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Hi, I'm currently testing SoftEcho, an echo cancellation software for Asterisk from Octasic. I noticed an important increase of the quality of my coms, but I still have a few echo problems. There is an ERL parameter which corresponds to an initial ERL value probably to optimize the echo training or something in that kind. Is there a way to monitor, using one of the zttools, the instant

We're looking at using 4 or 8 port T1 cards with echo cancellation and are evaluating brands to go with. We know that Sangoma has excellent solutions especially when it comes to echo. But we still have to hear about actual performance of a Digium card using the same Octasic DSP echo canceller. Would appreciate hearing something on this. --------------------------------- Sponsored Link

Hi all, It's the first LLVM backend we do for our asynchronous DSP. So, I apologize if this is a trivial question! The target-independent DAG combiner performs the following transformation: sub n, c -> add n, -c For our target, negative constants are more costly to encode. What is the best place to revert to a sub instruction? Kind regards, -- Martin

On Thu, May 16, 2013 at 02:03:14AM +0000, Martin Filteau wrote: > Hi all, > > It's the first LLVM backend we do for our asynchronous DSP. So, I apologize if this is a trivial question! > > The target-independent DAG combiner performs the following transformation: > > sub n, c -> add n, -c > It looks to me like this transformation would happen

New never used bought by mistake ( 5V pci slot ) and stored... pls make offer, thanks and regards, Jean-louis Curty The TE207P is a bundling of our leading TE205P product and our new VPMOCT064 Octasic DSP-based echo cancellation module. The TE207P is Digium's and the industry's first two-port digital card featuring hardware-based echo cancellation. The new module enables users to

Hi, I just read a pressrelease from VON that Digium will soon be releaseing a couple of new cards. What got me interested was: "The TE420P and TE415P support 128ms of G.168 (2002)-compliant echo cancellation across their entire 128 channels." Does anyone know when thease will be released and what they will cost when released? Thanks!

A better way to handle this is to a td pattern to match "add n, -c" to a subtraction. I believe several targets do something similar to this. Evan On May 16, 2013, at 7:12 AM, Tom Stellard <tom at stellard.net> wrote: > On Thu, May 16, 2013 at 02:03:14AM +0000, Martin Filteau wrote: >> Hi all, >> >> It's the first LLVM backend we do for our asynchronous

Hi, I'm trying to get a TE212 working on a Dell PowerEdge 1850 running Debian etch using the latest release of libpri (1.4.0), zaptel (1.4.2.1) and asterisk (1.4.4). The initilization of the Octasic echo canceller seems to fail when the wct4xxp module is loaded. [...] VPM450: echo cancellation for 64 channels Failed to open chip, code 00103017! VPM450: Failed to initialize [...] By looking

Hello LLVM, My target has a complex relaxation hierarchy. Perhaps a modest TableGen extension would help consolidate most of the work involved in choosing a relaxed opcode. I also notice the x86 relaxation code with a comment wondering if TableGen could improve life. Does the following outline sound interesting? 1) Add a new field of type 'Instruction' to the Instruction class called

Ok... I am reluctant to ask this question as I believe that it may be like asking what someones favorite linux distribution is... but I need to make an informed decision. We are getting ready to upgrade from a TE210P to a quad T1 card with echo cancellation. I am trying to decide between the Sangoma card and the Digium card. I need this to have great quality and I need it to work well. I would

I think it would make sense for (1) and (2). I am not sure if (3) is feasible in instcombine. (I am not too familiar with LoopInfo) For the Octasic's Opus platform, I modified shouldMergeGEPs in our fork to: if (GEP.hasAllZeroIndices() && !Src.hasAllZeroIndices() && !Src.hasOneUse()) return false; return Src.hasAllConstantIndices(); // was return false;

Hi: I am working on a new system with a TDM-400P card with three FXO modules and one FXS module. The system has been in place for a week. Users are complaining of echo problems. I have noticed this echo myself. It varies in severity. It is sometimes bad enough to make it difficult to converse, but the users find it generally unacceptable. They miss their old phones, which just worked. As you can

On my (out-of-tree) target I have 16 128-bit registers. Unaligned load/store are illegal. (must 16-bytes aligned) 8 of those registers are defined as callee-saved and 8 caller-saved. The default stack size is 4 bytes. The target implements dynamic stack realign to make sure the stack will always be aligned correctly when necessary. Yet I am still getting unaligned load/store when running this

Hi, To solve echo problems, I'm considering 2 alternatives. 1> Sangoma A104d - I can't find support for asterisk 1.2.1 2> Desktop echo canceller - http://www.oriontelecom.com/echo_canceller/desktop/e1_ec_desktop.html - I want to know where to buy and price. Any suggestion is appreciated. Thanks. Jason. p.s. : asterisk cli command "reload" can change rx_gain and

Hi everyone, I've just released Speex 1.2rc1. This adds support for acoustic echo cancellation with multiple microphones and multiple loudspeakers. It also adds an API to decorrelate loudspeaker signals to improve multi-channel performance. In the bugfix department, there are fixes for a few bugs in the echo canceller, jitter buffer and preprocessor. At this point, the API for 1.2 should be

...ities Asterisk Users, It's time once again to have another meeting. The Main topic for the August 11th meeting is: Echo Cancellation. Eric Osterberg will be hosting the meeting at Sound Choice Communications and answer all you questions about resolving or removing echo as well as a renew of Octasics SoftEcho product for asterisk. You can purchase license keys at the meeting for 10 dollars a channel for the SoftEcho product. We'll also show you how to improve your echo problems for free. Be sure to get here early as the chairs go fast. The August 11th meeting will be starting at 11:30a...

Just noticed this today: Digium TE220B Dual Span T1/E1 PCI Express Card with Octasic DSP-based Echo Cancellation Module<http://www.voipsupply.com/product_info.php?products_id=3352> It's about time Digium got on the ball and made PCI-e cards. What are people's experiences with this card? Anyone know if there are plans for a PCI-e analog card for FXO use? -------------- next part

Hi all, When the Dahdi driver detects DTMF, it seems it's not muting the first 5-15 ms and sometimes the last 2-10 ms of the DTMF tone. This shows up in recorded voicemail greetings -- you hear a very short DTMF '#', or sometimes two blips, at the end of the recording. I have a Mitel SX-200 connected to Asterisk 1.6.0.1 by a couple of Digium cards: a TE420 w/Octasic and pri_net

The Asterisk Development Team is pleased to announce the release of DAHDI-Linux and DAHDI-Tools version 2.5.0 DAHDI-Linux 2.5.0, DAHDI-Tools 2.5.0 and DAHDI-Linux-Complete 2.5.0+2.5.0 are available for immediate download at: http://downloads.asterisk.org/pub/telephony/dahdi-linux http://downloads.asterisk.org/pub/telephony/dahdi-tools

The Asterisk Development Team is pleased to announce the release of DAHDI-Linux and DAHDI-Tools version 2.5.0 DAHDI-Linux 2.5.0, DAHDI-Tools 2.5.0 and DAHDI-Linux-Complete 2.5.0+2.5.0 are available for immediate download at: http://downloads.asterisk.org/pub/telephony/dahdi-linux http://downloads.asterisk.org/pub/telephony/dahdi-tools