Alesis 12 FireWire, 16 FireWire, 12, 16 manual Adjusting latency by changing the buffer size

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Firewire Recording 5

Adjusting latency by changing the buffer size

“Latency” refers to the amount of time it takes for audio to get into and out of the computer. In the best of all possible worlds, there would be no such thing as latency—we would hear audio the moment it was created. However, computers have limited processing power, and they can “choke”—cutting off recording or crashing programs—if they are asked to handle too much data all at once.

To minimize this risk, audio can be stored in a buffer for a certain amount of time. This buffering helps smooth out the stream of data that the computer needs to handle. In the end, all of the audio is sorted out and played correctly, but with a delay.

Here are the basic considerations to consider when adjusting buffer sizes:

Lower buffer size = less latency but higher risk of audio problems

Higher buffer size = more latency but lower risk of audio problems

Very high buffer size = possible system instability

For most systems, there is a “sweet spot” where latency is not too high and system performance is good. Experiment with raising or lowering buffer sizes to hit this sweet spot.

As you begin adding plug-in EQ, compression, and so forth to your project, your computer will need to work harder. If you start to hear clicks, pops and other glitches in your audio, consider increasing your buffer size at this time.

As a final note, one tremendous benefit that the MultiMix FireWire offers is that you can monitor through it without latency at all. Simply press down the MIX TO CTRL ROOM button, and you can hear what you’re recording without havig to worry about your computer’s settings.

Adjusting the sample rate

You can change the sample rate that the MultiMix uses in this area.

Some audio programs require that you change the sample rate under their Project Setup or similar menus as well. For instance, in Cubase, be sure that the sample rate selected here matches the settings under the “Project” “Project Setup…” menu.

Many people use two latency settings—a lower one when recording tracks and a higher one when mixing.

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Contents Reference Manual Page Table Of Contents Table Of Contents Accessing the Asio control panel This page intentionally left blank Welcome IntroductionMultiMix FireWire Key Features About the MultiMix FireWireAll-In-One Mixer and Multichannel Computer Audio Interface Introduction Multichannel Firewire Ieee 1394a input and outputHow to Use This Manual Few Words for Beginners This page intentionally left blank Getting Started Hooking up the MultiMix FireWireSetting Levels Using Proper CablesGetting Started Line Inputs Channels 1 Tour of the MultiMix FireWirePatchbay Mic Inputs Channels 1Phone Jack Tour of the MultiMix FireWireLine Inputs Channels 5 Pdif Digital Output JackFader Channel StripsMute / Alt 3/4 Aux PAN or BALMaster Section Aux Ret a Level MIX SwitchALT 3/4 Switch 2TK Switch+48V Indicator Power IndicatorLED Meters Rear of the Mixer Effects Section Components Digital Effects ProcessorEffect Descriptions Chorus Digital Effects ProcessorPdif digital output to a digital recorder Simple Live SetupUsing Additional External Audio Sources Traditional MixingTraditional Mixing First-time connection instructions and driver installation Firewire RecordingPower-on sequence Firewire RecordingInstalling the optional applications Power-on/Power off orderChannels sent from the MultiMix to the computer Firewire inputs and outputsChannels returned from the computer to the MultiMix Sound setup under Windows Firewire Recording Disabling Windows System Sounds TK to MIX Leave UP Choosing the MultiMix as your audio device Choose the menu option Devices Device Setup…Firewire Recording Firewire Recording Firewire Recording Creating a new audio file Firewire Recording Firewire Recording Firewire Recording Working with the Asio control panel Accessing the Asio control panelSetting the mixer nickname Setting the master deviceAdjusting the sample rate Adjusting latency by changing the buffer sizeChoose the menu Options Audio… Firewire Recording Firewire Recording Assigning inputs to audio tracks Using the MultiMix FireWire with CoreAudio on the Macintosh Cause Troubleshooting non-FirewireEffects / AUX RET B Troubleshooting non-FirewireLED meters not working Computer does not see the MultiMix This page intentionally left blank Basic troubleshooting Troubleshooting FirewireAdvanced troubleshooting under Windows Troubleshooting Firewire Audio playback or recording stutters or drops out Audio playback or recording is at the wrong speedAudio echoes during recording This page intentionally left blank Input Channels SpecificationsMechanicals L x H SpecificationsBlock Diagrams Block Diagrams Term GlossaryContact Information Glossary Trademarks Alesis Contact Information

12 FireWire, 16 FireWire, 12, 16 specifications

The Alesis 12 FireWire and 16 FireWire mixers are innovative audio solutions designed for musicians, podcasters, and audio engineers looking to integrate seamless digital recording capabilities into their workflow. These mixers are equipped with FireWire technology, allowing for high-speed data transfer to computers, which is essential for real-time audio production and recording.

One of the standout features of the Alesis 12 FireWire mixer is its 12-channel configuration, allowing users to connect multiple audio sources, including microphones, instruments, and other audio devices. Each channel is equipped with a 3-band EQ, gain control, pan, and a selectable effect send, providing flexibility for sound shaping. The 16 FireWire model expands upon this, offering 16 channels to accommodate even larger setups for more complex audio routing and mixing scenarios.

Both models feature built-in FireWire interfaces that enable direct recording to a computer without the need for external converters. This integration simplifies the recording process and makes it easier for users to capture high-quality audio in a digital environment. The FireWire connection provides low latency, ensuring that performers can monitor their sound in real-time without noticeable delay.

In terms of build quality, the Alesis mixers are constructed with durability in mind. They feature robust controls, a solid chassis, and a user-friendly layout. This practicality makes them suitable for both studio and live environments, where reliability and ease of use are crucial.

In addition to the essential mixing capabilities, both models support various effects through their built-in processing. The 12 and 16 FireWire mixers come with several onboard effects such as reverb and delay, allowing users to enhance their audio without needing additional outboard gear.

Furthermore, these mixers support phantom power, enabling the use of condenser microphones that require additional power to operate. This feature is particularly advantageous for recording studios and live sound applications.

Overall, the Alesis 12 and 16 FireWire mixers are powerful tools that cater to the needs of modern audio professionals. Their integration of FireWire technology, extensive channel options, built-in effects processing, and user-friendly design make them an excellent choice for anyone looking to elevate their audio production capabilities. Whether you are working in a studio or performing live, these mixers deliver the quality and versatility needed to achieve outstanding sound.