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This article describes a three stroke approach to improve sound from camcorders. The first step is to reduce the noise. In the following steps the dialog loudness is set to a standard level and the dynamic range is reduced. The last two steps are an integral part of AC-3 (A/52, Dolby Digital) but can also be applied to other streams such as Advanced Audio Codec (AAC) as shown in the last section. «read more» 
Wireshark is a open-source protocol analyzer that can visualize the frames passing through the router. This analyzer is available on many platforms, but can not run directly on the router. «read more» 
This article shows how you can use a $75 consumer class router to support two different networks. Besides the usual primary network, it will create a secondary network supporting both wireless and wired connections. The secondary network could be used to provide internet access to customers or visitors. «read more» 
This article focuses on the OpenVPN implementation as it is included in the DD-Wrt router firmware. Besides security, one of its prominent features is that its traffic can traverse network address translators (NAT) and firewalls. «read more» 
Get DD-WRT and U-Verse to play along. Prevent double NAT. Prevent WAN interface bouncing every 10 minutes. «read more» 
This program introduces complex number operations to the HP-41CV and HP-41CX pocket calculators. «read more» 
This program calculates the roots of a polynomial sigh real number up to the 5th degree (quintic). A root of polynomial P(z) is a number zi such that P(zi)=0. A polynomial of degree n has n roots. Only real number coefficients are supported, because a polynomial with complex coefficients can be rewritten as two independent polynomials with real number coefficients. «read more»
This program adds hyperbolic operations to the HP-41. «read more»
This program determines the eigenvalues of a real number matrix. «read more»
Te discrete Fourier transform transforms a time domain function to frequency domain. «read more» |
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