MIDITrail vs Audio Editor & Tool

MIDITrail is a MIDI player which provides 3D visualization of MIDI data sets. You can enjoy not only listening but also viewing. MIDITrail supports Standard MIDI File (format 0/1), CoreMIDI, and multiple MIDI ports. MIDITrail is available for Windows, macOS and iOS. Optional feature: You can enjoy the VR(virtual reality) experience using cheap VR glasses for smartphones and the game controller for iPhone. Requirements: iOS 12.0 or later (1) Preparing MIDI files You have to transfer MIDI files to your iOS device from Mac or PC. Connect your iOS device to Mac or PC, and launch iTunes. Then you can transfer MIDI files using 'File Sharing'. Or you can add MIDI files to MIDITrail using Files App of iOS. (2) Preparing Sound module You can use sound module which supports Core MIDI. And you can use internal wavetable synthesizer. There are three ways as shown below: The first way is to use the internal wavetable synthesizer. You have to transfer the wavetable file (DLS/SF2) to your iOS device in advance. The second way is to use Synth App which supports 'Virtual MIDI Port' and 'Background Mode'. (e.g., KQ Sampei, bs-16i, Sound Canvas for iOS) The third way is to connect MIDI interface device and external sound module. (e.g., CME U2MIDI Pro)

Audio Editor & Tool is an audio editor app for iPhone and iPad. First, import an audio file from Music or Files App. Cut, trim, insert silence, insert a file, separate to vocal and accompaniment, add effects. Then, export the file. Notes & Tips: [Import File] - Can import only non-DRM files - An imported file is converted to PCM/44.1kHz/32bit float - Supports Mono/Stereo audio - Available audio formats - aifc - aiff - caf - flac - m4a - mp3 - wav [Edit] - Edit a single waveform - Cut/Trim for selected time - Insert a silence at the beginning, the end, or arbitrary time for max 30 seconds - Insert a file at the beginning, the end, or arbitrary time - Source Separation - Separate source to vocal and accompaniment - Do not expect to be perfect - Separation takes some time, but should be performant since this app uses CoreML - If you hear clipping, inserting a second/seconds of silence  at the beginning and the end might improve the separation - 2 tracks source separation might work as a noise reduction; separating to voice and other sounds (i.e. background music, noise, ... etc.) - 4, 5 tracks source separation ML models are available to download - 4 tracks separation separates a source to vocal, bass, drums and other - 5 tracks separation separates a source to vocal, bass, drums, piano and other - 5 tracks source separation is available to iOS 14 or above - Mix songs - Select two or more songs and adjust gain level of songs to mix - Mixes songs from the beginning to the end - Simply mixes songs but could be useful for some situation [FX] - Support AUv3 effects extension - Select from Effect → + → Should appear installed AUv3 in the list - Available effects - AUBandpassFilter - AUDynamicsProcessor - AUDelay - AUDistortion - AUHighPassFilter - AUHighShelfFilter - AUPeakLimiter - AULowPassFilter - AULowShelfFilter - AUNewPitch - AUParametricEQ - AUReverb2 - AUSampleDelay - AUPitch - AUNewTimePitch - AUVarispeed [Export] - Available audio formats - aifc - aiff - flac - m4a - wav - Mono/Stereo channels - Sample Rate - 8 kHz - 12 kHz - 16 kHz - 20.5k Hz - 24 kHz - 44.1 kHz - 48 kHz - Exported files are available from Files App also - If Audio Editor is not showing in Files App, try restart the device; restarting might fix If you have found a reproducible bug or suggestions, please let me know via App Support → Scroll down to Contact. Do my best & thanks! If you like the app, leave a review. Your feedback is valuable to me! Hope you enjoy!