![]() The Tandy 1000 was based on the IBM PCjr and like the PCjr it included not only the standard PC speaker but also the TI-SN76496 sound chip which provided three square wave tone generators and one white noise generator. There are no special options to configure for the PC Speaker. The PC Speaker is configured under the speaker category. However, a Windows driver was written that allowed Windows games to utilize the PC Speaker in this manner, which was useful if the user had no other sound device. Very few games utilized the PC Speaker in this way, as the CPU requirements were high and the quality was severely limited. Later, some developers invented ways to generate complex audio through the PC Speaker, even reproducing voice. (to inform the user, in a series of beeps, if there is any low level hardware issue) Early game developers utilized the PC Speaker to generate music and sound effects - to good effect. ![]() Built into every personal computer to this very day, the PC Speaker acts as diagnostic device during the initial booting up of a computer. The most ubiquitous audio device of all time. Although the sound quality you will get depends heavily on your configuration and what the software you are running supports, they are listed here in roughly ascending order of audio processing power. The sample rate of a device must never exceed the rate setting under the mixer heading, as this will cause undefined behavior.ĭOSBox can emulate the following devices. Note that almost all sound devices have a configuration setting to enable or disable them, as well as one for the sample rate of the emulation. Each emulatable device has its own configuration section. (The one notable exception being routing music and sound effects through different devices, which was common for people with both a Sound Blaster and a separate MIDI device.) DOSBox also makes sure the appropriate environment variables are defined for each device, so game audio device auto-detection usually works, if the game attempts it.ĭOSBox's output to your real computer's sound system is configured under the mixer category. A game will likely only use a single device at a time anyway. Sound devices that are not in use do not use many resources, so you don't gain much in the way of performance by reducing the number of sound devices enabled. Most of the sound devices are capable of existing inside the same computer at the same time, so when configuring DOSBox sound you need to think of them as separate devices that can be enabled or disabled. Thankfully, DOSBox can emulate all the most popular sound systems of the DOS era, so one can usually find something that sounds good. Also, different devices supported different features, resulting in games that could sound very different (maybe high-quality music on one card, but voice-acting on another) depending on the hardware available. And the game had to be configured with the memory addresses of the hardware by hand. If a game did not support a user's audio hardware, no sound was possible. Software had to include separate support for each sound device it wanted to give the users the option of using. Unlike Windows, DOS did not keep a list of the system's sound devices, nor did it expose generic drivers for them. Sound was sometimes difficult to set up in the DOS era. ![]() By emulating the hardware the user can utilize whatever audio device they have installed in their PC, while the DOS Game or Application believes it is running on the emulated hardware. GK codepage 869 and RU codepage 808).DOSBox is capable of emulating several sound devices. Switch between foreign layout and US layout.Īctivate dual layouts (for some keyboards, e.g. These default bindings are also documented in the README file accompanying the software. ![]() Increase DOSBox cycles ( speeds up the emulation). Start/Stop the recording of raw MIDI commands.Ĭapture/Release the mouse (if you need to use the mouse within DOSBox).ĭecrease DOSBox cycles ( slows down the emulation). Start/Stop recording sound output to a wave file (goes to capture folder). NOTE: You may well have some problems with this, please see Recording Video for more information. Save a screenshot (goes to capture folder). Also cycles through disk images mounted using IMGMOUNT. Useful if you changed something on a mounted drive outside of DOSBox. Update cached information about mounted drives. You can do this by going to System Preferences > Keyboard, going to the Keyboard area, and checking the "Use all F1, F2, etc" box. Note: If you're using a Mac and are having trouble with the function keys, you may need to set your F keys to function as function keys.
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