mad-dev January 2011

mad-dev@lists.mars.org

4 participants
4 discussions

madplay play back error on start and end of file
by Krzysztof Stankiewicz 19 Jan '11

19 Jan '11

Hi, sorry its my first posting... hoping for some clues.. When I play back i get some noise at the beginning and end of the mp3... Iim using alsa soundcard on arm-linux. but cant compile madplay --with-alsa because libasound is not found, where is that? compiling without that flag all works except the noise at beginning and end of playback, im guessing madplay is outputing a non-raw format to a soundcard thats expecting raw?

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Enhancing madplay to speed up audio books and podcasts
by Bill Cox 10 Jan '11

10 Jan '11

I would like to enhance an audio book player called "daisy-player" to allow the user to control the speed. It uses madplay for all of it's sound output. I wrote a simple package called "sonic" that speeds up speech with low distortion. It's in plain ANSI C, and works well on ARM CPUs with no FPU (tested on Android). Since sonic is not yet included in Debian, I recommend just adding two files to the madplay source: sonic.c and sonic.h. I would be happy to make the initial edits to incorporate sonic speed up in the output stream processing of madplay. Would such an enhancement be of interest? Thanks, Bill

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Speeding up audio books and podcasts
by Bill Cox 09 Jan '11

09 Jan '11

Hi, Jos. Thanks for writing daisy-player. It looks quite good to me. I find that a lot of vision impaired people like to speed up podcasts and audio books. This is a feature I would be happy to help add to daisy-player. I wrote a simple C library called sonic which can speed up or slow down speech with fairly low distortion. It's best attribute is low distortion at high speed up factors of 2X or more. It looks like I need to modify madplay, to enable speeding up of speech as an option, which should not be too hard. I'll post to their dev list to see if I the author is interested in including the capability. Bill

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compile MAD on snowleopard
by jschmidt＠folkwang-hochschule.de 04 Jan '11

04 Jan '11

Hi everybody, I would like to include MAD in an xcode project and I used the very simple minimad.c file. I also included the headers from the project trunk. But then I get an error: "_mad_decoder_finish", referenced from: _main in main.o during the linking. So I realized that I have to build the mad-lib first (right?) and I started the ./configure from console which went well but the make throws another error: (sed -e '1s|.*|/*|' -e '1b' -e '$s|.*| */|' -e '$b' \ -e 's/^.*/ *&/' ./COPYRIGHT; echo; \ echo "# ifdef __cplusplus"; \ echo 'extern "C" {'; \ echo "# endif"; echo; \ if [ ".-DFPM_INTEL" != "." ]; then \ echo ".-DFPM_INTEL" | sed -e 's|^\.-D|# define |'; echo; \ fi; \ sed -ne 's/^# *define *$HAVE_.*_ASM$.*/# define \1/p' \ config.h; echo; \ sed -ne 's/^# *define *OPT_$SPEED\|ACCURACY$.*/# define OPT_\1/p' \ config.h; echo; \ sed -ne 's/^# *define *$SIZEOF_.*$/# define \1/p' \ config.h; echo; \ for header in version.h fixed.h bit.h timer.h stream.h frame.h synth.h decoder.h; do \ echo; \ sed -n -f ./mad.h.sed ./$header; \ done; echo; \ echo "# ifdef __cplusplus"; \ echo '}'; \ echo "# endif") >mad.h make all-recursive if /bin/sh ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_INTEL -DASO_ZEROCHECK -Wall -march=i486 -g -O -fforce-mem -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT version.lo -MD -MP -MF ".deps/version.Tpo" -c -o version.lo version.c; \ then mv -f ".deps/version.Tpo" ".deps/version.Plo"; else rm -f ".deps/version.Tpo"; exit 1; fi mkdir .libs gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_INTEL -DASO_ZEROCHECK -Wall -march=i486 -g -O -fforce-mem -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT version.lo -MD -MP -MF .deps/version.Tpo -c version.c -fno-common -DPIC -o .libs/version.o cc1: warning: -f[no-]force-mem is nop and option will be removed in 4.3 version.c:1: error: CPU you selected does not support x86-64 instruction set version.c:1: error: CPU you selected does not support x86-64 instruction set make[2]: *** [version.lo] Error 1 make[1]: *** [all-recursive] Error 1 make: *** [all] Error 2 This looks like the wrong architecture.. but I am not so familiar with the options in 'make'. Can anybody confirm the first case and does anyone have an idea for the make-problem? Thanks a lot in advance! Best Johannes

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mad-dev January 2011