Displaying 8 results from an estimated 8 matches for "udistrital".
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2017 Apr 12
2
CELT CFFT size configuration
Dear all,
Sorry for this simple and maybe stupid question, I'm working in the
implementation of opus for ARMv7e microcontroller using a library CMSIS/DSP
used to calculate the CFFT and MDCT based on the DCT-IV. my question is:
In the implementation of Celt you have used a fixed length CFFT equal to
1920, I want to know if there is some issues which can appear if a change
that configuration
2017 Apr 13
0
CELT CFFT size configuration
...ey algorithm.
If I'm correct. Means that technically, I could compute the fft using the
padding strategy and adjust the output such as kissfft done, someone could
confirm if that is possible.
thanks
cheers
On Wed, Apr 12, 2017 at 2:27 PM, Diego Alejandro Parra Guzman <
daparrag at correo.udistrital.edu.co> wrote:
> Dear all,
>
> Sorry for this simple and maybe stupid question, I'm working in the
> implementation of opus for ARMv7e microcontroller using a library CMSIS/DSP
> used to calculate the CFFT and MDCT based on the DCT-IV. my question is:
>
>
> In the im...
2017 May 03
0
MDCT implementation and his overlapped relationship
...a look/up
head delay of (2.5ms), (5ms) respectively , could you explain me>
1) those values are fixed.
1) how you guarantee those values independent of the architecture's
performance.
Thanks so much
On Tue, Apr 18, 2017 at 10:05 AM, Diego Alejandro Parra Guzman <
daparrag at correo.udistrital.edu.co> wrote:
> thanks you so much for your answer.
>
> On Thu, Apr 13, 2017 at 8:59 AM, Jean-Marc Valin <jmvalin at jmvalin.ca>
> wrote:
>
>> Hi Diego,
>>
>> You might find figure 3 or this paper useful:
>> https://jmvalin.ca/papers/aes135_opus_cel...
2017 Apr 11
2
MDCT implementation and his overlapped relationship
Dear all
I'm working on the implementation of the MDCT for the processor
ARM-Cortex-M4 I'm trying to replicate the behavior of the MDCT for several
overlapped values however I realized that current implementation of the
MDCT is very close to the theory only in case in which we have and overlap
exactly equal to N/2 where N is the size of the input vector as is shown in
the examples for
2012 Apr 15
6
CRAN (and crantastic) updates this week
CRAN (and crantastic) updates this week
New packages
------------
* disclapmix (0.1)
Maintainer: Mikkel Meyer Andersen
Author(s): Mikkel Meyer Andersen and Poul Svante Eriksen
License: GPL-2
http://crantastic.org/packages/disclapmix
disclapmix makes inference in a mixture of Discrete Laplace
distributions using the EM algorithm.
* EstSimPDMP (1.1)
Maintainer: Unknown
Author(s):
2017 Oct 10
0
SILK-implementation some questions
Dear all:
I want to formulate couple of questions about SILK codec:
1.
I've seen the documentation to the SILK codec that is part of the OPUS
exactly the paper with title "The opus codec voice coding with opus, and
the "RFC 6716 specification of opus" . Well, I detected that in both is
defined a High-Pass filter as part of SILK; however in the paper you put
the following
2017 Oct 19
0
Global stack on Cortex-M4
Hi all:
I'm successfully run OPUS in cortexM4 arm architectures using a cross
compiler gcc-arm-none-eabi . I recommend to uses the following precompile
flags before to compile you code:
arm-none-eabi-gcc -mcpu=cortex-m4 -mthumb -mfloat-abi=hard
-mfpu=fpv4-sp-dl16 -std=c99 -fasm -DARM_MATH_CM4 -DOPUS_ARM_INLINE_ASM
-DOPUS_ARM_ASM ....
and in your configuration file of OPUS you could use the
2017 Apr 18
2
Optimization points
Dear all,
Currently I'm working in and optimization of opus for an arm-architecture
*"armv7e-m"* I've involved in the general opus documentation as well in the
architecture, however opus Is so big and difficult to discover specific
optimization points, I want to know if you could give me a general view
about of the principal points that I have to consider in order to optimize