Device Toolbar

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The Device Toolbar provides an easy way to select the combination of interface host and sound device to be used for playback and recording, without having to open the Devices Preferences. This toolbar may be resized.
The Device Toolbar

Audio Host

The Audio Host Image

Selects the particular interface with which Audacity communicates with your chosen playback and recording devices. On Windows the choice is between MME (default) or Windows DirectSound and on Linux, between ALSA (default) or OSS. On OS X, Core Audio is used. Generally you will want to use the default. On Windows XP or earlier and a recent computer, DirectSound should produce lower latency.

The Input Image Output Device

image of Windows 7 device toolbar
Choose the hardware device in or attached to your computer that you want to use for playback.

The Record Image Input Device

File:DeviceRecordingWin7Alone.png
Choose the hardware device in or attached to your computer that you want to use for recording.
Audacity must use the same interface host (for example, MME or DirectSound on Windows) to communicate with both the playback device and the recording device. Therefore if you change the host in either the playback or recording menu so that it differs from the host in the other menu, the host in that other menu will change to respect that.

In most cases (for example, the inbuilt computer sound device), each entry for input device consists of the input type (such as microphone), followed by the name of the audio device the input belongs to. If a device only has one possible input (for example, a USB microphone), only the name of the device will be listed, with no input type.

Input sources are no longer chosen in Mixer Toolbar.

Input Channels

Input Channels Image
1 (Mono), 2 (Stereo) or the number of channels that are provided by the drivers of your sound device. On most inbuilt sound devices, especially on Windows, only mono or stereo will be available. For some devices on Windows, choosing Windows DirectSound in "Host" above may be more likely to reveal options for recording more than two channels. On some devices capable of recording more than two channels, an explicit "multi" device may appear in the "Device" dropdown for recording all the channels simultaneously.
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