initial commit

main
josch 10 years ago
commit f1b937ac7a

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all:
gcc stride_fread.c -o stride
gcc concatenate_wav.c -o concatenate_wav

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#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <error.h>
#include <limits.h>
void my_splice(int in, int out) {
int pipefd[2], nr, ret;
if (pipe(pipefd) < 0)
error(1, errno, "cannot create pipe");
for (;;) {
nr = splice(in, 0, pipefd[1], 0, INT_MAX, 0);
if (nr == -1)
error(1, errno, "cannot read input");
if (nr == 0)
break;
do {
ret = splice(pipefd[0], 0, out, 0, nr, 0);
if (ret == -1)
error(1, errno, "cannot write");
nr -= ret;
} while (nr);
}
close(pipefd[0]);
close(pipefd[1]);
}
int main(int argc, char **argv) {
int i;
char **argvp = argv+1;
int fd, ret;
ssize_t ret2;
for (i = 1; i < argc; i++, argvp++) {
fd = open(*argvp, O_RDONLY);
if (fd == -1)
error(1, errno, "cannot open file %s", *argvp);
ret = lseek(fd, 46, SEEK_SET);
if (ret == -1)
error(1, errno, "cannot seek in file %s", *argvp);
for (;;) {
ret2 = sendfile(STDOUT_FILENO, fd, 0, INT_MAX);
if (ret2 == -1)
error(1, errno, "cannot copy", *argvp);
if (ret2 < 4096)
break;
}
/* my_splice(fd, STDOUT_FILENO);*/
ret = close(fd);
if (ret == -1)
error(1, errno, "cannot close file %s", *argvp);
}
return 0;
}

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#!/bin/sh
#data_offset=$((0x$(xxd -plain -s 0x10 -l 4 $1 | sed 's/\(..\)\(..\)\(..\)\(..\)/\4\3\2\1/')+28))
#channels=$((0x$(xxd -plain -s 0x16 -l 2 $1 | sed 's/\(..\)\(..\)/\2\1/')))
#samples=$((0x$(xxd -plain -s 0x18 -l 4 $1 | sed 's/\(..\)\(..\)\(..\)\(..\)/\4\3\2\1/')))
#bps=$((0x$(xxd -plain -s 0x22 -l 2 $1 | sed 's/\(..\)\(..\)/\2\1/')))
data=`xxd -plain -s 0x08 -l 28 $1`
offset=$((0x$(echo $data | sed 's/.\{16\}\(..\)\(..\)\(..\)\(..\).\{32\}/\4\3\2\1/')+28))
dd if=$1 skip=1 bs=$offset 2>/dev/null
shift
for f in $@; do
tmpdata=`xxd -plain -s 0x08 -l 28 $f`
if [ "$data" != "$tmpdata" ]; then
echo not matching wav properties for $f >&2
exit
fi
dd if=$f skip=1 bs=$offset 2>/dev/null
done

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import zipfile
from lxml import etree
import sys
import os
from operator import itemgetter
from re import split
import multiprocessing, subprocess
tempdir="/dev/shm"
cwd=os.getcwd()
ns = {
'n':'urn:oasis:names:tc:opendocument:xmlns:container',
'pkg':'http://www.idpf.org/2007/opf',
'dc':'http://purl.org/dc/elements/1.1/',
'ncx':'http://www.daisy.org/z3986/2005/ncx/',
'xhtml':'http://www.w3.org/1999/xhtml'
}
if len(sys.argv) not in [2,3]:
print "usage: %d epub [number]"
exit(1)
fzip = zipfile.ZipFile(sys.argv[1])
txt = fzip.read('META-INF/container.xml')
tree = etree.fromstring(txt)
cfname = tree.xpath('n:rootfiles/n:rootfile/@full-path',namespaces=ns)[0]
pdir = os.path.dirname(cfname)
cf = fzip.read(cfname)
tree = etree.fromstring(cf)
ncxname = tree.xpath('/pkg:package/pkg:manifest/pkg:item[@id="ncx"]/@href',namespaces=ns)[0]
ncx = fzip.read(os.path.join(pdir, ncxname))
tree = etree.fromstring(ncx)
if len(sys.argv) == 2:
navpoints = tree.xpath('/ncx:ncx/ncx:navMap/ncx:navPoint',namespaces=ns)
else:
# the following xpath expression finds the subtree for the book we want to print
navpoints = tree.xpath("/ncx:ncx/ncx:navMap/ncx:navPoint[starts-with(ncx:navLabel/ncx:text, 'Nr. %s')]/ncx:navPoint"%sys.argv[2],namespaces=ns)
title = tree.xpath("/ncx:ncx/ncx:navMap/ncx:navPoint/ncx:navLabel/ncx:text[starts-with(., 'Nr. %s')]/text()"%sys.argv[2], namespaces=ns)[0]
dnavpoint = list()
for navpoint in navpoints:
r = lambda expr: navpoint.xpath(expr, namespaces=ns)[0]
label = r('ncx:navLabel/ncx:text/text()')
if label not in ['Cover', 'PERRY RHODAN - die Serie', 'Impressum']:
order = int(r('@playOrder'))
content = r('ncx:content/@src')
dnavpoint.append((order, content))
# to be able to work offline, this needs the w3c-sgml-lib package
parser = etree.XMLParser(load_dtd=True)
i = 0
tasks = []
for _, pagename in sorted(dnavpoint, key=itemgetter(0)):
page = fzip.read(os.path.join(pdir, pagename))
tree = etree.fromstring(page, parser)
paragraphs = tree.xpath('/xhtml:html/xhtml:body/xhtml:p', namespaces=ns)
for p in paragraphs:
p = split(r"(\xbb.+?\xab)", p.xpath('string()'))
for s in p:
s = s.strip(', .')
if s == '':
continue
if s == u'\xa0':
tasks.append(["ln", "-s", "%s/silence.wav"%cwd, "%s/%04d.wav"%(tempdir,i)])
i+=1
continue
if s.startswith(u'\xbb') and s.endswith(u'\xab'):
tasks.append(["wine", "sapi2wav.exe", "%s/%04d.wav"%(tempdir, i), "3", "-t", s])
else:
tasks.append(["wine", "sapi2wav.exe", "%s/%04d.wav"%(tempdir, i), "2", "-t", s])
i+=1
tasks.append(["ln", "-s", "%s/silence.wav"%cwd, "%s/%04d.wav"%(tempdir,i)])
i+=1
tasks.append(["ln", "-s", "%s/silence.wav"%cwd, "%s/%04d.wav"%(tempdir,i)])
i+=1
wavs = ["%s/%04d.wav"%(tempdir,j) for j in range(i)]
for wav in wavs:
if os.path.exists(wav):
os.unlink(wav)
def worker(cmd):
with open(os.devnull, "w") as fnull:
subprocess.call(cmd, shell=False, stdout = fnull, stderr = fnull)
cpucount = multiprocessing.cpu_count()
cpucount = 1
pool = multiprocessing.Pool(processes=cpucount)
num_tasks = float(len(tasks))
for i,_ in enumerate(pool.imap_unordered(worker, tasks)):
sys.stdout.write("%f\r"%(100*i/num_tasks))
sys.stdout.flush()
p1 = subprocess.Popen(["./concatenate_wav"]+wavs, stdout=subprocess.PIPE)
p2 = subprocess.Popen(["./stride"], stdin=p1.stdout, stdout=subprocess.PIPE)
p3 = subprocess.Popen(["sox", "--show-progress", "--type", "raw", "--rate", "22050", "--encoding", "signed-integer", "--bits", "16", "--channels", "1", "-", "--rate", "22050", "--comment", "", "--compression", "0", "%s.ogg"%title, "tempo", "-s", "2.0"], stdin=p2.stdout, stdout=None)
p1.stdout.close()
p2.stdout.close()
p3.wait()
for wav in wavs:
os.unlink(wav)

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#!/usr/bin/python
from struct import pack
from sys import stdout
duration = 1 # seconds of silence
channels = 1 # number of channels
bps = 16 # bits per sample
sample = 44100 # sample rate
ExtraParamSize = 0
Subchunk1Size = 16+2+ExtraParamSize
Subchunk2Size = duration*sample*channels*bps/8
ChunkSize = 4 + (8 + Subchunk1Size) + (8 + Subchunk2Size)
stdout.write("".join([
'RIFF', # ChunkID (magic) # 0x00
pack('<I', ChunkSize), # ChunkSize # 0x04
'WAVE', # Format # 0x08
'fmt ', # Subchunk1ID # 0x0c
pack('<I', Subchunk1Size), # Subchunk1Size # 0x10
pack('<H', 1), # AudioFormat (1=PCM) # 0x14
pack('<H', channels), # NumChannels # 0x16
pack('<I', sample), # SampleRate # 0x18
pack('<I', bps/8 * channels * sample), # ByteRate # 0x1c
pack('<H', bps/8 * channels), # BlockAlign # 0x20
pack('<H', bps), # BitsPerSample # 0x22
pack('<H', ExtraParamSize), # ExtraParamSize # 0x22
'data', # Subchunk2ID # 0x24
pack('<I', Subchunk2Size), # Subchunk2Size # 0x28
'\0'*Subchunk2Size
]))

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#!/usr/bin/python
# -*- coding: utf-8 -*-
from re import split, sub
from sys import argv
from os import getcwd
f = open(argv[1], "r")
stuff = list()
pagenum = 1
for line in f:
if line == "%d\n"%pagenum:
pagenum+=1
elif line.strip() != "":
stuff.append(line.strip()) # replace newlines with spaces
stuff = " ".join(stuff)
stuff = sub(r"(\d)\s(\d)", r"\1\2", stuff) # remove whitespaces between digits
stuff = stuff.replace("'", "'\"'\"'")
stuff = split(r"(».+?«)", stuff)
if len(stuff) == 1:
stuff = split(r"(„.+?“)", stuff[0])
if len(stuff) == 1:
stuff = split(r"(\".+?\")", stuff[0])
if len(stuff) == 1:
print "can't split"
exit(1)
processes = list()
tempdir="/dev/shm"
cwd=getcwd()
i = 0
for s in stuff:
s = s.strip(', ')
if len(s) == 0:
continue
if s.startswith('»') and s.endswith('«') or s.startswith('') and s.endswith('') or s.startswith('"') and s.endswith('"'):
print "wine sapi2wav.exe %s/%04d.wav 3 -t '%s'"%(tempdir, i, s)
else:
print "wine sapi2wav.exe %s/%04d.wav 2 -t '%s'"%(tempdir, i, s)
i+=1
print "ln -s %s/silence.wav %s/%04d.wav"%(cwd,tempdir,i)
i+=1
#python novel2audio.py novel.txt | ./parallel.sh
#./concatenate_wav.sh [0-9]*.wav | python stride.py | oggenc --quality 0 --raw --raw-bits 16 --raw-chan 1 --raw-rate 22050 - > out.ogg
#./concatenate_wav.sh [0-9]*.wav | python stride.py | sox --type raw --rate 22050 --encoding signed-integer --bits 16 --channels 1 - --rate 22050 --comment "" --compression 0 out.ogg tempo -s 2.0
# the stride of 2 is used because the bytes in the input wav
# files are of the form ABABCDCDEFEFGHGH
# since the input is 44100Hz, remove every 2nd byte tuple and output 22050Hz
# sox can also downsample but it easily converts
# 00000000 to 0100 or to FFFF
# using ./stride is also twice as fast as having sox do the downsampling
#sudo mount -o remount,size=1200M /dev/shm
#rm -rf /dev/shm/[0-9]*.wav
#for f in ../Perry\ Rhodan\ Ebook\ Sammlung\ Komplett/txt/Perry\ Rhodan\ -\ Romanzyklus\ -\ 0300-0399\ -\ M\ 87/<365-399>*; do
# cat "$f" | tr '»' '"' | tr '«' '"' | tr "'" '"' > /tmp/out
# python novel2audio.py "/tmp/out" | /usr/bin/time xargs --delimiter='\n' --max-args=1 --max-procs=4 -I '{}' sh -c '{} > /dev/null'
# ./concatenate_wav /dev/shm/[0-9]*.wav | ./stride | sox --show-progress --type raw --rate 22050 --encoding signed-integer --bits 16 --channels 1 - --rate 22050 --comment "" --compression 0 "`basename \"$f\" .txt`.ogg" tempo -s 2.0
# rm /dev/shm/[0-9]*.wav
#done

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#!/bin/sh
NUM=0
QUEUE=""
MAX_NPROC=12
while read CMD; do
sh -c "$CMD" &
PID=$!
QUEUE="$QUEUE $PID"
NUM=$(($NUM+1))
# if enough processes were created
while [ $NUM -ge $MAX_NPROC ]; do
# check whether any process finished
for PID in $QUEUE; do
if [ ! -d /proc/$PID ]; then
TMPQUEUE=$QUEUE
QUEUE=""
NUM=0
# rebuild new queue from processes
# that are still alive
for PID in $TMPQUEUE; do
if [ -d /proc/$PID ]; then
QUEUE="$QUEUE $PID"
NUM=$(($NUM+1))
fi
done
break
fi
done
sleep 0.5
done
done
wait

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@ -0,0 +1,278 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
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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
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POSSIBILITY OF SUCH DAMAGES.

@ -0,0 +1,38 @@
-$A8
-$B-
-$C+
-$D+
-$E-
-$F-
-$G+
-$H+
-$I+
-$J-
-$K-
-$L+
-$M-
-$N+
-$O+
-$P+
-$Q-
-$R-
-$S-
-$T-
-$U-
-$V+
-$W-
-$X+
-$YD
-$Z1
-cc
-AWinTypes=Windows;WinProcs=Windows;DbiTypes=BDE;DbiProcs=BDE;DbiErrs=BDE;
-H+
-W+
-M
-$M16384,1048576
-K$00400000
-LE"c:\program files\borland\delphi7\Projects\Bpl"
-LN"c:\program files\borland\delphi7\Projects\Bpl"
-w-UNSAFE_TYPE
-w-UNSAFE_CODE
-w-UNSAFE_CAST

@ -0,0 +1,132 @@
[FileVersion]
Version=7.0
[Compiler]
A=8
B=0
C=1
D=1
E=0
F=0
G=1
H=1
I=1
J=0
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ShowHints=1
ShowWarnings=1
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NamespacePrefix=
SymbolDeprecated=1
SymbolLibrary=1
SymbolPlatform=1
UnitLibrary=1
UnitPlatform=1
UnitDeprecated=1
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HiddenVirtual=1
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ForLoopVarVarPar=1
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FileOpen=1
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BadGlobalSymbol=1
DuplicateConstructorDestructor=1
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PackageNoLink=1
PackageThreadVar=1
ImplicitImport=1
HPPEMITIgnored=1
NoRetVal=1
UseBeforeDef=1
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UnitNameMismatch=1
NoCFGFileFound=1
MessageDirective=1
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LocaleToUnicode=1
ImagebaseMultiple=1
SuspiciousTypecast=1
PrivatePropAccessor=1
UnsafeType=0
UnsafeCode=0
UnsafeCast=0
[Linker]
MapFile=0
OutputObjs=0
ConsoleApp=0
DebugInfo=0
RemoteSymbols=0
MinStackSize=16384
MaxStackSize=1048576
ImageBase=4194304
ExeDescription=
[Directories]
OutputDir=
UnitOutputDir=
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Packages=vcl;rtl;vclx;indy;inet;xmlrtl;vclie;inetdbbde;inetdbxpress;dbrtl;dsnap;dsnapcon;vcldb;soaprtl;VclSmp;dbexpress;dbxcds;inetdb;bdertl;vcldbx;webdsnap;websnap;adortl;ibxpress;teeui;teedb;tee;dss;visualclx;visualdbclx;vclactnband;vclshlctrls;dclOfficeXP;SAPI5
Conditionals=
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RunParams=out.wav 1 -f c:\test.txt
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IncludeVerInfo=0
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@ -0,0 +1,12 @@
program sapi2wav;
uses
Forms,
ttswav in 'ttswav.pas' {MainForm};
{$R *.res}
begin
Application.Initialize;
Application.CreateForm(TMainForm, MainForm);
Application.Run;
end.

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@ -0,0 +1,31 @@
object MainForm: TMainForm
Left = 283
Top = 175
BorderStyle = bsNone
Caption = 'Sapi2wav'
ClientHeight = 133
ClientWidth = 228
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'MS Sans Serif'
Font.Style = []
OldCreateOrder = False
OnCreate = FormCreate
OnShow = FormShow
PixelsPerInch = 96
TextHeight = 13
object SpVoice1: TSpVoice
AutoConnect = False
ConnectKind = ckRunningOrNew
Left = 8
Top = 8
end
object SpFileStream: TSpFileStream
AutoConnect = False
ConnectKind = ckRunningOrNew
Left = 40
Top = 8
end
end

@ -0,0 +1,224 @@
{
SAPI2Wav. Command line "Text to Speech" to Wav file using MS SAPI.
Copyright (C) 2008 Dan Faerch
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Contact author at sapi2wav.dan [at] hacker.dk
}
unit ttswav;
interface
uses
// Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
// Dialogs, StdCtrls, OleServer, SpeechLib_TLB;
Windows, SysUtils, Forms,
OleServer, SpeechLib_TLB, Classes;
type
TMainForm = class(TForm)
SpVoice1: TSpVoice;
SpFileStream: TSpFileStream;
procedure FormCreate(Sender: TObject);
procedure FormShow(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
MainForm: TMainForm;
implementation
{$R *.dfm}
Function LoadFileToString(FileN: String):string;
var
ProgFile, FSize: Cardinal;
Buff: array[0..63999] of Char;
begin
Result := '';
if GetFileAttributesA(PChar(FileN)) = $FFFFFFFF then Exit;
try
ProgFile := CreateFile(PChar(FileN), GENERIC_READ, FILE_SHARE_READ, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if ProgFile <> INVALID_HANDLE_VALUE then
begin
FileSeek(ProgFile, 0, 0);
repeat
FillChar(Buff, SizeOf(Buff), 0);
ReadFile(ProgFile, Buff, SizeOf(Buff), FSize, nil);
if FSize > 0 then
Result := Result + Buff;
until (FSize = 0);
CloseHandle(ProgFile);
end;
Except
// do stuff..
end;
end;
//------------------------------------------------------
procedure TMainForm.FormCreate(Sender: TObject);
var filename : string;
text : string;
bool : boolean;
mode : string;
i : integer;
Voice : ISpeechObjectToken;
Voices: IspeechObjectTokens;
begin
MainForm.Height := 0;
MainForm.Width := 0;
Voices := SpVoice1.GetVoices('','');
if (ParamStr(1) = '-list') then
begin
for i := 0 to Voices.Count - 1 do
begin
writeln(inttostr(i+1)+': '+Voices.Item(i).GetDescription(0));
end;
Application.Terminate;
exit;
end;
if ParamCount < 4 then
begin
writeln('Usage:');
writeln(' sapi2wav.exe <outwave filename> <voice nr> -f <input text filename>');
writeln(' sapi2wav.exe <outwave filename> <voice nr> -t "<text to speak>"');
writeln('');
writeln('Arguments:');
writeln(' -list List voices and the number');
writeln(' -t Text to read out loud. Use quotes!');
writeln(' -f filename of textfile to read out loud. Use either no quotes or double qoutes!');
writeln(' ');
writeln('Examples:');
writeln(' sapi2wav.exe c:\out.wav 1 -t "Hellow world"');
writeln(' sapi2wav.exe readin.wav 3 -f my_data.txt');
Application.Terminate;
exit;
end;
//Check if filename is given
filename := ParamStr(1);
bool := true;
if length(filename)<5 then
begin
bool := false;
end;
if (copy(filename,length(filename)-3,4) <> '.wav') then
begin
bool:=false;
end;
if (not bool) then
begin
writeln('Filename is the first argument given and MUST end on ".wav"');
Application.Terminate;
exit;
end;
//-----------------
//Voice number arg
if (strtoint(ParamStr(2))>Voices.Count) then
begin
writeln('Unknown voice.nr.');
Application.Terminate;
exit;
end;
Voice := ISpeechObjectToken(Voices.Item(strtoint(ParamStr(2))-1));
writeln('Choosing voice '+ParamStr(2)+' - '+Voice.GetDescription(0));
SpVoice1.Voice := Voice;
//-------------------
//Get mode arg.
mode := ParamStr(3);
if (copy(mode,1,1) <> '-') then bool:=false;
mode := copy(mode,2,1);
if (bool) then
if ( (copy(mode,1,1) <> 't') AND (copy(mode,1,1) <> 'f') ) then bool:=false;
if (not bool) then
begin
writeln('3rd arg most be -t "<text>" or -f <filename>');
Application.Terminate;
exit;
end;
//------------------
//Get text/filename
text := ParamStr(4);
if (mode = 'f') then
if FileExists(text) then
text := LoadFileToString(text)
else
begin
writeln('File not found: '+text);
Application.Terminate;
exit;
end;
//Set wave format
// SpFileStream.Format.type_ := SAFT22kHz16BitMono;
SpFileStream.Format.type_ := SAFT44kHz16BitMono;
//Open wavefile
SpFileStream.Open(filename,SSFMCreateForWrite, False);
//Hook wavefile to speak output.
SpVoice1.AudioOutputStream := SpFileStream.DefaultInterface;
//Talk
//SVSFIsFilename
// if (mode = 'f') then
// SpVoice1.Speak(text, SVSFDefault or SVSFIsFilename)
// else
SpVoice1.Speak(text, SVSFDefault);
SpVoice1.WaitUntilDone(-1);
SpFileStream.Close;
Application.Terminate;
end;
procedure TMainForm.FormShow(Sender: TObject);
begin
Application.Terminate;
end;
end.

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@ -0,0 +1,12 @@
from sys import stdin, stdout
i = 0
while True:
data = stdin.read(2)
if not data:
break
if i%2 == 0:
stdout.write(data)
i+=1

@ -0,0 +1,30 @@
#include <stdio.h>
#define BUF_SIZE 16384
int main(int argc, char **argv)
{
size_t len, i;
char buf[BUF_SIZE];
char *pos;
/*
for (i=0; fread(buf, 1, 4, stdin) == 4; i++)
if (i%2 == 0 && fwrite(buf, 1, 2, stdout) != 2)
return 1;
*/
while (1) {
len = fread(buf, 1, BUF_SIZE, stdin);
pos = buf;
for (i = 0; i < len; pos+=4, i+=4)
if (fwrite(pos, 1, 2, stdout) != 2)
break;
if (len != BUF_SIZE || i != len)
break;
}
return 0;
}

@ -0,0 +1,11 @@
#!/bin/sh
[ $(dd if=$1 skip=0 bs=1 count=4 2>/dev/null) = "RIFF" ] && \
[ $(dd if=$1 skip=8 bs=1 count=4 2>/dev/null) = "WAVE" ] && \
[ "$((0x$(xxd -plain -s 0x14 -l 2 $1 | sed 's/\(..\)\(..\)/\2\1/')))" -eq 1 ] && \
echo valid || echo invalid
echo start of data: $((0x$(xxd -plain -s 0x10 -l 4 $1 | sed 's/\(..\)\(..\)\(..\)\(..\)/\4\3\2\1/')+28))
echo number of channels: $((0x$(xxd -plain -s 0x16 -l 2 $1 | sed 's/\(..\)\(..\)/\2\1/')))
echo sample rate: $((0x$(xxd -plain -s 0x18 -l 4 $1 | sed 's/\(..\)\(..\)\(..\)\(..\)/\4\3\2\1/')))
echo bits per sample: $((0x$(xxd -plain -s 0x22 -l 2 $1 | sed 's/\(..\)\(..\)/\2\1/')))
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