Quality oriented free audio tools
| An accurate equalizer for winamp 2. With 16383th order FIR filter, this plugin gives a lot more accurate equalization than the default winamp equalizer. With celeron 800MHz, CPU power usage is less than 10%. Download | |
| This program converts sampling rate of PCM wav file. Also, this program has a function to apply dither to its output and extend perceived dynamic range. Sampling rates of 44.1kHz and 48kHz are populary used, but ratio of these two frequency is 147:160, and these are not small numbers. And thus, sampling rate conversion without degradation of sound quality requires filters with very large order, and it's difficult to achieve both quality and speed. This program achieved relatively fast and high quality conversion using two different kinds of filters combined in a smart way. Download | |
| This is a program which analyzes an MP3 file and guesses which encoder was used. All encoders have some characteristics in encoded MP3 file. For example, Xing encoder never uses short block. This program analyzes which features are used in the given MP3 file and guesses which encoder is used to encode the MP3 file. The guess is not always correct.Download | |
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| Here is the program used to make noise shaping filter of ssrc. Download | |
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| Convolution is an important operation frequently used in signal processing. This program performs inverse operation of convolution, which is to obtain the impulse response from input and output of a linear system. This program aims to obtain a result as accurate as possible, sacrificing computation time.Download | |
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| MP3 decoder of old winamp had some bugs and its output was not perfectly compliant to MP3 standard. This plugin was once used to decode MP3 files correctly with old buggy winamp. This bug is fixed long time ago, and there is no reason to use this plugin any more. Download | |
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| nspsytune2 is under construction. Still...maybe. | |
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| If you have a pair of high quality headphones, you can possibly improve sound quality of your speakers. Here | |
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