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Windows provides global slider controls for altering DirectSound performance on a system-wide basis. The sliders control the level of hardware acceleration and quality of sample-rate conversion (SRC) that are made available to DirectSound applications. Changes made to the hardware-acceleration and SRC sliders are persistent across boot-ups.
The hardware-acceleration and SRC settings can be changed only by direct end-user action. No API is available for changing the hardware-acceleration or SRC setting from an application program. This behavior improves stability and prevents software from placing the audio system in a state from which it cannot be removed without rebooting.
- This package contains the Realtek High Definition Audio driver. Audio driver is the software that helps your operating system to communicate with audio devices such as sound cards and speakers. This update enhances the driver compatibility with Windows 10 Creators Update. Get the latest driver.
- Latest downloads from REALTEK in Sound Card. Sort by: last update. 1.x) Realtek Audio Driver 6.0.8945.1 for Windows 10 64-bit 106 downloads.
- Right-click the listing for your sound card or audio device, then select Update driver Browse my computer for driver software Let me pick from a list of device drivers on my computer. Select the audio device whose driver you want to update, select Next, and then follow the instructions to install it.
- ASIO4ALL is a free and alternative audio driver which allows its users to get very low latency from their sound adapter. While most sound cards on the market allow you to playback audio without issue, ASIO4ALL provides a free alternative if you're having issues running software which increases latency on sound output.
These settings affect only DirectSound applications. Note that the waveOut API always uses the best SRC quality regardless of the setting of the DirectSound SRC slider. Also, in all current versions of Windows, waveOut applications are unable to use hardware-accelerated pins on audio devices and are unaffected by the setting of the DirectSound hardware-acceleration slider. For more information about the Windows multimedia waveOut API, see the Microsoft Windows SDK documentation.
To locate the DirectSound hardware-acceleration and SRC sliders in Windows, for example, follow these steps:
In Control Panel, double-click the Sounds and Audio Devices icon (or just run mmsys.cpl).
On the Audio tab, select a device from the Sound Playback list.
Select the Advanced button.
Select the Performance tab.
At this point, you should see two sliders that are labeled Hardware acceleration and Sample rate conversion quality.
The hardware-acceleration slider has four settings that range from None (level 0) on the left to Full (level three) on the right. The following table shows the meaning of these settings.
|Acceleration Level||Setting Name||Description|
Disables hardware acceleration of DirectSound secondary buffers.
Enables hardware acceleration of DirectSound secondary buffers but disables vendor-specific property-set extensions.
Enables hardware acceleration of DirectSound secondary buffers and enables vendor-specific property-set extensions.
The Emulation setting above forces DirectSound into emulation mode. In this mode, DirectSound applications run as though no DirectSound driver is present. All mixing is done by DirectSound in user mode, and the resulting audio data is played back through the waveOut API. The result is typically a large increase in latency.
The Basic setting disables hardware acceleration of DirectSound secondary buffers. Under this setting, all DirectSound applications run as though no hardware acceleration is available, regardless of the capabilities of the sound card that is being used. You can use this setting during testing to emulate a sound card that has no DirectSound acceleration. With an adapter such as the OPL, which has no acceleration of DirectSound secondary buffers, this setting has the same effect as the Standard setting. In Windows Server 2003, Basic is the default setting.
The Standard setting enables hardware acceleration of DirectSound secondary buffers but disables vendor-specific extensions such as EAX (Creative Technologies' environmental audio extensions) that are exposed as property sets through the IKsPropertySet interface (see Exposing Custom Audio Property Sets). In Windows 2000, the Standard setting is selected by default.
The Full setting enables full acceleration of DirectSound secondary buffers. This setting also enables property sets for vendor-specific extensions that are exposed through the IKsPropertySet interface (see Exposing Custom Audio Property Sets). IKsPropertySet extensions include vendor-specific hardware enhancements such as EAX.
If the user adjusts either the hardware-acceleration or SRC setting to a value other than the default, DirectSound uses the new setting instead of the default.
ASIO4ALL is a free and alternative audio driver which allows its users to get very low latency from their sound adapter.
While most sound cards on the market allow you to playback audio without issue, ASIO4ALL provides a free alternative if you're having issues running software which increases latency on sound output.
It's a generic WDM driver that can be used in various situations, especially when you're using an older audio device or running an older version of Windows which doesn't include support for your audio driver.
ASIO4ALL is ideal for MIDI devices and provides installation without problems and requires no special knowledge or settings. Installation is pretty quick and straightforward. When you start ASIO4ALL, it will appear in the system tray where it can be accessed to manage the driver. Different options include latency in/out compensation, buffer offset and resample audio between 44.1kHz and 48kHz.
The WDM device list has controls for output and input including mix capture, speaker output, etc.
Overall, a great alternative for people experiencing issues when working with audio mixing and creation projects.
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ASIO4ALL 2.14 on 32-bit and 64-bit PCs
This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system on a laptop or desktop PC from drivers without restrictions. ASIO4ALL 2.14 is available to all software users as a free download for Windows.Filed under:
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