M-Audio AP-012403 specification

If you activate both sets of input and output channels, you will notice that the 24-bit setting in the Sample Depth column is grayed out and the “Maximum sample rate” is shown as 48000 Hz.

NOTE: Whenever S/PDIF Input is selected as an Active Port, the Audiophile is expecting a digital signal at that port and to lock to the sample rate of that signal. When S/PDIF Input is selected and there is no signal present at the S/PDIF Input port, or the S/PDIF signal is not recognized or invalid, the Audiophile USB will not operate properly. Most likely, you will hear audio from the Audiophile, but it will be running at an odd sample rate and sound like it is playing at the wrong speed.

DD/DTS Pass-Thru:Just below the Sample Depth column, you will see a checkbox labeled,“DD/DTS Pass-Thru.” If you are using a Software DVD player and wish to send encoded multi-channel audio such as Dolby Digital or DTS to the Audiophile USB’s S/PDIF output port, then check this box. If you are only sending stereo audio (standard PCM—not encoded surround) to the S/PDIF output port during normal operation, then leave this box unchecked.

If you have this box checked, you can still send stereo digital audio to the S/PDIF port without any problems. However, you will notice that when the DD/DTS Pass-Thru box is checked, ONLY the S/PDIF port is active in the Active Ports column. Unchecking the DD/DTS Pass-Thru box will restore the port selection to the previous configuration.

Latency: Driver “Latency” can be selected from a range of values shown in a drop-down list located just below the “Maximum Sample Rate.” The default setting when the Audiophile is first installed is “Very High.” Because slower computer systems require larger sample buffers to avoid dropouts in the audio stream, a higher latency value is often necessary.

How low you will able to set the Latency will depend on several factors, such as your system’s performance and the performance of the music program itself. To test your system for lower Latency, try the “very low” setting first (as shown in the previous screenshot), and if your system stutters or performance falters, try the next higher setting until the system performance stabilizes. Once you are satisfied with any of the control panel settings, click OK to close the Audiophile USB Control Panel.

Version Numbers: The lower left corner the Audiophile USB Control Panel page displays the ASIO Driver Version, USB Driver Version, and the Firmware Version numbers currently in use. This is useful when checking for driver updates on the M-Audio website, or in the event that you need to call tech support and give them your system information.

AP-012403 specifications

The M-Audio AP-012403 is a versatile and high-quality audio interface designed for musicians, producers, and podcasters. This device stands out with its user-friendly features, impressive sound quality, and robust build that make it a staple in both home studios and professional setups.

One of the main features of the M-Audio AP-012403 is its dual-input capability. It allows users to connect microphones, instruments, or other audio sources simultaneously, making it ideal for recording bands, duos, or solo artists who wish to layer their sounds. The interface is equipped with high-quality preamps that deliver exceptional sound clarity and warmth, ensuring that every nuance of the performance is captured accurately.

In addition to its input versatility, the device supports high-resolution audio recording up to 24-bit/192 kHz. This means that the M-Audio AP-012403 is capable of capturing audio with remarkable detail, making it suitable for both studio recordings and live performances. Musicians can confidently record their vocals and instruments without worrying about losing quality in the process.

Another key feature is the low-latency monitoring, which allows users to hear their inputs in real-time without the delay that can be distracting during recording sessions. This feature is particularly crucial for vocalists and musicians who rely on accurate timing and pitch when laying down tracks.

The M-Audio AP-012403 also incorporates MIDI connectivity, offering musicians the ability to connect keyboards, controllers, or synths directly to their system. This makes it a great addition for those who work extensively with MIDI instruments as part of their music production process.

Furthermore, the interface comes with a robust software bundle, including digital audio workstations (DAWs) and various virtual instruments and effects. This provides users with everything they need to start producing music right out of the box.

The design of the M-Audio AP-012403 is both sleek and durable, featuring a compact footprint that makes it portable and easy to incorporate into any setup. Additionally, the intuitive plug-and-play functionality ensures that users can get started with minimal hassle.

Overall, the M-Audio AP-012403 combines excellent audio performance with practical features and flexible connectivity options, making it an attractive choice for musicians and content creators looking to elevate their audio production capabilities.