Hi there,

First, I wanted to thank you for the work you do on AudioKit, it's great to have a high quality and well maintained framework to work on audio 💯

The issue: I wanted to know if there's a way to achieve this with AudioKit 5: https://audiokit.io/examples/MicrophoneAnalysis/

I've tried:

let audioEngine = AudioKit.AudioEngine()
guard let node = audioEngine.input else { return nil }
try? audioEngine.start()
plot = AudioKitUI.NodeOutputPlot(node)

But it throws Error: Attempt to start engine with no output and doesn't seem to work.

Reading the AudioKit 5 Migration Guide I could get to this point but I really have no idea how to use AmplitudeTap or PitchTap:

let audioEngine = AudioKit.AudioEngine()
guard let node = audioEngine.input else { return nil }
let tracker = AudioKit.AmplitudeTap(node) // probably not correct?
audioEngine.output = tracker // nope
try? audioEngine.start()
plot = AudioKitUI.NodeOutputPlot(node)

Maybe this is not possible yet on AudioKit 5, no worries, but I'd love to know that so I can go with AudioKit 4 instead.

Thank you for your help ❤️

But .color does work, so I think the method updateColor(_:) can be marked as deprecated?

How can I do the attached image. Is it possible to have multi colour wave form, showing the highs, mids and low, just like the attached image.

As you've merged v5-develop into v-5main for AudioKit, can the dependency for this package now be changed to the main branch?

Thanks for the newly added AudioFileWaveform View.

I get a crash if I add very small audio files: Fatal error: Range requires lowerBound <= upperBound

My very small audio file has only a few samples, which is probably less than the default rmsWindowSize of 256.
So the crash happens in AudioHelpers.createRMSAnalysisArray, Line 86, because numberOfOutputArrays gets negative.

Here is the audio file:
44100 _verySmall.aif.zip

Also,
I can't seem to access the functions in AudioHelpers from my own code - that might be because they are not marked public?
That is also true for the AudioWaveform struct.

Thanks!

macOS Version(s) Used to Build

macOS 13 Ventura, macOS 12 Monterey

Xcode Version(s)

Xcode 14

Description

I'm working on an iOS app that uses NodeOutputView
Randomly I get this "Index Out of range" as you can see in the screen shot

Crash Logs, Screenshots or Other Attachments (if applicable)

Hi,
The following code used to compile and work a few months earlier (on XCode 12.5). Now, on a new mac (Monterrey and XCode 13.1) I get the following error. Any help. My AudioKit / AudioKitUI versions were set to 'main branch'.
"Cannot convert value of type 'NodeOutputView?' to expected argument type 'UIView'

   var audioMic_liveView2: NodeOutputView!
   audioMic_liveView2 = NodeOutputView(self.conductor_2.tappableNodeA)
    audioMic_liveView.addSubview(audioMic_liveView2)                      <-- shows the above error

Description

At the moment, attempting to use a AudioKitUI View, such as NodeOutputView, results in an issue when building:

According the the log, it mentions that views that utilize FloatPlot can not be used for VisionOS since MTKView and MTKViewDelegate do not support Vision OS:

Proposed Solution

Ideally an alternative way to use the FloatPane utility without relying on MTKView

Describe Alternatives You've Considered

N/A

Additional Context

No response

I'm quite new to AudioKit and Swift programming in general. It doesn't appear to be possible to change the size, color, and other properties of a KnobView - is this accurate? If not are there any examples of using a KnobView? I didn't see anything in the Cookbook.

Thanks!

How to get high, mid, low waveform by its self?

See https://developer.apple.com/documentation/swiftui/canvas

My machine beachballs for a few seconds when loading the cookbook example for MIDITrackView. After profiling, it seems this is due to it creating a CALayer for each note.

Would we have possibility in future to customize visualization of NodeOutputView?

There is one project build with AudioKitUI lib but on the older version. I want to have same waveform animation. But looks like with current version I can not do too much.

macOS Version(s) Used to Build

macOS 13 Ventura

Xcode Version(s)

Xcode 14

Description

Swift Test of Pull Request #82 failed:
AudioKitUI/AudioKitUI/Sources/AudioKitUI/Visualizations/SpectrogramFlatView/UIColor+intermediate.swift:4:8

error: no such module 'UIKit'
import UIKit

Needs some NSColor alternative to UIColor.

Crash Logs, Screenshots or Other Attachments (if applicable)

https://github.com/AudioKit/AudioKitUI/actions/runs/8328777809/job/22793681000?pr=82

It creates an AppleSequencer and reads files. Need to create a MIDITrackViewModel to store that.

Hi. just tried out the ADSRView and it appears to be of a fixed size (440px wide I believe). Am I missing something?

Attempting to build for XCode 13 Beta, theres a build error in MIDITrackView - same issue in 4 separate places. Line 106, 175, 190, 207 : cursorTime = .. compiler is unable to debug this line in reasonable time. Equation needs splitting up into smaller parts. I'll happily do this myself if I can contribute? thanks, Luke

macOS Version(s) Used to Build

macOS 13 Ventura

Xcode Version(s)

Xcode 14

Description

HI.
Thanks for this wonderful Package..
I am developing MIDI mixing applictions now.
When I clcik import button to fetch midi file, this midi file tracks has been displayed in MIDITrackView.
And then I click this button again to fetch other midi file, MIDITrackView displayes first imported midi file and second file at the same time..
But after then when I do above process again (but this time, I select first midi file), MIDITrackView displays only first midi file tracks as I expected..
What waht the reason??
Thanks for your support.

Crash Logs, Screenshots or Other Attachments (if applicable)

No response

macOS Version(s) Used to Build

macOS 13 Ventura

Xcode Version(s)

Xcode 14

Description

public func loadSequencerFile(fileURL: URL) {
        sequencer.loadMIDIFile(fromURL: fileURL)
        if sequencer.allTempoEvents.isNotEmpty {
            lastTempo = sequencer.allTempoEvents[0].1
        } else {
            lastTempo = sequencer.tempo
        }
        sequencer.setGlobalMIDIOutput(sampler.midiIn)
        do {
            try sampler.loadSoundFont("UprightPianoKW-20190703", preset: 0, bank: 0)
        } catch {
        }
    }

I replace the SoundFont with custom .sf2 file, and the url is not nil. But in the demo MIDITrack.swift still play the default beeper sound. How can I load custom .sf2 file？

Crash Logs, Screenshots or Other Attachments (if applicable)

No response

I couldn't find any useful previews, making it hard to develop in AudioKitUI without using the Cookbook app.

Correct me if this is an error but I cannot get them to be transparent.

macOS Version(s) Used to Build

macOS 13 Ventura

Xcode Version(s)

Xcode 14

Description

Hi, pretty new to all this (using for a uni project) but pretty sure I have identified an error in the FFTView struct.

In FFTView.swift navigate to the body view, and there is an if statement:
if let amplitude = fft.amplitudes[$0]{
In the amplitude bar call in the if function(line 143), I believe it should pass:
backgroundColor: backgroundColor)

It passes it in the else statement so it should be passed in the if statement too, correct?

I would fork and stuff, but this is my first time properly using version control and I don't want to mess with stuff and delete my code before I know what I'm doing, sorry!

Crash Logs, Screenshots or Other Attachments (if applicable)

With original code:

With amended code:

I believe .animation now needs to be more specific, by adding a value parameter or by changing it to .withAnimation.

I'm not sure if this is the right way, and I haven't tested it but the following suppresses the warning in FFTView.swift, for example:

struct AmplitudeBar: View {
    var amplitude: Double
    var linearGradient: LinearGradient
    var paddingFraction: CGFloat = 0.2
    var includeCaps: Bool = true
    @State private var offset: CGFloat = 0
    @State private var geoSize: CGFloat = 0

    var body: some View {
        GeometryReader { geometry in
            ZStack(alignment: .bottom) {
                // Colored rectangle in back of ZStack
                Rectangle()
                    .fill(self.linearGradient)

                // Dynamic black mask padded from bottom in relation to the amplitude
                Rectangle()
                    .fill(Color.black)
                    .mask(Rectangle().padding(.bottom, geoSize))
                    .onAppear {
                        withAnimation(.easeOut(duration: 0.15)) { self.geoSize = geometry.size.height * CGFloat(amplitude) }
                    }
//                    .animation(.easeOut(duration: 0.15))

                // White bar with slower animation for floating effect
                if includeCaps {
                    addCap(width: geometry.size.width, height: geometry.size.height)
                }
            }
            .padding(geometry.size.width * paddingFraction / 2)
            .border(Color.black, width: geometry.size.width * paddingFraction / 2)
        }
    }

    // Creates the Cap View - seperate method allows variable definitions inside a GeometryReader
    func addCap(width: CGFloat, height: CGFloat) -> some View {
        let padding = width * paddingFraction / 2
        let capHeight = height * 0.005
        let capDisplacement = height * 0.02
        let capOffset = -height * CGFloat(amplitude) - capDisplacement - padding * 2
        let capMaxOffset = -height + capHeight + padding * 2

        return Rectangle()
            .fill(Color.white)
            .frame(height: capHeight)
            .offset(x: 0.0, y: offset) // prevents offset from pushing cap outside of it's frame
            .onAppear {
                withAnimation(.easeOut(duration: 0.6)) { self.offset = -height > capOffset - capHeight ? capMaxOffset : capOffset }
            }
//            .animation(.easeOut(duration: 0.6))
    }
}