2012-05-04 06:45 AM
Hi All!!
Do you think
this
is possible
in the
Controller
speech recognition
or
speech
-driven applications
to prepare
?
2012-05-04 07:12 AM
Do you think
this
is possible
in the
Controller
speech recognition
or
speech
-driven applications
to prepare
?Possible or practical? I doubt it's practical. How large is your application, and how much horse power does it need to operate effectively?
2012-05-04 08:56 AM
You probably can exclude everything below a Cortex M4F, assuming you mean spectral based signal analysis.
It might be possible with some constraints and optimizations, but hardly with the quality of GHz - clocked processors with DP-FPU.2012-05-05 03:08 AM
Thank you for your
answer !
Floating point Unit􀂃 Graphic acceleration: moves like rotations and so on...􀂃 Advanced algorithms: audio (voice recognition, pitch detection) or imageprocessing􀂃 Direct Matlab interface: PC tools generate floating point code, directlyportable on FPU. A fixed point device will require more care and adaptation.This text is
purely
marketing?
DSP and
FPU
units
do not help
?
2012-05-05 04:38 AM
I'm sure it helps, but it is going to depend a lot on what YOUR algorithm requires in terms of speed and resources. Don't expect it to function like Siri or Dragon. Or that a 168 MHz Cortex-M4 is going to be able to grind numbers like a 3 GHz x86 with megabytes or gigabytes of RAM.
I'm sure what marketing is probably talking about is something where someone grunts ON or OFF at the device and it can detect the different intonations, not something that can decipher a stream of speech on the fly.2012-05-05 06:31 AM
From: kovacs.janos:
You're quoting a page there from EBV - so why don't you contact EBV and ask them to explain precisely what they mean by it? That is, after all, what technical Distributors are there for! ''We, as a semiconductor specialist, are being asked to provide in-depth application support, value-added services and logistics solutions to a diverse customer base. EBV Elektronik will embrace these challenges as we take advantage of our strong position within the electronic components industry and our highly skilled and motivated employees .... Our goal is to meet and exceed the needs of our customers and vendors like never before, providing access to a new level of resources in technical expertise and supply chain solutions. Don't expect anything else from us than the best in class service in semiconductor distribution.'' Slobodan Puljarevic President & CEO EBV Elektronik Go on - put them to the test!2012-05-05 08:43 AM
I have to agree with clive and neil.andrew - it depends a lot on the algorithms you intend to use. You might find several packages in source code for PCs, but all are usually based on DP at least.
To get some PC-based algorithms ported to Cortex M4, you have to put heavy efforts in optimization, and you might have to sacrifice something to tune it for your application. On the other side, look at the TDA7590, for instance. That part delivers 120MIPS, with an architecture and instruction set tuned to exactly such applications. While the STM32F4 has theoretically a higher performance and higher numerical resolution (32 Bit SP float, compared to 24 Bit fixed point), it misses the highly optimized DSP engine and heavily tuned libs. With the surplus in raw MIPS, you might keep up with that DSP class. But, as mentioned, most important are working and efficient algorithms.2012-05-07 10:56 PM
Remember the
Erisson
T39m
named
dinosaurus
?
Dew
weak
hardware,
an efficient and
effective
voice control
.
And 8051
Core
sensory
''neural
network
'' voice
control
device?
The
goal is not
a
dragon
-featured
audio
control device
.
I believe that
these
resources
can
do something
on this topic.
Amen to that.
:)
2012-05-07 10:58 PM
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en023596
2012-05-08 12:09 AM
This is :