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Screenbits captures audio from output and input audio devices. You can record capture audio from any recording either individually in audio capture mode or playback add it to the captured video when using other [[Capture_mode|capture modes]]. == Input and output 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 bothheadphones. This includes In contrast, ''input audio'' refers to the audio generated by an external device, usually a microphone , and is provided as an input or output of to the speakerssystem. Select an == 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 device by files.#From the application window, click '''Primary Audio''' or the button under ''Mode''section.#Under 'Secondary Audio'Source'' button in section, enable at least one of the Main Viewinput or audio devices to capture. [[File:Playbackcapture_mode-devicesaudio.png|frame|left|Figure 1: Playback Audio Capture (PrimaryAudio capture mode) devices]]
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=== 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 12: Recording Audio capture (SecondaryScreen capture mode) devices]]
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In open-mic mode, the input audio gets captured continuously while in push-to-talk mode, input audio gets captured only when the specified push-to-talk key on keyboard is pressed. You can use push-to-talk mode to capture your voice only when you speak.
To enable recording a recording device (e.g. Microphone)change the input mode:#In the main view, click the '''Secondary Audio''' button to open the selection menu.#Select an audio device from the selection menu. #Click the '''Record''' button to start recording.
#From the [[Getting_started#Application_window|application 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. [[File:Input-audio-options.png|frame|left|Figure 3: Input audio options]]<br clear=all> == Notes =Volume ==*List of Screenbits uses system volume settings to capture audio devices. You can use ''Settings'' app to change volume for output and input devices may vary depending on your hardwareaudio:#Click '''Start''' to open ''Start Menu''.#Click '''Settings''' to open ''Settings'' app.*To disable audio recording, select #Click '''System'''to open '<none>'System'' from the selection menusettings.*If both primary and secondary devices are selected, Screenbits mixes both audio streams into a single audio track#Click '''Sound''' to change sound settings.*Bit[[File:System-rate, samplesound-rate and number of channels of the output are configurable from [[Settings#Audiosettings.png|frame|left|Audio SettingsFigure 4: System sound settings]].<br clear=all>
== Supported formats ==
Screenbits supports recording devices with the following audio formatsto capture:
* 1 channel8kHz, 16 bit11.025kHz, 44100 Hz* 2 channel, 16 bit16kHz, 44100 Hz* 1 channel22.05kHz, 16 bit24kHz, 48000 Hz* 2 channel32kHz, 16 bit44.1kHz, 48000 Hz* 1 channel48kHz, 16 bit88.2kHz, 96000 Hz* 2 channel96kHz, 16 bit176.4kHz, 96000 Hz192kHz sample rates* 1 channel(mono), 2 (stereo), 16 bit4, 192000 Hz6 and 8 channels* 2 channel, 16 bit, 192000 Hz24 and 32 bits per sample
If you attempt to record 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 audio device:
#Select Click '''Start''' to open ''Start Menu''.#Click '''Settings''' from the to open ''Settings'' app.#Click '''System'Recording'' menu to open ''SettingsSystem'' viewsettings.#From the Click '''Sound'Input'' section under the to change sound settings.#Click ''Audio'Sound Control' tab, click ''panel under 'Configure'Related Settings'' to open ''Sound'' settingscontrol panel.#Right click on the name of the device in list under the ''Playback'' or ''Recording'' tab and click '''Properties'''.#From the ''Default Format'' section under the ''Advanced Tab'' select one of the supported formats above.
#Click '''OK''' to apply changes to the device properties
[[File:Audio-format.png|frame|left|Figure 25: Audio Format - Sound settings]]
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