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Screenbits can record captures audio from output and input audio devices. You can capture audio either individually in audio capture mode or add it to the captured video when using other [[Capture_mode|capture modes]]. == Input and output devices including audio ==Screenbits uses general terms for the audio sources which it can capture. The term ''output audio'' refers to the audio which is generated by the system and provided to an external device. This is usually the system sound which you can hear from speakers or headphones. In contrast, ''input audio'' refers to the audio generated by an external device, usually a microphone , and speakers (is provided as an input to the system sound). == Audio capture mode ==In audio capture mode, audio devices are the only capture source so the output only contains audio, and [[Recorder|recorder]] produces audio files.#From the application window, click '''Audio''' button under ''Mode'' section.#Under ''Source'' section, enable at least one of the input or audio devices to capture. [[File:Playbackcapture_mode-devicesaudio.png|frame|left|Figure 1: Output devicesAudio Capture (Audio capture mode)]]

 === Notes ===*You can manually choose a specific device to capture rather than the default device. == Other capture modes ==To capture audio in a capture mode other that audio capture mode:#From the [[Getting_started#Application_window|application window]], under ''Options'' section, turn '''Output audio''' or '''Input audio''' switch on. [[File:RecordingAudio-devicescapture.png|frame|left|Figure 2: Input devicesAudio capture (Screen capture mode)]]

To enable recording == Input mode ==You can choose the input mode for capturing audio from an output input audio device (esuch as a microphone.g. Speakers or system sound)Currently, two input modes are available:#From the [[Getting_started#Application_window|application window]], under ''Audio'Open-mic' section, click 'and ''Output audio''' button Push-to open output audio options.#Turn '''Output audio'-talk'' switch on.

To enable recording an In open-mic mode, the input device (e.g. Microphone):#From the [[Getting_started#Application_window|application window]], under ''Audio'' section, click '''Input audio''' button gets captured continuously while in push-to open -talk mode, input audio optionsgets captured only when the specified push-to-talk key on keyboard is pressed.#Turn '''Input audio''' switch onYou can use push-to-talk mode to capture your voice only when you speak.

=== Notes ===*You can manually choose a device to record if you want to record a device other than To change the default device.input mode:*Audio options cannot change while recording is in progress.*More information about output format can be found on #From the [[OutputGetting_started#AudioApplication_window|Output audioapplication window]], click '''Input audio options''' button next to the input audio switch under ''Options'' or ''Audio'' section to open ''Input audio options''.#Select the desired input mode from '''Input mode''' selector.

Screenbits uses system volume settings to record capture audio devices. You can use ''Settings'' app to change volume for output and input audio:#Click '''Start''' to open ''Start Menu''.#Click '''Settings''' to open ''Settings'' app.#Click '''System''' to open ''System'' settings.#Click '''Sound''' to change sound settings. [[File:System-sound-settings.png|frame|left|Figure 4: System sound settings]]<br clear=all> == Supported formats ==Screenbits supports devices with the following audio formats to capture: * 8kHz, 11.025kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz sample rates* 1 (system soundmono) and input , 2 (microphonestereo) , 4, 6 and 8 channels* 16, 24 and 32 bits per sample If you attempt to capture an audio device with an unsupported format, an error message pops up asking you to select a different format for the device.  To change the default format of an audiodevice: 

[[File:SystemAudio-sound-settingsformat.png|frame|left|Figure 35: System sound Audio Format - Sound settings]]