth/src/.libs
The console window only displays the shell and I see no error
messages. I'll need to figure out how to display internal printf
messages.
I am having problems buil
Hello Brad,
It sounds like you really need to get debugging working. From what you
said about the "interp num" command, I assume you are building the
fluidsynth command shell. Do you get any relevant error messages on the
console (probably the same terminal you are running fluidsynth from - but
Hi Brad,
Out of curiosity I checked that the interp setting actually had an
effect by adding printf statements to the relevant functions. The
fluid_rvoice_dsp_interpolate_linear function is called just fine if
you set "interp 1" in the FluidSynth shell. Seems like you've got a
problem with your de
So I recompiled the code and added a return at the beginning of the
function /fluid_rvoice_dsp_interpolate_linear (fluid_rvoice_dsp_t *voice)./
I also tried adding a for(;;) and a printf.
I tried several interp num commands (with num from 0 to 7) but it seems
it never gets to this function. A
Could you confirm that "interp 1" command line invokes the Linear
Interpolation function? Thanks, Brad
On Thu, Dec 31, 2015, at 01:36 PM, Element Green wrote:
> Hello Brad,
>
> To my knowledge the audio sample data is used as is in FluidSynth.
> The sample rate of the data and the current pitch
Hello Brad,
To my knowledge the audio sample data is used as is in FluidSynth. The
sample rate of the data and the current pitch of a voice determine how it
gets interpolated. So I believe your analysis is correct, that
interpolating between two identical values will yield that value with the
li
Hi Mr Green,
Yes, I am carrying the fractional part. In my case, it's 12 bits and
I shift right by 4 to get the upper 8 bits to index to the
coefficient table.
But let me cite an example, Suppose I have x[i]=100 and x[i+1]=100
(which occurs often in a lower note frequency).
Assume after looking
Hello Brad,
On Wed, Dec 30, 2015 at 7:42 PM, Brad Stewart wrote:
> Hi,
>
> I'm developing an embedded project using some of the code in FluidSynth.
>
> The target is an ARM Cortex M4 and am using integer math. Most of the
> coefficients are in Q15 format.
>
> So far, I'm able to generate diffe
