rockbox/lib/rbcodec/dsp/dsp_proc_database.h
Chiwen Chang 3ae0f32ac3 three new DSPs
perceptual bass enhancement
- a bbe-ish group delay corrction with Biophonic EQ boost.
- precut

auditory fatigue reduction
-reduce signal in frequency that may trigger temporary threshold shift

haas surround
-frequency between f(x1) and f(x2) is always bypassed.
-can apply to side only.

Change-Id: Icb6355ce9b1c99bf2c58c9385c3c411c0ae209d3
2015-01-19 19:34:01 +01:00

60 lines
2.6 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2012 Michael Sevakis
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
/****************************************************************************
* -_-~-_-~-_-~-_-~-_-~-_- Main database of effects _-~-_-~-_-~-_-~-_-~-_-~-
*
* Order is not particularly relevant and has no intended correlation with
* IDs.
*
* Notable exceptions in ordering:
* * Sample input: which is first in line and has special responsibilities
* (not an effect per se).
* * Anything that depends on the native sample rate must go after the
* resampling stage.
* * Some bizarre dependency I didn't think of but you decided to implement.
* * Sample output: Naturally, this takes the final result and converts it
* to the target PCM format (not an effect per se).
*/
DSP_PROC_DB_START
DSP_PROC_DB_ITEM(MISC_HANDLER) /* misc stuff (null stage) */
DSP_PROC_DB_ITEM(PGA) /* pre-gain amp */
#ifdef HAVE_PITCHCONTROL
DSP_PROC_DB_ITEM(TIMESTRETCH) /* time-stretching */
#endif
DSP_PROC_DB_ITEM(RESAMPLE) /* resampler providing output frequency */
DSP_PROC_DB_ITEM(CROSSFEED) /* stereo crossfeed */
DSP_PROC_DB_ITEM(EQUALIZER) /* n-band equalizer */
#ifdef HAVE_SW_TONE_CONTROLS
DSP_PROC_DB_ITEM(TONE_CONTROLS) /* bass and treble */
#endif
DSP_PROC_DB_ITEM(PBE) /* perceptual bass enhancement */
DSP_PROC_DB_ITEM(AFR) /* auditory fatigue reduction */
DSP_PROC_DB_ITEM(SURROUND) /* haas surround */
DSP_PROC_DB_ITEM(CHANNEL_MODE) /* channel modes */
DSP_PROC_DB_ITEM(COMPRESSOR) /* dynamic-range compressor */
DSP_PROC_DB_STOP
/* This file is included multiple times with different macro definitions so
clean up the current ones */
#undef DSP_PROC_DB_START
#undef DSP_PROC_DB_ITEM
#undef DSP_PROC_DB_STOP