vavi-sound

Provides old school Japanese cell phone sounds library as javax.sound(.midi) SPI
includes many ADPCM codecs and the SSRC sampling rate converter.

_{[1] implemented in another library
[2] wav file readable}

• https://jitpack.io/#umjammer/vavi-sound

• vavi.sound.sampled.spi.ssrc ... ssrc sampling rate conversion provider on/off, default false

• MFi (.mld) ... PlayMFi
• SMAF (.mmf) ... PlaySMAF

A. yes you can, follow those steps

• create a separated jar (ssrc.jar) file including ssrc classes. (never include those .class files into your application jar file)
  • vavi/sound/pcm/resampling/ssrc/SSRC.class
  • vavi/util/SplitRadixFft.class
  • vavi/util/I0Bessel.class
• ⚠️ caution:
  • your application complies with the LGPL. customers have a right to reverse engineering your application.
  • if you bundle ssrc.jar with a distribution, you must offer a way to get ssrc source code.
• see also
  • https://opensource.org/licenses/LGPL-2.1
  • http://www.gnu.org/licenses/lgpl-java.en.html

• [github actions] workflow on ubuntu java8 cannot deal line PCM_SIGNED 8000.0 Hz, 16 bit, mono, 2 bytes/frame, little-endian
• [midi volume] avoiding noise, SoundUtil#volume should be called before Sequencer#setSequence

• https://github.com/shibatch/SSRC
• adpcm
  • https://github.com/SatyrDiamond/adpcm
  • https://segaretro.org/Yamaha_Super_Intelligent_Sound_Processor (yamaha aica adpcm)
  • https://github.com/A-SunsetMkt-Forks/vgmstream/blob/master/src/coding (ps2 etc.)
  • psx
    • https://archive.org/details/adpcmplayerv1.44h (ps2 player)
    • http://zarala.g2.xrea.com/soft/analyse/ps2_adpcm.txt
• Beatnik RMF https://github.com/heyigor/miniBAE
• FITOM https://github.com/madscient/FITOMApp (midi to opl series)
• RTTTL (Ringing Tones text transfer language)
• smaf
  • https://murachue.sytes.net/web/softlist.cgi?mode=desc&title=mmftool
  • https://github.com/mmontag/mmfplay (w/ ym chips)
  • https://funyamora.hatenadiary.org/entry/20080225/1203889006 🇯🇵 (.spf SMAF/Phase)
  • https://github.com/logue/smfplayer.js
  • https://github.com/shirajira/OpenMF
  • https://github.com/Pusungwi/mmf_parser
• mfi
  • https://github.com/starg2/timidity41/blob/dev41/timidity/mfi.c
  • https://github.com/logue/smfplayer.js/blob/master/src/mld.js
  • https://github.com/SquirrelJME/SquirrelJME/tree/trunk/modules/vendor-api-keitaiwiki-music/src/main/java/com/keitaiwiki/music
  • https://github.com/GrenderG/openDoJa (fuetrek)
  • https://github.com/TASEmulators/freej2me-plus/blob/devel/src/javax/microedition/media/decoders/MLDDecoder.java

• use Receiver and sysex instead of MetaEventListener
• ssrc: use nio pipe for 1st pass
  • on macos m2 ultra 1st pass is in a blink of an eye
• ima, ms adpcm: wav reader
  • tritonus:tritonus-remaining:org.tritonus.sampled.file.WaveAudioFileReader
• use service provider for mfi, smaf sequencer
• service loader instead of vavi.properties
• midi -> smaf
• https://github.com/but80/smaf825 (patch dump) -> https://github.com/umjammer/vavi-sound-ma
• psx adpcm spi
• sshd (.ss2) spi
• adpcm playback timing precisely
• smaf, mfi midi synthesizer are really needed? just receiver seems to be ok
  • those are needed when eliminating audio engine source data line
• eliminate *MessageStore -> w/ data sysex
• AudioDataChunk seems Δ is 0, there is the case that those pronounce at same timing ?
• remaining japanese, world ringtone format

_{image designed by @umjammer, drawn by nano banana}