From: drowe67 Date: Fri, 21 Aug 2009 10:22:09 +0000 (+0000) Subject: initial import X-Git-Url: http://git.whiteaudio.com/gitweb/?a=commitdiff_plain;h=1e0fbd5c01434aaee4027127254be88b13d7dd7b;p=freetel-svn-tracking.git initial import git-svn-id: https://svn.code.sf.net/p/freetel/code@28 01035d8c-6547-0410-b346-abe4f91aad63 --- diff --git a/codec2/COPYING b/codec2/COPYING new file mode 100644 index 00000000..d60c31a9 --- /dev/null +++ b/codec2/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +operating system on which the executable runs, unless that component +itself accompanies the executable. + +If distribution of executable or object code is made by offering +access to copy from a designated place, then offering equivalent +access to copy the source code from the same place counts as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + + 4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + 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 program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/codec2/README.txt b/codec2/README.txt new file mode 100644 index 00000000..8ace7817 --- /dev/null +++ b/codec2/README.txt @@ -0,0 +1,60 @@ +README.txt for codec2 +David Rowe +21 August 2009 + +Introduction +------------ + +codec2 is a open source low bit rate speech codec designed for +communications quality speech at around 2400 kbit/s. Applications +include low bandwidth HF/VHF digital radio. + +Status +------ + +Unquantised encoder and decoder running under Linux/gcc, pitch +estimator untested. + +Quick Start +----------- + +To encode the file raw/hts1a.raw to a set of sinusoidal model +parameters (src/hts1.mdl) then decode to a raw file src/hts1a_uq: + +$ cd src +$ make +$ ./sinenc ../raw/hts1a.raw hts1.mdl 300 ../pitch/hts1a.p +$ ./sinedec ../raw/hts1a.raw hts1.mdl -o hts1a_uq.raw +$ play -f s -r 8000 -s w ../raw/hts1a.raw +$ play -f s -r 8000 -s w hts1a_uq.raw + +Plan +---- + +[X] Milestone 0 - Project kick off +[X] Milestone 1 - Baseline unquantised codec running under Linux/gcc +[ ] Milestone 2 - Spectral amplitudes quantised +[ ] Milestone 3 - Prototype 2400 bit/s codec + +Directories +----------- + +src - C source code +octave - Matlab/Octave scripts +pitch - pitch estimator output files +raw - speech files in raw format (16 bits signed linear) +unittest - Unit test source code +wav - speech files in wave file format + +References +---------- + +[1] Introductory Blog Post: + http://www.rowetel.com/blog/?p=128 + +[2] Bruce Parens introducing the project: + http://codec2.org/ + +[3] Davids Thesis, used for baseline algorithm: + http://www.itr.unisa.edu.au/~steven/thesis/dgr.pdf + diff --git a/codec2/TODO.txt b/codec2/TODO.txt new file mode 100644 index 00000000..93f4140d --- /dev/null +++ b/codec2/TODO.txt @@ -0,0 +1,13 @@ +TODO for codec2 +--------------- + +[X] Convert files from DOS to Unix +[X] Get sinenc and sinedec to build and run under gcc +[ ] refactor + [ ] each source file has it's own header + [ ] no globals + [ ] Consistent file headers + [X] GPL2 notice in each file +[ ] Replace Numerical Recipes in C (NRC) four1.c and four1.h with Gnu + Science Lib (GSL) SL FFT as NRC code has restrictive licencing +[ ] change speech files from raw 16 bit files to wave files \ No newline at end of file diff --git a/codec2/octave/.gitignore b/codec2/octave/.gitignore new file mode 100644 index 00000000..e69de29b diff --git a/codec2/pitch/hts1a.p b/codec2/pitch/hts1a.p new file mode 100644 index 00000000..c11b8e90 --- /dev/null +++ b/codec2/pitch/hts1a.p @@ -0,0 +1,298 @@ +111.627907 +97.959183 +97.959183 +97.959183 +87.272736 +78.048775 +112.280701 +120.000008 +61.538464 +68.817207 +84.210526 +90.140846 +90.140846 +90.140846 +101.587303 +80.000000 +72.727272 +95.522392 +90.140846 +90.140846 +101.587303 +90.140846 +85.333336 +86.486488 +91.428574 +91.428574 +91.428574 +91.428574 +91.428574 +90.140846 +86.486488 +86.486488 +85.333336 +85.333336 +85.333336 +81.012657 +74.418610 +71.111115 +71.111115 +71.111115 +71.111115 +68.085106 +68.085106 +67.368423 +67.368423 +70.329674 +70.329674 +70.329674 +71.111115 +74.418610 +74.418610 +75.294121 +79.012352 +85.333336 +96.969704 +111.627907 +111.627907 +120.000008 +111.627907 +104.347832 +104.347832 +97.959183 +104.347832 +104.347832 +104.347832 +104.347832 +104.347832 +104.347832 +104.347832 +104.347832 +97.959183 +97.959183 +112.280701 +112.280701 +96.969704 +96.969704 +96.969704 +110.344841 +104.347832 +97.959183 +97.959183 +104.347832 +97.959183 +104.347832 +120.000008 +104.347832 +120.000008 +120.000008 +97.959183 +83.116882 +75.294121 +71.910118 +71.910110 +71.910110 +71.910110 +75.294121 +76.190483 +80.000008 +80.000008 +84.210526 +85.333336 +90.140846 +101.587303 +108.474571 +104.347832 +120.000008 +120.000008 +104.347832 +104.347832 +71.111115 +88.888893 +75.294121 +111.627907 +120.000008 +120.000008 +97.959183 +111.627907 +111.627907 +111.627907 +97.959183 +92.307693 +92.307693 +92.307693 +92.307693 +120.000008 +111.627907 +111.627907 +86.486488 +85.333336 +85.333336 +90.140846 +95.522392 +101.587311 +101.587311 +104.918037 +104.347832 +104.347832 +111.627907 +120.000008 +97.959183 +104.347832 +111.627907 +88.888893 +80.000000 +81.012657 +85.333336 +85.333336 +86.486488 +91.428574 +90.140846 +91.428574 +96.969704 +96.969704 +95.522392 +95.522392 +95.522392 +96.969704 +96.969704 +98.461533 +104.918022 +97.959183 +97.959183 +97.959183 +104.347832 +120.000008 +120.000008 +92.307693 +92.307693 +77.108429 +79.012344 +75.294121 +75.294121 +76.190483 +76.190483 +80.000008 +81.012657 +85.333336 +85.333336 +85.333336 +85.333336 +85.333336 +90.140846 +90.140846 +91.428574 +96.969704 +98.461533 +120.000008 +120.000008 +104.347832 +97.959183 +97.959183 +104.918037 +120.000008 +120.000008 +120.000008 +104.347832 +92.307693 +72.727272 +72.727272 +76.190483 +84.210533 +88.888901 +120.000008 +104.347832 +120.000008 +120.000008 +111.627907 +92.307693 +97.959183 +97.959183 +111.627907 +120.000008 +120.000008 +97.959183 +97.959183 +104.347832 +104.347832 +104.347832 +111.627907 +120.000008 +97.959183 +104.347832 +97.959183 +97.959183 +84.210526 +94.117653 +96.969704 +110.344841 +120.000008 +97.959183 +97.959183 +104.347832 +97.959183 +104.347832 +97.959183 +97.959183 +111.627907 +120.000008 +92.307693 +92.307693 +98.461533 +98.461533 +104.918022 +111.627907 +111.627907 +92.307693 +97.959183 +92.307693 +92.307693 +92.307693 +92.307693 +92.307693 +57.657658 +90.140846 +90.140846 +95.522392 +101.587311 +101.587311 +108.474586 +111.627907 +97.959183 +111.627907 +120.000008 +92.307693 +74.418610 +74.418610 +74.418610 +74.418610 +76.190483 +72.727280 +76.190483 +76.190483 +69.565224 +66.666672 +54.700855 +56.637169 +56.637169 +71.910110 +90.140846 +90.140846 +72.727272 +72.727272 +72.727272 +72.727272 +55.172413 +57.142857 +55.172413 +90.140846 +95.522392 +101.587311 +101.587311 +71.910110 +74.418610 +46.376812 +40.000000 +95.522392 +0 +0 diff --git a/codec2/raw/hts.raw b/codec2/raw/hts.raw new file mode 100644 index 00000000..79f869ad Binary files /dev/null and b/codec2/raw/hts.raw differ diff --git a/codec2/raw/hts1.raw b/codec2/raw/hts1.raw new file mode 100644 index 00000000..3369387e Binary files /dev/null and b/codec2/raw/hts1.raw differ diff --git a/codec2/raw/hts1a.raw b/codec2/raw/hts1a.raw new file mode 100644 index 00000000..7332f936 Binary files /dev/null and b/codec2/raw/hts1a.raw differ diff --git a/codec2/src/Makefile b/codec2/src/Makefile new file mode 100644 index 00000000..b83afdb0 --- /dev/null +++ b/codec2/src/Makefile @@ -0,0 +1,19 @@ +CC=gcc +CFLAGS=-g -Wall + +SINENC_OBJ = sinenc.o globals.o initenc.o four1.o refine.o spec.o +SINEDEC_OBJ = sinedec.o globals.o initenc.o initdec.o four1.o synth.o + +all: sinenc sinedec + +sinenc: $(SINENC_OBJ) + $(CC) $(CFLAGS) $(SINENC_OBJ) -o sinenc -lm + +sinedec: $(SINEDEC_OBJ) + $(CC) $(CFLAGS) $(SINEDEC_OBJ) -o sinedec -lm + +%.o : %.c + $(CC) -c $(CFLAGS) $< -o $@ + +clean : + rm -f *.o *~ src/*~ diff --git a/codec2/src/defines.h b/codec2/src/defines.h new file mode 100644 index 00000000..b524b80c --- /dev/null +++ b/codec2/src/defines.h @@ -0,0 +1,83 @@ +/*---------------------------------------------------------------------------*\ + + FILE........: defines.h + AUTHOR......: David Rowe + DATE CREATED: 23/4/93 + + Defines and structures used throughout the codec. + +\*---------------------------------------------------------------------------*/ + +/* + Copyright (C) 2009 David Rowe + + All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2, as + published by the Free Software Foundation. This program is + distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public + License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +/*---------------------------------------------------------------------------*\ + + DEFINES + +\*---------------------------------------------------------------------------*/ + +/* General defines */ + +#define N 80 /* number of samples per frame */ +#define MAX_AMP 80 /* maximum number of harmonics */ +#define PI 3.141592654 /* mathematical constant */ +#define TWO_PI 6.283185307 /* mathematical constant */ +#define FC 4000 /* cut-off frequency */ + +/* Pitch estimation defines */ + +#define M 320 /* pitch analysis frame size */ +#define P_MIN 20 /* minimum pitch */ +#define P_MAX 160 /* maximum pitch */ + +/* Encoder defines */ + +#define AW_ENC 512 /* maximum encoder analysis window size */ +#define FFT_ENC 512 /* size of FFT used for encoder analysis */ + +/* Decoder defines */ + +#define AW_DEC 160 /* number of samples in synthesis window */ +#define FFT_DEC 512 /* number of points in DFT */ +#define TW 40 /* Trapezoidal UV synthesis window overlap */ +#define MAX_STR 256 + +/*---------------------------------------------------------------------------*\ + + TYPEDEFS + +\*---------------------------------------------------------------------------*/ + +/* Complex number */ + +typedef struct { + float real; + float imag; +} COMP; + + +/* Structure to hold unquantised model parameters for one frame */ + +typedef struct { + float Wo; /* fundamental frequency estimate in radians */ + int L; /* number of harmonics over the current frame */ + float v[MAX_AMP]; /* voicing measures */ + float A[MAX_AMP]; /* average magnitude/unit frequency samples */ + float phi[MAX_AMP]; /* phase of each harmonic */ +} MODEL; diff --git a/codec2/src/four1.c b/codec2/src/four1.c new file mode 100644 index 00000000..1c1ede59 --- /dev/null +++ b/codec2/src/four1.c @@ -0,0 +1,64 @@ +/*---------------------------------------------------------------------------*\ + + FILE........: four1.c + AUTHOR......: David Rowe + DATE CREATED: 20/2/95 + + Numerical Recipies in C FFT function. I have a nasty licence so please + replace me. + +\*---------------------------------------------------------------------------*/ + +#include + +#define SWAP(a,b) tempr=(a);(a)=(b);(b)=tempr + +void four1(data,nn,isign) +float data[]; +int nn,isign; +{ + int n,mmax,m,j,istep,i; + double wtemp,wr,wpr,wpi,wi,theta; + float tempr,tempi; + + n=nn << 1; + j=1; + for (i=1;i i) { + SWAP(data[j],data[i]); + SWAP(data[j+1],data[i+1]); + } + m=n >> 1; + while (m >= 2 && j > m) { + j -= m; + m >>= 1; + } + j += m; + } + mmax=2; + while (n > mmax) { + istep=2*mmax; + theta=6.28318530717959/(isign*mmax); + wtemp=sin(0.5*theta); + wpr = -2.0*wtemp*wtemp; + wpi=sin(theta); + wr=1.0; + wi=0.0; + for (m=1;m gmax) { + gmax = Fw[i].real; + gmax_bin = i; + } + } + + /* Now post process estimate by searching submultiples */ + + mult = 2; + min_bin = PE_FFT_SIZE*DEC/pmax; + thresh = CNLP*gmax; + cmax_bin = gmax_bin; + + while(gmax_bin/mult >= min_bin) { + + b = gmax_bin/mult; /* determine search interval */ + bmin = 0.8*b; + bmax = 1.2*b; + if (bmin < min_bin) + bmin = min_bin; + + lmax = 0; + for (b=bmin; b<=bmax; b++) /* look for maximum in interval */ + if (Fw[b].real > lmax) { + lmax = Fw[b].real; + lmax_bin = b; + } + + if (lmax > thresh) + if (lmax > Fw[lmax_bin-1].real && lmax > Fw[lmax_bin+1].real) { + cmax = lmax; + cmax_bin = lmax_bin; + } + + mult++; + } + + F0 = (float)cmax_bin*SAMPLE_RATE/(PE_FFT_SIZE*DEC); + *pitch = SAMPLE_RATE/F0; + + /* Shift samples in buffer to make room for new samples */ + + for(i=0; i TWO_PI/P_MIN) + model.Wo = TWO_PI/P_MIN; + + model.L = floor(PI/model.Wo); +} + +/*---------------------------------------------------------------------------*\ + + FUNCTION....: hs_pitch_refinement + AUTHOR......: David Rowe + DATE CREATED: 27/5/94 + + Harmonic sum pitch refinement function. + + pmin pitch search range minimum + pmax pitch search range maximum + step pitch search step size + model current pitch estimate in model.Wo + + model refined pitch estimate in model.Wo + +\*---------------------------------------------------------------------------*/ + +void hs_pitch_refinement(float pmin, float pmax, float pstep) +{ + int m; /* loop variable */ + int b; /* bin for current harmonic centre */ + float E; /* energy for current pitch*/ + float Wo; /* current "test" fundamental freq. */ + float Wom; /* Wo that maximises E */ + float Em; /* mamimum energy */ + float r; /* number of rads/bin */ + float p; /* current pitch */ + + /* Initialisation */ + + model.L = PI/model.Wo; /* use initial pitch est. for L */ + Em = 0.0; + r = TWO_PI/FFT_ENC; + + /* Determine harmonic sum for a range of Wo values */ + + for(p=pmin; p<=pmax; p+=pstep) { + E = 0.0; + Wo = TWO_PI/p; + + /* Sum harmonic magnitudes */ + + for(m=1; m<=model.L; m++) { + b = floor(m*Wo/r + 0.5); + E += Sw[b].real*Sw[b].real + Sw[b].imag*Sw[b].imag; + } + + /* Compare to see if this is a maximum */ + + if (E > Em) { + Em = E; + Wom = Wo; + } + } + + model.Wo = Wom; +} + diff --git a/codec2/src/sine.h b/codec2/src/sine.h new file mode 100644 index 00000000..fb22fd30 --- /dev/null +++ b/codec2/src/sine.h @@ -0,0 +1,78 @@ +/*---------------------------------------------------------------------------*\ + + FILE........: sine.h + AUTHOR......: David Rowe + DATE CREATED: 1/11/94 + + Header file for Sinusoidal coder. + +\*---------------------------------------------------------------------------*/ + +/* + Copyright (C) 2009 David Rowe + + All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2, as + published by the Free Software Foundation. This program is + distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public + License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +/*---------------------------------------------------------------------------*\ + + INCLUDES + +\*---------------------------------------------------------------------------*/ + +#include +#include +#include + +#include "defines.h" /* defines for sinusoidal coder */ +#include "globals.h" /* external globals */ + +/*---------------------------------------------------------------------------*\ + + FUNCTIONS + +\*---------------------------------------------------------------------------*/ + +/* functions in refine.c */ + +void dft_speech(); +void two_stage_pitch_refinement(); +void hs_pitch_refinement(float pmin, float pmax, float pstep); + +/* functions in spec.c */ + +void estimate_amplitudes(); +void estimate_voicing(); +void estimate_voicing_av(); +float voicing(int lower, int upper); + +/* functions in four1.c */ + +void four1(); + +/* functions in synth.c */ + +void synthesise_mixed(); + +/* functions in initenc.c and initdec.c */ + +void init_encoder(void); +float make_window(); +void init_decoder(); + +/* functions in gasdev.c */ + +float gasdev(); + diff --git a/codec2/src/sinedec.c b/codec2/src/sinedec.c new file mode 100644 index 00000000..fece4e8a --- /dev/null +++ b/codec2/src/sinedec.c @@ -0,0 +1,166 @@ +/*---------------------------------------------------------------------------*\ + + FILE........: sinedec.c + AUTHOR......: David Rowe + DATE CREATED: 20/2/95 + + Decoder program for sinudoidal codec. + +\*---------------------------------------------------------------------------*/ + +/* + Copyright (C) 2009 David Rowe + + All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2, as + published by the Free Software Foundation. This program is + distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public + License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include +#include "sine.h" + +/*---------------------------------------------------------------------------*\ + + switch_present() + + Searches the command line arguments for a "switch". If the switch is + found, returns the command line argument where it ws found, else returns + NULL. + +\*---------------------------------------------------------------------------*/ + +int switch_present(sw,argc,argv) +register char sw[]; /* switch in string form */ +register int argc; /* number of command line arguments */ +register char *argv[]; /* array of command line arguments in string form */ +{ + register int i; /* loop variable */ + + for(i=1; i 32767.0) + buf[i] = 32767; + else if (Sn_[i] < -32767.0) + buf[i] = -32767; + else + buf[i] = Sn_[i]; + } + fwrite(buf,sizeof(short),N,fout); + } + + } + + if (fout != NULL) + fclose(fout); + + return 0; +} + diff --git a/codec2/src/sinenc.c b/codec2/src/sinenc.c new file mode 100644 index 00000000..66795f2e --- /dev/null +++ b/codec2/src/sinenc.c @@ -0,0 +1,133 @@ +/*---------------------------------------------------------------------------*\ + + FILE........: sinenc.c + AUTHOR......: David Rowe + DATE CREATED: 20/2/95 + + Sinusoidal speech encoder program using external (Matlab) pitch estimator. + +\*---------------------------------------------------------------------------*/ + +/* + Copyright (C) 2009 David Rowe + + All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2, as + published by the Free Software Foundation. This program is + distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public + License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "sine.h" + +/*---------------------------------------------------------------------------*\ + + MAIN + +\*---------------------------------------------------------------------------*/ + +int main(int argc, char *argv[]) +{ + FILE *fin; /* input speech sample file */ + FILE *fmodel; /* output file of model parameters */ + FILE *fp; /* input text file containing pitch estimates */ + short buf[N]; /* input speech sample buffer */ + int length; /* number of frames to process */ + float pitch; /* current pitch estimate from external pitch file */ + int i; /* loop variable */ + FILE *fref; /* optional output file with refined pitch estimate */ + + if (argc < 5) { + printf("usage: sinenc InputFile ModelFile Frames PitchFile\n"); + exit(1); + } + + /* Interpret command line arguments -------------------------------------*/ + + if ((fin = fopen(argv[1],"rb")) == NULL) { + printf("Error opening input file: %s\n",argv[1]); + exit(1); + } + + if ((fmodel = fopen(argv[2],"wb")) == NULL) { + printf("Error opening output model file: %s\n",argv[2]); + exit(1); + } + + length = atoi(argv[3]); + + if ((fp = fopen(argv[4],"rt")) == NULL) { + printf("Error opening input pitch file: %s\n",argv[4]); + exit(1); + } + + if (argc > 5) { + if ((fref = fopen(argv[5],"wt")) == NULL) { + printf("Error opening output pitch refinement file: %s\n",argv[5]); + exit(1); + } + } + else + fref = NULL; + + init_encoder(); + Nw = 220; + make_window(Nw); + + /* Main loop ------------------------------------------------------------*/ + + while(fread(buf,sizeof(short),N,fin) == N && frames != length) { + frames++; + + /* Update input speech buffers */ + + for(i=0; i 2) { + fscanf(fp,"%f\n",&pitch); + if (pitch > P_MAX) pitch = P_MAX; + if (pitch < P_MIN) pitch = P_MIN; + } + else + pitch = P_MIN; + + /* construct analysis window */ + + model.Wo = TWO_PI/pitch; + + /* estimate and model parameters */ + + dft_speech(); + two_stage_pitch_refinement(); + estimate_amplitudes(); + + /* save model parameters */ + + if (fref != NULL && frames > 2) + fprintf(fref,"%f\n",model.Wo); + fwrite(&model,sizeof(model),1,fmodel); + printf("frame: %d\r",frames); + } + + /* close files and exit */ + + if (fref != NULL) fclose(fref); + fclose(fin); + fclose(fmodel); + + return 0; +} + diff --git a/codec2/src/spec.c b/codec2/src/spec.c new file mode 100644 index 00000000..247d5123 --- /dev/null +++ b/codec2/src/spec.c @@ -0,0 +1,78 @@ +/*---------------------------------------------------------------------------*\ + + FILE........: spec.c + AUTHOR......: David Rowe + DATE CREATED: 27/5/94 + + Functions for estimating the complex amplitude of harmonics. + +\*---------------------------------------------------------------------------*/ + +/* + Copyright (C) 2009 David Rowe + + All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2, as + published by the Free Software Foundation. This program is + distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public + License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "sine.h" + +/*---------------------------------------------------------------------------*\ + + FUNCTION....: estimate_amplitudes + AUTHOR......: David Rowe + DATE CREATED: 27/5/94 + + Estimates the complex amplitudes of the harmonics. Also generates + all voiced synthetic spectrum for later voicing estimation. + + INPUT.......: global float Sw[] DFT of speech + global MODEL model contains parameters L and Wo + + OUTPUT......: global float Sw_[] DFT of all voiced synthesised speech + global MODEL model contains parameters A[] and phi[] + +\*---------------------------------------------------------------------------*/ + +void estimate_amplitudes() +{ + int i,m; /* loop variables */ + int am,bm; /* bounds of current harmonic */ + int b; /* DFT bin of centre of current harmonic */ + float den; /* denominator of amplitude expression */ + float r; /* number of rads/bin */ + + r = TWO_PI/FFT_ENC; + + for(m=1; m<=model.L; m++) { + den = 0.0; + am = floor((m - 0.5)*model.Wo/r + 0.5); + bm = floor((m + 0.5)*model.Wo/r + 0.5); + b = floor(m*model.Wo/r + 0.5); + + /* Estimate ampltude of harmonic */ + + den = 0.0; + for(i=am; iL; l++) { + b = floor(l*model->Wo*FFT_DEC/TWO_PI + 0.5); + Sw_[b].real = model->A[l]*cos(model->phi[l]); + Sw_[b].imag = model->A[l]*sin(model->phi[l]); + Sw_[FFT_DEC-b].real = Sw_[b].real; + Sw_[FFT_DEC-b].imag = -Sw_[b].imag; + } + + /* Perform inverse DFT */ + + four1(&Sw_[-1].imag,FFT_DEC,1); + + /* Overlap add to previous samples */ + + for(i=0; i +#include +#include +#include "four1.c" +#include "nlpl.c" + +/*---------------------------------------------------------------------------*\ + + FUNCTIONS + +\*---------------------------------------------------------------------------*/ + +void swap(buf,n) +short buf[]; /* array of speech samples */ +int n; /* number of speech samples */ +{ + int i; + short a,b; + + for(i=0; i> 8) & 0xff; + buf[i] = (a << 8) | b; + } +} + +void short_to_float(b,s,n) +short b[]; /* buffer of short speech samples */ +float s[]; /* buffer of float speech samples */ +int n; /* number of speech samples */ +{ + int i; + + for(i=0; i 2) + fprintf(fout,"%f\n",pitch); + + printf("frame: %d pitch: %f\n",frames,pitch); + + } + fprintf(fout,"0\n0\n"); + + fclose(fin); + fclose(fout); + } + else + printf("\nusage: tnlp InputFile OutputFile\n"); +} + + diff --git a/codec2/wav/.gitignore b/codec2/wav/.gitignore new file mode 100644 index 00000000..e69de29b