Freedom of expression. IRig Keys is the first ultra-slim and highly portable universal MIDI controller keyboard for iPhone, iPad, iPod touch, Android and Mac/PC. IRig Keys connects directly to your iOS device via the included Lightning connector, to your Android device via the included OTG to Micro-USB cable and to your Mac/PC via the included USB cable. If you are installing Pro Tools 7.4.2 for Mac OS X 10.5.3, you should use the Digidesign CoreAudio included with your Pro Tools installation, not the standalone version. This download is for owners.

Core Midi Mac Download

download rtpMIDI
rtpMIDI tutorial

Network MIDI driver for Windows 7 up to Windows 10, 32 and 64 bit. Compatible to the network MIDI included in Apple OS-X and iOS

The rtpMIDI-driver is a virtual MIDI-driver which allows DAW-applications to communicate via network with other computers. With this driver you don‘t need to connect long MIDI-cables between your music-workstations. Compared to other MIDI over LAN or IP-MIDI solutions, this driver is based on an open standard.

As the driver has been designed to be compatible to the network-MIDI included in every Mac since OS X 10.4 and every iPhone/iPad since iOS 4.2, you can also connect to Macs or iPhone / iPad apps that have been designed to use the Core-MIDI framework.

The configuration is implemented to closely resemble the network-MIDI-configuration in OS X‘s Audio/MIDI-setup. So if you are already familiar with network-MIDI on the Mac, you will find your way easily. If not, I have provided a step-by-step tutorial on how to configure the virtual ports and the connections.

The driver has been developed over a pretty long timeframe and is updated quite regularly to even further improve the experience for the user. If you are interested in some background about the development, take a look at the rtpMIDI-history.

There is even hardware compatible to this driver like the Kiss-Box and a multitude of iConnectivity interfaces. With those devices, you can connect standard-MIDI-based hardware like synthesizers or controllers to a Windows PC just using the network cable as well.

For all those people interested in creating music-applications for Android, you might take a look at the nmj-project. The guys over there have created a java-library which also implements RTP-MIDI compatible to Apple & rtpMIDI.

Core Midi For Mac Keyboard

If you are a developer of a Core-MIDI compliant iOS-app for the store, and you are looking to let your customers also connect easily with Windows PCs, just drop me a short mail and we can talk about your support of this project in form of licencing or donations…

Below you find an example of some manufacturers using rtpMIDI for network MIDI communication that are supporting the continued development of this driver:

★ Harman Studer with their Vista mixing consoles
★ Kissbox with their network-MIDI interface hardware
★ iConnectivity with their network-MIDI interface hardware

Core Audio is the digital audio infrastructure of iOS and OS X. It includes a set of software frameworks designed to handle the audio needs in your applications. Read this chapter to learn what you can do with Core Audio.

Core Audio in iOS and OS X

Core Audio is tightly integrated into iOS and OS X for high performance and low latency.

In OS X, the majority of Core Audio services are layered on top of the Hardware Abstraction Layer (HAL) as shown in Figure 1-1. Audio signals pass to and from hardware through the HAL. You can access the HAL using Audio Hardware Services in the Core Audio framework when you require real-time audio. The Core MIDI (Musical Instrument Digital Interface) framework provides similar interfaces for working with MIDI data and devices.

You find Core Audio application-level services in the Audio Toolbox and Audio Unit frameworks.

Use Audio Queue Services to record, play back, pause, loop, and synchronize audio.
Use Audio File, Converter, and Codec Services to read and write from disk and to perform audio data format transformations. In OS X you can also create custom codecs.
Use Audio Unit Services and Audio Processing Graph Services (represented in the figure as “Audio units”) to host audio units (audio plug-ins) in your application. In OS X you can also create custom audio units to use in your application or to provide for use in other applications.
Use Music Sequencing Services to play MIDI-based control and music data.
Use Core Audio Clock Services for audio and MIDI synchronization and time format management.
Use System Sound Services (represented in the figure as “System sounds”) to play system sounds and user-interface sound effects.

Core Audio in iOS is optimized for the computing resources available in a battery-powered mobile platform. There is no API for services that must be managed very tightly by the operating system—specifically, the HAL and the I/O Kit. However, there are additional services in iOS not present in OS X. For example, Audio Session Services lets you manage the audio behavior of your application in the context of a device that functions as a mobile telephone and an iPod. Figure 1-2 provides a high-level view of the audio architecture in iOS.

A Little About Digital Audio and Linear PCM

Most Core Audio services use and manipulate audio in linear pulse-code-modulated (linear PCM) format, the most common uncompressed digital audio data format. Digital audio recording creates PCM data by measuring an analog (real world) audio signal’s magnitude at regular intervals (the sampling rate) and converting each sample to a numerical value. Standard compact disc (CD) audio uses a sampling rate of 44.1 kHz, with a 16-bit integer describing each sample—constituting the resolution or bit depth.

A sample is single numerical value for a single channel.
A frame is a collection of time-coincident samples. For instance, a stereo sound file has two samples per frame, one for the left channel and one for the right channel.
A packet is a collection of one or more contiguous frames. In linear PCM audio, a packet is always a single frame. In compressed formats, it is typically more. A packet defines the smallest meaningful set of frames for a given audio data format.

In linear PCM audio, a sample value varies linearly with the amplitude of the original signal that it represents. For example, the 16-bit integer samples in standard CD audio allow 65,536 possible values between silence and maximum level. The difference in amplitude from one digital value to the next is always the same.

Core Audio data structures, declared in the CoreAudioTypes.h header file, can describe linear PCM at any sample rate and bit depth. Audio Data Formats goes into more detail on this topic.

In OS X, Core Audio expects audio data to be in native-endian, 32-bit floating-point, linear PCM format. You can use Audio Converter Services to translate audio data between different linear PCM variants. You also use these converters to translate between linear PCM and compressed audio formats such as MP3 and Apple Lossless. Core Audio in OS X supplies codecs to translate most common digital audio formats (though it does not supply an encoder for converting to MP3).

iOS uses integer and fixed-point audio data. The result is faster calculations and less battery drain when processing audio. iOS provides a Converter audio unit and includes the interfaces from Audio Converter Services. For details on the so-called canonical audio data formats for iOS and OS X, see Canonical Audio Data Formats.

In iOS and OS X, Core Audio supports most common file formats for storing and playing audio data, as described in iPhone Audio File Formats and Supported Audio File and Data Formats in OS X.

Core Midi Mac Download

Core Midi For Mac Keyboard

Core Audio in iOS and OS X

A Little About Digital Audio and Linear PCM

Audio Units