foo_dsp_effect, A effect array for FB2K Options

[mudlord]

Current builds and source code available here or here.

Includes the following effects:

• Pitch Shift
• Tempo Shift
• Playback Rate Shift
• Dynamics Compressor
• Echo
• Phaser
• Reverb
• WahWah
• IIR Filter, which includes the following effects:
  • Bandpass Filter (CSG & ZPG)
  • Bass Boost (boosts bass frequencies which are specifically selected.)
  • High Shelf Filter
  • Low Shelf Filter
  • Notch Filter
  • Parametric EQ (single band)
  • Resonant Highpass Filter
  • Resonant Lowpass Filter
  • Allpass Filter
  • RIAA Phono De-emphasis Filter
  • CD De-emphasis Filter

Change log:

• 2011-08-11- Version 0.9.2:
  
  • Fixed conversion crashes in SoundTouch based DSPs.
  • Increased frequency range of IIR DSP.
• 2011-06-21- Version 0.9.1:
  
  • Fixed crashes in rate/tempo DSPs.
• 2011-06-20- Version 0.9:
  
  • Added a rate modification DSP. Added finer grained control to the Pitch DSP.
• 2011-04-30- Version 0.8:
  
  • Added tempo and pitch modification DSPs.
• 2011-02-10 - Version 0.7.1:
  • Fixed the realtime de-emphasis post processor to be on par with SoX. Made clear distinctions between the phono and CD de-emphasis filters in the IIR filter dialog. Many thanks to Sandrine for his testing.
• 2011-02-10 - Version 0.7:
  • Added a realtime CD de-emphasis decode post processor. The tag "PRE_EMPHASIS" must be used on content which is supported by FB2Ks decode processor services, for this to work. Pre-emphasis can be signified in your media with the values "1" or "0".
• 2011-01-28 - Version 0.6.2:
  • Added a RIAA de-emphasis filter.
  • Recompiled with MSVC10.
• 2011-01-10 - Version 0.6.1:
  • Fixed minor bug that crept into last release.
• 2011-01-10 - Version 0.6:
  • Fixed various user interface bugs that crept into the last release.
  • Merged the Bass Boost DSP into the IIR filter class and user interface, where it belongs.
• 2011-01-08 - Version 0.5:
  • Added Garf's dynamic compressor, ported from foobar2000 0.8.3.
  • Added allpass filters.
  • Added a new bandpass filter mode.
  • Added new IIR filter DSP to house the various IIR-related filter effects.
• 2010-12-14 - Version 0.4:
  • Added notch and high/low shelf filters
  • Increased range of parametric EQ
• 2010-12-13 - Version 0.3:
  • Added bandpass/resonant highpass/lowpass filters
  • Added a parametric EQ
• 2010-11-03 - Version 0.2:
  • Increased parameter ranges for Phaser and WahWah effects.
  • Truncated display values for Phaser and WahWah effects to 1 decimal place.
• Version 0.1:
  • Initial release.

This post has been edited by mudlord: Aug 11 2011, 15:05

[lvqcl]

Hello mudlord, I have a couple of questions about IIR filter DSP.

1. Min value Q is 1, and default is 10; but usually default value of Q is 0.5 or 0.707. So even minimal possible Q setting is often too high. What do you think about correcting these limits?

2. Formulas for coefficients for BBOOST/LSH/HSH/RIAA_CD - where are they from?

This post has been edited by lvqcl: Feb 10 2011, 17:02