Example
This is a basic example how you can apply the functions. We’ll use the midifile included in the package:
library(raudiomate)
midifile <- system.file("extdata", "test_midi_file.mid", package = "pyramidi")
audiofile <- "test.wav"
mp3file <- "test.mp3"Synthesize a midi file
synthesize_midi(midifile, audiofile, verbose = TRUE)
#> FluidSynth runtime version 2.1.1
#> Copyright (C) 2000-2020 Peter Hanappe and others.
#> Distributed under the LGPL license.
#> SoundFont(R) is a registered trademark of E-mu Systems, Inc.
#>
#> Rendering audio to file 'test.wav'..Convert wav to mp3
convert_to_mp3(audiofile, verbose = TRUE)
#> ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
#> built with gcc 9 (Ubuntu 9.3.0-10ubuntu2)
#> configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
#> WARNING: library configuration mismatch
#> avcodec configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared --enable-version3 --disable-doc --disable-programs --enable-libaribb24 --enable-liblensfun --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libtesseract --enable-libvo_amrwbenc
#> libavutil 56. 31.100 / 56. 31.100
#> libavcodec 58. 54.100 / 58. 54.100
#> libavformat 58. 29.100 / 58. 29.100
#> libavdevice 58. 8.100 / 58. 8.100
#> libavfilter 7. 57.100 / 7. 57.100
#> libavresample 4. 0. 0 / 4. 0. 0
#> libswscale 5. 5.100 / 5. 5.100
#> libswresample 3. 5.100 / 3. 5.100
#> libpostproc 55. 5.100 / 55. 5.100
#> Guessed Channel Layout for Input Stream #0.0 : stereo
#> Input #0, wav, from 'test.wav':
#> Duration: 00:00:10.67, bitrate: 1411 kb/s
#> Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
#> Stream mapping:
#> Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame))
#> Press [q] to stop, [?] for help
#> Output #0, mp3, to 'test.mp3':
#> Metadata:
#> TSSE : Lavf58.29.100
#> Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s16p
#> Metadata:
#> encoder : Lavc58.54.100 libmp3lame
#> size= 168kB time=00:00:10.68 bitrate= 128.5kbits/s speed=34.6x
#> video:0kB audio:167kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.147640%
#> generated test.mp3