Audacity Forum

I'm guessing that a strong signal at 19 kHz whilst inaudable could still trip the Audacity meters making them effectively over-read, right? The 19KHz signal peak is @ -42 dB. If you were using a gate with a threshold of -50dB the -42 dB 19KHz signal could prevent the gate from being activated even ...

BTW if you increase the "size" (currently 512) on the frequency analysis, the spikes will get narrower and you'll get a more accurate value for the frequency of each spike to put into the notch filter. BTW2 try “log” instead of “linear” axis on the frequency analysis and you'll be better a...

For spikes like that you'll be wantin a "notch filter"...

[/url] http://wiki.audacityteam.org/index.php? ... tch_Filter

You can get a copy David Sky's Notch filter plug-in here ... http://forum.audacityteam.org/viewtopic ... 309#p48309

it would promt me saying '' error while opening sound device.please check the input device settings and project sample rate'' i totally got no idea what does this mean. I've had that error message too ... check input device settings error message.png You need to enable the USB device (in Windows re...

He chose to dl cyberlink power dvd and it all worked. Looks like that program is only free for 30 days ... http://www.cyberlink.com/downloads/trials/powerdvd (and a bloated 123Mb) MPC-HD is free forever : no limited time period, (and less than 20Mb with all the codecs). He has the other links you a...

jerdonaldson wrote: I'll probably be back with more questions.

Not if you damage your computer, (no computer, no internet).

If I was doing what you are doing I'd use one of these to protect the computer ... http://en.wikipedia.org/wiki/Opto-isolator

He says that a commercial dvd will not play either. So either a codec is missing/bad or the dvd uses a format that wmp cannot handle. Wikipedia table indicates wmp is limited pretty much to the windoze formats. After I downloaded the K-lite codec pack WMP and Windows movie maker could then read DVD...

The signal is right off a 555 timer and there is a series resistor and resistor to ground making a voltage divider. IIRC a 555 can be a source of ~100mA which is 100x greater current than you should apply to the mic input. You need to prevent too much current or too high a voltage being applied to ...

Q.what I'm doing wrong. A. Potentially feeding signals into your microphone socket which could damage the soundcard. Depending on the source of your 0.5V square wave you could deliver excessive current to the sound card : potentially frying components. BTW a DC blocking capacitor is probably respons...

He is trying to play the video on a PC dvd drive. I think he said the video plays okay on a dvd player. Out of the box my WMP would not play DVDs, no sound or vision, and I had to download a codec, that was a couple of years ago I can't remember what it was called. This is the codec pack I'm using ...