ProFire 2626

User Guide

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8 Digital Clocking

Your computer-based DAW stores and manipulates music as digital samples. Those samples are sent to and from your DAW as “snapshots” of data. These snapshots are all the same size—16-bit or 24-bit, depending on your selected resolution—each with a beginning and an end, and are sent in sequential order (i.e., one after the other) as a stream

of data. Think of this data stream as a sentence, made up of a series of words of identical length. The rate at which these words are transmitted (i.e., how many samples are transmitted each second) is known as the “sample rate” of the device. Audio CDs have a sample rate of 44,100 samples per second (known as “44.1 kHz”) whereas certain high-end professional audio devices (such as ProFire 2626) support very high sample rates (up to 192 kHz) for high audio fidelity.

Precise, accurate timing in sending and receiving those words is critical. Each device in your interconnected digital world must share the same timing in order to communicate correctly—that is, their clocks must be synchronized.

This synchronization is achieved by designating one device as the timing “master,” and all other connected devices as “slaves,” locking the slaves to the master. Only one device in the chain can be the master, and all other devices must slave to that master. All devices must be running at the same sample rate as well. For example, if the master is running at 44.1 kHz, no other device should be set to any other sample rate.

Word Clock is an important part of digital studios but is often overlooked by engineers new to digital recording. It is crucial to set up Word Clock correctly because without precise synchronization between your digital devices, your digital audio signal will be filled with clicks, pops, and white noise, or may not play at all. The following pages give practical digital synchronization examples and setup tips.

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M-Audio 2626 manual Digital Clocking
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2626 specifications

The M-Audio 2626 is a versatile audio interface designed to cater to the needs of music producers, engineers, and podcasters. With its robust feature set, it provides an excellent solution for capturing high-quality audio in both studio and live environments. One of its main attributes is the capability of handling up to 26 inputs and 26 outputs, making it particularly suitable for complex recording sessions involving multiple microphones and instruments.

A standout feature of the M-Audio 2626 is its high-resolution audio conversion, supporting 24-bit depth and sample rates up to 192 kHz. This ensures that recordings maintain clarity and detail, which is essential for professional audio production. The unit employs advanced A/D and D/A conversion technologies, which contribute to its low noise levels and high dynamic range, ensuring your audio is free from distortion.

Connectivity is another strong point. The M-Audio 2626 features a combination of both analog and digital inputs, including eight XLR/TRS combo inputs with phantom power for condenser microphones. This flexibility allows users to integrate various sound sources easily. Additionally, the device includes multiple MIDI inputs and outputs, supporting the integration of MIDI controllers and other gear for comprehensive music production setups.

The interface is equipped with a user-friendly control panel, enabling straightforward navigation through its routing features and settings. Users can easily control levels, monitor audio through reliable headphone outputs, and make adjustments on-the-fly, which is crucial in dynamic recording environments.

In terms of compatibility, the M-Audio 2626 works seamlessly with major digital audio workstations (DAWs) across both Mac and PC platforms. Its class-compliant USB interface allows for quick connection without the need for additional drivers, facilitating an efficient workflow right out of the box.

The device’s rugged design is built to withstand the rigors of daily use, making it an ideal choice for both studio settings and on-the-road applications. Its compact form factor also ensures it won’t take up too much space in your gear bag.

Overall, the M-Audio 2626 stands out as a powerful audio interface that combines high-quality audio performance with a flexible and intuitive design. Whether you're a seasoned professional or an enthusiastic beginner, this interface provides the tools necessary to elevate your audio production experience.
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