Server interface for low-level audio access. [AudioServer] is a low-level server interface for audio access. It is in charge of creating sample data (playable audio) as well as its playback via a voice interface. $DOCS_URL/tutorials/audio/audio_buses.html https://godotengine.org/asset-library/asset/525 https://godotengine.org/asset-library/asset/527 https://godotengine.org/asset-library/asset/528 Adds a bus at [code]at_position[/code]. Adds an [AudioEffect] effect to the bus [code]bus_idx[/code] at [code]at_position[/code]. Returns the names of all audio input devices detected on the system. Generates an [AudioBusLayout] using the available buses and effects. Returns the amount of channels of the bus at index [code]bus_idx[/code]. Returns the [AudioEffect] at position [code]effect_idx[/code] in bus [code]bus_idx[/code]. Returns the number of effects on the bus at [code]bus_idx[/code]. Returns the [AudioEffectInstance] assigned to the given bus and effect indices (and optionally channel). Returns the index of the bus with the name [code]bus_name[/code]. Returns the name of the bus with the index [code]bus_idx[/code]. Returns the peak volume of the left speaker at bus index [code]bus_idx[/code] and channel index [code]channel[/code]. Returns the peak volume of the right speaker at bus index [code]bus_idx[/code] and channel index [code]channel[/code]. Returns the name of the bus that the bus at index [code]bus_idx[/code] sends to. Returns the volume of the bus at index [code]bus_idx[/code] in dB. Returns the names of all audio devices detected on the system. Returns the sample rate at the output of the [AudioServer]. Returns the audio driver's output latency. Returns the speaker configuration. Returns the relative time since the last mix occurred. Returns the relative time until the next mix occurs. If [code]true[/code], the bus at index [code]bus_idx[/code] is bypassing effects. If [code]true[/code], the effect at index [code]effect_idx[/code] on the bus at index [code]bus_idx[/code] is enabled. If [code]true[/code], the bus at index [code]bus_idx[/code] is muted. If [code]true[/code], the bus at index [code]bus_idx[/code] is in solo mode. Locks the audio driver's main loop. [b]Note:[/b] Remember to unlock it afterwards. Moves the bus from index [code]index[/code] to index [code]to_index[/code]. Removes the bus at index [code]index[/code]. Removes the effect at index [code]effect_idx[/code] from the bus at index [code]bus_idx[/code]. If [code]true[/code], the bus at index [code]bus_idx[/code] is bypassing effects. If [code]true[/code], the effect at index [code]effect_idx[/code] on the bus at index [code]bus_idx[/code] is enabled. Overwrites the currently used [AudioBusLayout]. If [code]true[/code], the bus at index [code]bus_idx[/code] is muted. Sets the name of the bus at index [code]bus_idx[/code] to [code]name[/code]. Connects the output of the bus at [code]bus_idx[/code] to the bus named [code]send[/code]. If [code]true[/code], the bus at index [code]bus_idx[/code] is in solo mode. Sets the volume of the bus at index [code]bus_idx[/code] to [code]volume_db[/code]. Swaps the position of two effects in bus [code]bus_idx[/code]. Unlocks the audio driver's main loop. (After locking it, you should always unlock it.) Number of available audio buses. Name of the current device for audio input (see [method get_device_list]). On systems with multiple audio inputs (such as analog, USB and HDMI audio), this can be used to select the audio input device. The value [code]"Default"[/code] will record audio on the system-wide default audio input. If an invalid device name is set, the value will be reverted back to [code]"Default"[/code]. Name of the current device for audio output (see [method get_device_list]). On systems with multiple audio outputs (such as analog, USB and HDMI audio), this can be used to select the audio output device. The value [code]"Default"[/code] will play audio on the system-wide default audio output. If an invalid device name is set, the value will be reverted back to [code]"Default"[/code]. Scales the rate at which audio is played (i.e. setting it to [code]0.5[/code] will make the audio be played at half its speed). Emitted when the [AudioBusLayout] changes. Two or fewer speakers were detected. A 3.1 channel surround setup was detected. A 5.1 channel surround setup was detected. A 7.1 channel surround setup was detected.