Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Modelling Psychoacoustic bass boost
Modelling Psychoacoustic bass boost
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 16th September 2018, 03:57 PM   #1
arjunm009 is offline arjunm009
diyAudio Member
 
Join Date: Aug 2014
Default Modelling Psychoacoustic bass boost

Hi
I am motivated to try out psychoacoustic bass boost to my DIY speaker.

I have a Rpi running as a dedicated music server. It also has a system wide DSP.

Maxxaudio has a commercial plugin but I was looking for something off the shelf and hackable.

I decided to try this on my own. As a start I was able to build samples and generate FFT data for incoming streams, using Ruby Wavefile and FFTW3 gem., which looked something like this

Code:
[31751.005041503904, 31751.79495849609][1.7941953779932043, 1.8058046050913088][1.7935098947547161, 1.806490037581204][1.7899886602059394, 1.810011187548808][1.7869433998054052, 1.8130563295363964][1.7857040276429634, 1.8142955494533006][1.7961648814571722, 1.8038345095617627][1.8001083309621893, 1.7998908401469693][1.8030444645036403, 1.796954452863544][1.798728981594639, 1.8012696481981179][1.7969260488145204, 1.8030722595715445,
This is the general block diagram given for psychoacoustic bass boost


Click the image to open in full size.

In code, what is the harmonic generator? More specifically, how can we model the Full wave integrator circuit with the generated FFT arrays that I got after sampling?
  Reply With Quote
Old 20th September 2018, 02:38 AM   #2
Neil Davis is offline Neil Davis  United States
diyAudio Member
 
Join Date: Dec 2004
Location: Reston, Virginia
Modelling Psychoacoustic bass boost
According to this article, there are several ways to implement the harmonic generator, and they describe two methods in detail: http://cseweb.ucsd.edu/~marora/files/papers/13868.pdf

If you have an ADAU1701-based board available, you can load the Super Bass algorithm, which allows experimenting with three variables (crossover freq, intensity and gain). That might help you decide how you want to implement the design in the Rpi.

edit: you might want to ask this question in Digital Line instead of Digital Source

Last edited by Neil Davis; 20th September 2018 at 02:44 AM.
  Reply With Quote
Old 20th September 2018, 03:01 AM   #3
kevinkr is offline kevinkr  United States
diyAudio Moderator
 
kevinkr's Avatar
 
Join Date: Sep 2004
Location: Boston, Massachusetts
Modelling Psychoacoustic bass boost
Report the thread with a request to move it and moderation will relocate it to the suggested forum.
__________________
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." - Thomas Paine
  Reply With Quote

Reply


Modelling Psychoacoustic bass boostHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
RC4200 IC replacement for psychoacoustic bass enhancer DontHertzMe Analog Line Level 6 10th June 2018 09:39 AM
Discussion - Bass - Psychoacoustic - Happiness LORDSANSUI Subwoofers 32 1st October 2017 10:50 PM
Psychoacoustic bass enhancement Saturnus miniDSP 26 5th July 2017 08:58 PM
bass boost odysseybmx414 Chip Amps 3 26th August 2005 09:05 AM


New To Site? Need Help?

All times are GMT. The time now is 04:42 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki