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RIAA EQ comparation between Audacity EQ (FIR) w/ RIAA preset and 2nd o
Juha
post Aug 26 2009, 10:39
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Audacity 1.2.6

Normalization and Amplification done using Audacity features.

24-bit/48kHz (wma) samples:

1 - no RIAA - Attached File  1.wma ( 1.21MB ) Number of downloads: 563

2 - Audacity EQ w/ RIAA preset - Attached File  2.wma ( 1.1MB ) Number of downloads: 396

3 - Audacity EQ w/ RIAA preset + Normalization (< -3.0 dB) - Attached File  3.wma ( 1.16MB ) Number of downloads: 339

4 - Audacity EQ w/ RIAA preset + Amplifying (< -0.0 dB) - Attached File  4.wma ( 1.16MB ) Number of downloads: 322

5 - IIR filter (< -1.0 dB) - Attached File  5.wma ( 1.07MB ) Number of downloads: 307

6 - IIR filter (< -3.0 dB) - Attached File  6.wma ( 1.07MB ) Number of downloads: 432


Examples/instructions to make IIR type RIAA EQ implementation can be found @ http://jiiteepee.fortunecity.com/riaafilter/index.html


Juha
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Paul Sanders
post Dec 28 2012, 16:29
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Meanwhile, 3 years later, in a galaxy far, far away:

The Audacity samples sound wrong to me - too much treble and not enough bass. I have done some experiments of my own which support this. Maybe this is fixed in Audacity 2.x

How did you calculate your IIR filter parameters please?


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I am an independent software developer (VinylStudio) based in UK
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