similar to: speex_denoise on non-microphone noise (static ?)

Understand that it's a *guess*. If this fixes or at least betters the situation, you're going to need to find a legit way to insulate these cards, or to switch cards. If it's for customers, I should hope you wouldn't be using enamelled aluminum foil. :D -----Original Message----- From: Tongbiao Li [mailto:tli@viack.com] Sent: Thursday, September 18, 2003 11:20 AM To:

Hi, I'm not sure how speex_denoise() works, but my solution to this problem is fairly straightforward and works well in practice (in a simple VoIP program.) Note that I am also an amateur and am making up some terminology here... but I've tested my approach on several noisy environments with low-quality mics and it does work well. Problem: There's usually annoying noise present

Take what I say with a grain of salt: I'm an amateur and haven't actually touched Speex in any way, yet. I'm just sort of passing on personal belief from personal experience. Also, check and make sure that the microphone line is insulated. There are a number of problems with sound cards picking up interference from the host machine. The wires that run between ICs on a card

Thanks for the speedy response and detailed, enlightening explanation. Now I understand where the problem is, and will try out your suggestions just to further confirm my conjecture. When I am done, I have to take the foil out, though. This is a product for our customers to use, and although we've got budget for mulffing every sound card we developers use, most likely the company

I'm not sure you'd have much success in trying to make a generic profile to fit the "typical noisy PC" since PC configurations vary so much. Consider an integrated AC97 codec vs. the mic input on an SB Live!/Audigy Live!Drive, or whether or not the input from the CD-ROM audio is muted, or what noisy devices might be situated near the mic. It's nice to be able to get

That's might be speex_denoise() is trying to do already, based on the fact that if noise is present in speech signal, the former gets suppressed to a certain extend. Also, I noticed after suppression, the short, noisy attack - speex_denoise() have to be doing some kind of profiling. I've looked at a few offline denoise() solutions. They all involve profile building. A real-time

> Then I pulled the microphone out. Our system still records noise. To > isolate the problem, I wrote a small app just to open the device and > record raw samples, calls speex_denoise() and outputs both sample > sets. > The noise is still there, with level fluctuating with gain level, > unless > "All mute" is chosen. > In the case when NO microphone is

Hi, There seems to be some confusion as to how speex_denoise (now called speex_preprocess) works. Unlike what some here assume, the noise estimation is not done offline or while prompting the user. The system automatically adapts the noise estimate when it detects that the user is not talking. This also means that it is able to adapt to changing noise environments - as long as the noise is not

This works really well for white noise reduction. However what I've noticed was the amplitudes of normal speech samples also get reduced. Is this something by design, or is there a way to automatically recover the original speech sample volumes ? <p>Thanks. <p>Tongbiao <p>-----Original Message----- From: Jean-Marc Valin [mailto:jean-marc.valin@hermes.usherb.ca] Sent:

Hello, With high microphone gain, I seem to have problem making the silence detection work. The speech detection works well for the rare dish sample, which has very low noise amplitudes in silence regions. However, if the microphone gain is set to really high, noise samples are taken as speech, as indicated by the non-zero return value from speex_encode() calls. I had VAD turned on.

Le dim 31/08/2003 à 20:12, Daniel Vogel a écrit : > > This works really well for white noise reduction. However > > what I've noticed was the amplitudes of normal speech samples > > also get reduced. > > Noticed this as well recently. This is probably due to the AGC (Adaptive Gain Control) that's integrated with the denoiser. I'll try adding an option to

Hi, I have following problem. In my Computer is an on board HDA Intel Sound Chip. This device has 5.1 out and an input connection for an microphone. My TFT Monitor has also a build in microphone with web Cam connected via USB. The big advantage is, I don't need an separate Microphone or Head Set. Both works fine under Suse Linux (Skype, or other applications that uses that microphone). But

I'm having some problems configuring my microphone to work in Wine. It is a standard analog (not usb) microphone. I'm running Ubuntu 9.04, Wine 1.1.38, and using the ALSA drivers in winecfg. Although Wine detects my microphone, depending on how I set-up the mixers in ALSAmixer, Windows programs in Wine only pick up static or nothing at all. For example, Rosetta Stone 3.4.5, although able

On 15 March 2008 Johnny Hughes johnny at centos.org wrote: Sat Mar 15 15:25:13 UTC 2008 >In the Gnome mixer, make sure that the "Microphone" and the "capture" >microphone icons are NOT MUTED (a red is is muted) .. also change >devices to the OSS Mixer and in the capture tab, check the microphone >icon for microphone is also not muted there. Johnny: Thank you

On 15 March 2008, Johnny Hughes johnny at centos.org wrote: <snip> >In the Gnome mixer, make sure that the "Microphone" and the "capture" >microphone icons are NOT MUTED (a red is is muted) .. also change >devices to the OSS Mixer and in the capture tab, check the microphone >icon for microphone is also not muted there. Johnny: I think I have that OK. In

I've been trying to get Skype to run under wine, and although the speaker works great, the microphone doesn't appear to work. Microphone works great from linux. Anyone have thoughts on how to get wine to recognize my microphone? Running SuSE 9.0, wine-20040813-SuSELinux90.i586.rpm. PatC -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello, I have CentOS 7.1 installed on my Lenovo T420 Notebook. Now I will start to have some online meetings for a software project. In Bios the I/O-settings for camera and microphone are enabled. Camera is working (tested with cheese). In the audio settings of Gnome perferences I see an internal microphone which doesn't produce any input. The microphone is also not disabled by the key on

My apologies beforehand if this is a common issue, but I have next to no experience with Ubuntu. I have a regular microphone hooked into my MoBo onboard sound and it works fine in Ubuntu (tested using a sound recorder). When I launch Steam, and any game within, I cannot get my microphone to work. I haven't tested this in other programs in WINE since I don't have anything else installed

The original post in this thread was never answered, and I too was requesting help on the same subject -since as of yet, this issue remains unresolved. So, to recap, Rosetta Stone is installed and running, but can't detect my microphone (analogue, or the USB headset that comes with the software). Since Rosetta Stone is reported as fully functional under WINE, I am asking for advice, in terms

On 07/14/2015 06:02 AM, Tim wrote: > In the audio settings of Gnome perferences I see an internal microphone > which doesn't produce any input. The microphone is also not disabled by > the key on the keyboard. One thing to try is adjusting the gain on the microphone *after* you've started your conferencing application. I have to do this with my webcam mic. --