How can the answer be improved? Oct 5, 2018 - The touchpad has revolutionized the way people use their devices. But too often, Mac users don't take advantage of this powerful input.
You can use your Mac to record late-night jam sessions, snatch work-in-progress tunes hummed into a microphone, turn the MIDI data transmitted by a keyboard or drum pad into something worth listening to, and capture LPs and convert them into samples. But to do any of these things, you’ll need to carefully consider the type of input device that will best suit your needs and help you get high-quality sounds into your Mac.
Microphones
For musical matters, a Mac’s built-in microphone is a terrible choice. It offers too little fidelity and picks up far too much room noise. Headset mics aren’t much better, since they’re not very versatile (try using one to record a guitar), and the headset microphones that people often use for Skype and iChat calls or podcasting don’t provide broad enough fidelity. When you need to record a voice or instrument, a real microphone is the only way to go. You have a couple of options in this regard. The most convenient is a microphone that plugs directly into your Mac’s USB port. In most cases, these microphones don’t require any additional software to work.
Using a USB microphone was once a compromise—there weren’t a lot of them around, and those that were available didn’t offer the kind of quality professionals demand. That has changed.
Today you have your choice of a variety of high-quality USB microphones from such manufacturers as Audio-Technica, Blue Microphones, Marshall Electronics, Rode Microphones, and Samson. They range in price from around $100 to $300 (I reviewed a handful of these USB mics in July 2008).
Audio quality is, of course, your key concern, but there are other features to consider as well. For example, you’ll avoid some cable clutter if you choose a microphone with a headphone port that lets you monitor not only the sound coming into the mic, but also your Mac’s audio (useful when you’re overdubbing a part, for example). Marshall Electronics’ USB.009 ($300 online) and Samson’s G-Track (; $130 online) both offer headphone ports and provide a way to monitor sound from the mic as well as from the Mac it’s plugged into.
Having a control knob to adjust a USB microphone’s input volume, or gain, is helpful in that it’s less hassle than having to dig down into the Mac’s system preferences or an application’s settings. Rode’s Podcaster (; $230 online) and the previously mentioned USB.009 and G-Track allow you to control input gain.
But there are times when USB microphones and OS X 10.5 don’t cooperate. When using a USB microphone, you may occasionally encounter bursts of static. To avoid this issue, try the following solution.
Launch Audio MIDI Setup (/Applications/Utilities). From the Audio menu, choose Open Aggregate Device Editor. In the sheet that appears, click on the plus-sign (+) button to add an aggregate device. In the Structure area below, enable the Use option next to the driver used by the USB microphone (USB Audio CODEC, for example). Enable the Clock option next to that device and click on Done. When you want to use that microphone, choose Aggregate Device as the input source—either within an application or from the Sound preference pane’s Input tab.
Audio Interfaces
Alternatively, you can use a microphone with an XLR connector that plugs into a USB or FireWire interface. These audio interfaces, made by companies including M-Audio, Mark of the Unicorn (MOTU), Digidesign, and Edirol, feature at least one audio input and, in some cases, MIDI in and out ports as well.
Audio interfaces generally require a separate software driver. Some include an application or preference pane for controlling the functions of the interface. For example, M-Audio’s Fast Track Ultra eight-port USB 2.0 interface ($350 online) requires you to open its preference pane within OS X’s System Preferences to control the device’s gain, pan, and output. I can control my older MOTU 828mkII audio interface either directly on the device or on the Mac through the company’s CueMix DSP application.
The advantage of these multiport interfaces is that you can use them to record multiple channels at once—a band full of instruments or even four people participating in a podcast’s roundtable discussion (see our podcasting guide for more info). And recording multiple inputs at the same time doesn’t require a high-end audio application—Apple’s GarageBand will do the trick.
To do so, launch GarageBand and open its Preferences menu. Click on the Audio/MIDI tab and choose the audio interface in the Audio Input pop-up menu (and in the audio Output pop-up menu as well if you want to monitor audio from the interface). There’s no need to configure MIDI input separately. GarageBand will automatically detect any devices connected to your Mac that bear MIDI inputs.
Close GarageBand’s preferences and choose Track: New Basic Track to create a new hardware instrument track. Continue adding tracks until you get as many empty ones as you need. Select a track and choose Track: Show Track Info. In the Info panel that appears, choose your first input from the Input Source pop-up menu—Stereo 1/2 (MOTU 828mk2), for example. Continue selecting other tracks and choosing appropriate inputs for them. When you’re ready to record, just click on the red icon next to each track to enable recording, and then click on the master Record button at the bottom of the window. GarageBand will record each record-enabled track separately.
Microphone Interfaces
Not everyone needs a large audio interface. Some people may object to their bulk and the expense of buying one, or may find that they need just a single microphone input. A more portable option is a USB adapter that plugs directly into a microphone via an XLR connector. Soundtech offers the LightSnake Microphone to USB Cable ($40 online), a 10-foot cable featuring a female XLR connector on one end and a USB connector on the other. With this cable you can plug an XLR microphone directly into your Mac and record—no additional software required.
Regrettably, the LightSnake cable doesn’t provide phantom power—the current some microphones require to operate. If you need phantom power, however, there are other options. CEntrance’s MicPort Pro ($150 online) is a 24-bit, 96kHz USB mic preamp that provides 48V phantom power. Blue Microphones’ Icicle ($60 online) costs about half as much, but offers 16-bit, 44.1kHz audio only.
Off the Record
Those interested in pulling samples from LPs or archiving their precious record collections need to find ways to move audio from turntable to Mac, and turntables present a unique problem. Unlike other audio sources, they use a special kind of filtering—called an RIAA Equalization Curve—that requires the turntable to play through a device (a receiver or preamplifier, for example) designed to deal with that filtering. There are a few options for recording music from turntables.
The least expensive is to locate an auxiliary output on a stereo receiver plugged into the turntable, and run a stereo RCA-to-mini-plug adapter cable between the receiver and the Mac’s audio input port. Choose that input in the Sound preference pane and capture the turntable’s output with any audio editor (including GarageBand).
Another option is Griffin Technology’s $50 iMic USB Audio Interface. Although you can use the iMic with just about any audio source (a tape deck or microphone, for example), it has a special talent for recording directly from turntables, as the Mac software included with it—Final Vinyl—is smart about the RIAA Equalization Curve.
Finally, you can eschew go-between boxes altogether by purchasing a USB turntable. These turntables are offered by Audio Technica, Ion Audio, Sony, and Numark at prices ranging from less than $100 to $300-plus.
[Senior Editor Christopher Breen is a musician and the host of the Macworld Podcast.]
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Is it possible to use the native keyboard on one Mac, to control the keyboard input of another Apple device, especially another Mac?
And so doing, without having to completely redirect the input device, i.e. disconnecting/connecting a Bluetooth keyboard to switch it between devices.
In my setup, I have a MacBook Pro and an iMac. Ideally, on the MBP, I would like to press a keyboard command or an GUI icon to connect the built-in keyboard as input for the iMac.
Note: Screen sharing is not a viable answer for this question.
Winterflags
WinterflagsWinterflags
6 Answers
Any of these three apps turn your Mac into a Bluetooth keyboard, and should accomplish what you need:
emalloveemallove
1Keyboard is an OS X app that allows a Macintosh keyboard to type on another Mac, iOS devices like iPhone and iPad, Apple TV, PS3 and Android.
I followed the pairing instructions, and while it didn't work the first few tries, it does now. Once I got it up and running, it has worked just fine. Copying, Pasting, keyboard shortcuts and Media keys (Volume, Playback) are supported.
You can set keyboard commands to connect to different devices. I use Shift + ⌘ + > to connect to my iMac, Shift + Ctrl + > to connect to my iPhone, Shift + Alt + > to connect to my iPad.
Edit 2017-09-09: 1Keyboard unfortunately now does keyboard layout mapping wrong for non-English languages. Buttons are in the wrong places and some letters may not work. I have reached out to the developer but with no response, not sure if the application is actively maintained. I'm assuming the application still works fine for an English keyboard layout.
WinterflagsWinterflags
I am not sure about its compatibility with El Capitan but Teleport will let you do exactly what you want. I used it for years to connect one keyboard and mouse between 3 Macs, but have not used it in awhile.
Dave NelsonDave Nelson
Try Synergy, a software KVM: https://symless.com/synergy
This allows you to simply move your mouse pointer to the iMac's screen to control it. Move your mouse back to the MBP and now you're controlling it. You can also do useful things like share clipboards between the machines.
Gary CokerGary Coker
Supposedly this open source project lets you do it in some way, though I haven't tried it:
Brad ParksBrad Parks
Why don't you just use screen sharing? When connected to it you will be able to use your trackpad and keyboard with the other Mac.
aidanjporteraidanjporter