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View AVAudioPlayerFromSampleBuffer.Swift
//
// Example of Using AVAudioPlayer
// to play a buffer of (synthesized) audio samples from memory
// by converting a [Float] buffer into an in-memory WAV file
//
// Copyright © 2019 Ronald H Nicholson Jr. All rights reserved.
// (re)Distribution permitted under the 3-clause New BSD license.
//
import Foundation
@hotpaw2
hotpaw2 / udp_receive.swift
Last active Feb 24, 2018 — forked from NeoTeo/UDPSendReceive.swift
A minimal implementation of a Posix UDP server in Swift.
View udp_receive.swift
//
// receive packets via UPD in Swift
// Original: https://gist.github.com/NeoTeo/b6195efb779d925fd7b8
// server only converted to Swift 4 2018-02-24 by rhn@nicholson.com
//
// swiftc udp_receive.swift -o udp_receive
//
import Foundation
View fft1.bas
rem Some tutorial DSP subroutines for Chipmunk Basic
rem
rem genstab() Generates a sine table for use by the fft() subroutine
rem fft() Implementation of a common in-place DIT FFT algorithm
rem *** genstab(m) - a subroutine to generate sine table of length 2^m ***
rem *** must be called before calling fft() for
rem the first time, and if the length 2^m changes
sub genstab(m)
View sensortag.count.2.bas
100 rem SensorTag button press counter
102 rem This program will connect to and count TI SensorTag button presses.
104 rem It can count even in the background or with the iPhone display off.
106 rem Select a Sensor in the List and wait for connection success.
108 rem Tap the display to exit.
110 rem for HotPaw Basic 1.7.7 , rhn@hotpaw.com , 2017-12-08
112 rem
120 fn btle.init()
125 print "Initializing BLE ..."
130 fn sleep(5)
View ble.perip.button.1.bas
100 rem BLE peripheral button service emulation
102 rem for HotPaw Basic 1.7.7 , 2017-12 , by rhn@nicholson.com
104 rem Provides the same button service as a TI SensorTag
106 rem Tap on the iPhone display to send a BLE notification
108 rem Enter any character to exit
110 rem
120 fn btle.init()
130 print "Initializing ..."
140 fn sleep(1) : fn sleep(1)
160 fn btle.name(1,"HotPaw Button Test")
@hotpaw2
hotpaw2 / nsurl.dtask.test1.swift
Created May 6, 2017
test of command-line Swift for an NSURLSession dataTask
View nsurl.dtask.test1.swift
//
// command-line Swift test of an NSURLSession dataTask
// 2017-May-06 rhn@nicholson.com (hotpaw)
//
// compile and run using:
//
// swiftc nsurl.dtask.test1.swift -o mytest1
// ./mytest1
//
View MyMetalWaterfall.swift
//
// MyMetalWaterfall.swift
// version 0.1.105 (updated for Swift 5)
//
// Demonstrates using a MetalKit compute shader to render a live waterfall RGB bitmap
// into a UIView
//
// This is a single file iOS app
//
// It includes AppDelegate for a minimal demonstration app
View MyURLStreamTask.swift
// MyURLStreamTask.swift
// Demonstrates using an NSURLSessionStreamTask to implement a bidirectional TCP socket connection
//
// by rhn@nicholson.com 2017-03-07
// distribution: BSD 2-clause
//
import Foundation
class MyURLStreamTask {
@hotpaw2
hotpaw2 / RecordAudio.swift
Last active Dec 27, 2019
Swift Audio Recording class. Reads buffers of input samples from the microphone using the iOS RemoteIO Audio Unit API
View RecordAudio.swift
//
// RecordAudio.swift
//
// This is a Swift class (updated for Swift 5)
// that uses the iOS RemoteIO Audio Unit
// to record audio input samples,
// (should be instantiated as a singleton object.)
//
// Created by Ronald Nicholson on 10/21/16.
// Copyright © 2017,2019 HotPaw Productions. All rights reserved.
@hotpaw2
hotpaw2 / ToneOutputUnit.swift
Last active Dec 28, 2019
Swift 3 Audio class that can play a simple tone on an iOS device
View ToneOutputUnit.swift
//
// ToneOutputUnit.swift
//
// This is a Swift 3 class (which should be instantiated as a singleton object)
// that can play a single tone of arbitrary tone and frequency on iOS devices
// using run-time sinewave synthesis and the Audio Unit v3 API with RemoteIO.
//
// Created by Ronald Nicholson rhn@nicholson.com on 2/20/2016.
// revised 2016-Sep-08 for Swift 3
// http://www.nicholson.com/rhn/
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