Displaying 20 results from an estimated 120 matches similar to: "PWM vs. DAC output"
2010 Mar 03
2
Speex on EFM32
In fact, on my shelf is running speex using Raisonance Primer2 DK and IAR
STM32-SK DK.
But I want to save the power consumption of the device runnig speex, and
EFM32 seems to be a very good candidate.
Also, do yo think that the STM32F103 (Cortex M3 90 MIPS) could be used to
run Speex at 4 Kbps in real time?
Regards,
Nicolas
2010/3/3 Jean-Marc Valin <jean-marc.valin at usherbrooke.ca>
>
2010 Mar 02
2
Speex on EFM32
Hi,
Do you think that Speex could run in real time on the new EFM32 ultra-low
consumption Cortex-M3 MCU (180 ?A/MHz) (NB 8KHz - Quality 4 - complexity 1 /
same as STM32F103 Speex lib.) ?
Its max speed is 32 MHz (about 40 MIPs).
Thanks.
Regards,
Nicolas
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2010 Mar 03
1
Speex on EFM32
Thanks !
On this forum is also shown this information :
http://lists.xiph.org/pipermail/speex-dev/2009-January/007050.html
According to vk's results, it could be possible to run Speex at 4/6 & 8 kbps
on a Cortex M-3 at 36 MHz ... so not excluding the EFM32 ...
Nico
2010/3/3 Pietro Maggi <studiomaggi at gmail.com>
> On ST forums there is someone that states it has done an
2011 May 11
1
code space / speed question
Hi,
I'm looking to see what the cheapest way to make a codec with speex is. Has anyone tried using a low-powered microcontroller to decode the audio? How much RAM and "MIPS" are required?
Thanks,
David.
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2013 May 21
1
Library without malloc
Dear all,
I am trying to use the Speex library pre-processor, I only need the VAD and Echo Canceller.
I am using a STM32F103 processor, but I am using a tiny OS and it doesn't allow to use malloc.
Is there a version of the library that will work without the need of using malloc?
Obviously I will use all the time the same parameters, like 8kHz sampling rate, 160 frame...
I will appreciate
2010 Mar 03
0
Speex on EFM32
On ST forums there is someone that states it has done an optimized
port of the library that run Speex at 4Kbps (ST port is only 8Kbps).
Take a look here (hoping that the link works):
2011 Oct 31
1
Can CELT / libopus on a ARM cortex M3 or M4 (fast enough ?)
Hello everyone,
For a private project I would like to make a new Internet Intercom
device (for my kids and me).
At the moment I use a separate DSP with Ogg/Vorbis (VS1053) but I like
a challenge ;-)
Is a eg. ST32F10x (cortex m3) or a new ST32F40x (cortex m4) powerful
enough to do encoding and decoding ?
Any existing projects to learn from?
Thanks for your time,
Edwin van den Oetelaar
2013 May 22
0
Library without malloc
Yanick & Jean-Marc,
First of all thank you very much for taking your time to try to help me.
Hi Yanick,
This is what I am trying to do, but for example the function SpeexPreprocessState *speex_preprocess_state_init has lots of pointers that are initialize with static inline void *speex_alloc (int size). So I am trying to convert all this pointers into arrays but it is getting messy trying
2004 Sep 10
1
[Flac-users] BIG Problem!!! Help please!
Yeow! I have many files that have become unplayable. They are almost (but not always) the files of
an entire CD. The error I get is FLAC_STREAM_DECODER_ERROR_LOST_SYNC. They played until recently
using WinAmp and PhatNoise. They will not decode, returning a 0 error. I recently re-installed
Windoze (XP Pro) if this might be a cause, but many of the files I had before the reinstall still
do play.
2013 May 22
0
Library without malloc
I need to set the content to 0 because actually is not using malloc(), it uses calloc() that does set the memory to 0.
Best Regards
---------------------------------------------
Helios Cuevas L?pez
Embedded Software Engineer
Castle Care-tech Ltd.
First Floor, 6 Bracknell Beeches,
Old Bracknell Lane West,
Bracknell, Berkshire, RG12 7BW
Office - 01344 469470
Direct Dial - 01344 469485
FAX - 01344
2019 Aug 20
0
Re: Starting VM fails with: "Setting different DAC user or group on /path... which is already in use" after upgrading to libvirt 5.6.0-1
On 8/19/19 9:53 PM, Nir Soffer wrote:
> Hi,
>
> I upgraded to a Fedora 29 host using virt-preview repo to
> libvirt-daemon-5.6.0-1.fc29.x86_64
> The host was using plain Fedora 29 without virt-preview before that.
>
> After the upgrade, starting some vms that were running fine fail now with
> this error:
>
> Error starting domain: internal error: child reported
2013 Jul 30
0
[PATCH] drm/nv50-/disp: use the number of dac, sor, pior rather than hardcoded values
The values are already stored on chipset specific basis in the ctor.
Make the most of them and simplify the code further by using a temporary
variable to avoid code duplication.
Signed-off-by: Emil Velikov <emil.l.velikov at gmail.com>
---
Found this patch laying around in a local branch. While the it does not
reduce the number of lines, I believe that it makes the code is alot more
2007 Jul 01
2
pwm fancontrol kernel module??
Hi,
I have just setup CentOS4 on a system and want to get "fancontrol"
working.. I am able to get lm_sensors configured but when I run
pwmconfig I am told there are no modules loaded..
What module needs to be loaded for pwmconfig and fancontrol to work?
(Board does support PWM in the fans because fancontrol worked on this pc
with Ubuntu)
TIA
2014 May 12
0
[PATCH] drm/nvd7/therm: handle another kind of PWM fans
Signed-off-by: Martin Peres <martin.peres at free.fr>
Tested-by: SaveTheRobots <john.rowley08 at gmail.com>
---
drivers/gpu/drm/nouveau/core/subdev/therm/nvd0.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/therm/nvd0.c
index 43fec17..bbf117b 100644
---
2015 Sep 19
1
PWM-based voltage management input clock
On 18/09/15 23:30, Andy Ritger wrote:
> Thanks, Martin. I'll try to follow up on this next week and get you an answer. What GPUs have you observed this on?
>
Thanks Andy,
As far as I can tell, it is the case for all GPUs using the PWM-based
voltage management. To be more specific, we have seen this behaviour on
a GK106 (mobile), a GM117 and a GM204.
2018 Apr 22
0
[PATCH] drm/nouveau: fix temp/pwm visibility, skip hwmon when no sensors exist
A NV34 GPU was seeing temp and pwm entries in hwmon, which would error
out when read. These should not have been visible, but also the whole
hwmon object should just not have been registered in the first place.
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
drivers/gpu/drm/nouveau/nouveau_hwmon.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git
2015 Sep 18
2
PWM-based voltage management input clock
Hello,
We recently reverse engineered PWM-based voltage management but found an
odity in the input clock frequency for the PWM controller. It seems like
RM is assuming an input clock of 27.648 MHz instead of the actual 27MHz
crystal found on the board.
I thus have the following questions:
- Is it a fixed value hardcoded in RM? (Current way it is done in Nouveau)
- Should we use
2004 Feb 25
2
PWM Help
I saw a Help e-mail related to MLE. Does R have a probability weighted method (PWM) estimator function? I can't seem to find anything on PWM, unless my eyes are playing trick on me.
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2014 Jul 04
2
[Bug 80900] New: [NVCF] PWM fan speed too high under kernel 3.15
https://bugs.freedesktop.org/show_bug.cgi?id=80900
Priority: medium
Bug ID: 80900
Assignee: nouveau at lists.freedesktop.org
Summary: [NVCF] PWM fan speed too high under kernel 3.15
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: gianni at rootcube.net
Hardware: x86-64 (AMD64)
2014 Sep 07
5
[Bug 83587] New: 3.14.18: FAN control: none / external -- 3.16.2: FAN control: PWM
https://bugs.freedesktop.org/show_bug.cgi?id=83587
Priority: medium
Bug ID: 83587
Assignee: nouveau at lists.freedesktop.org
Summary: 3.14.18: FAN control: none / external -- 3.16.2: FAN
control: PWM
QA Contact: xorg-team at lists.x.org
Severity: normal
Classification: Unclassified
OS: Linux (All)