Free masking software for windows

The AMS audio masking system is a free tool that uses a Windows PC to create pink noise tones to assist to mask confidential sensitive background conversations. Typically AMS is used in waiting rooms to reduce the ability to overhear confidential conversions but it can also be used as a security device to prevent the interception of sensitive conversations.
A sound will always mask a background sound. However the problem with most sounds is that the masking only occurs at the sounds frequencies which, with for example music, is rarely all frequencies and never the same as voice. The listen hears the background conversation through the gaps in bands of the music.
Pink noise is a sound that sounds a bit like the sea and has all frequencies combined together. AMS creates Modified Pink Noise, pink noise with a spectrum most similar to voice. This is proven to be the most effective sound to prevent hearing background conversations. So just like a background conversation would be less likely to be overheard at the sea, a background conversion is less likely to be overheard when AMS is playing. The added advantage of pink noise, like the sound of the sea, is that while you notice the sound when it first turns on after a short while the brain turns it off so you stop noticing it. The masking effect however continues.
You only need a fairly soft sound to dramatically reduce the intelligibility of background conversations. In more severe cases you can combine AMS with dynamic-range compressed music (you can use the BMS Business Music System).
Install AMS on any Windows PC with a sound card. Move the computer speakers to between the conversation and potential listeners and adjust the volume (very soft noise can be effective). AMS will automatically start when you turn on your computer and runs in the background 24/7. You can continue to use your PC as normal while AMS sits on the task bar tray.

The AudioNoise application can generate different types of noise: white, pink, and so-called physiological noise.
With AudioNoise you can take advantage of the so-called masking effect: by presenting a low level broadband noise to the ear it is possible to effectively block other (possibly disturbing) sounds.
The point is that a broaband noise is much less disturbing than, say, a high pitched tone, because the brain doesnt interpret it as important information. In fact, after listening to broadband noise for 10-15 minutes you wont even notice it any more unless its fairly loud.
Main features:
- Cube farm background - focus on your work again
- Tinnitus masking (Noiser)
- Baby soothing
- Transfer function measurements (e.g. of your desktop speakers)
- Training background for cochlear-implant patients

Generate 1 to 50,000 unique fixed/random length passwords with masking Password Construction Kit allows you to generate large lists of secure password, which can be exported to various delimited file formats (csv, xml, html etc.). You can customize the characters to be included and build templates to be used for all passwords in the list.
Features:
- Generate 1 to 50,000 unique passwords
- Specify fixed or random length passwords
- Selectable character ranges consisting of Uppercase, Lowercase, Numbers and Special characters
- Dictionary words of 2 to 9 letters in length
- Mask editing to generate formatted passwords
- Save password lists as text, delimited, HTML or XML
- WEP key generator (40, 64, 104, 128, 152, 232 and 256 bit keys)
- Random byte generator creates random hexidecimal, decimal, octal or binary strings ranging from 256 to 16,384 bytes in length.
NOTE: you must have Microsoft .NET Framework v1.1 installed on your computer to run Password Construction Kit.