Operation Manual

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When the Lynx Hilo is selected as the output sound device, channels 1&2 are active by default. In this state, audio will
be sent to ALL Hilo outputs simultaneously. If you wish to mute a stream to a particular output, you can do that from
the Output Mix Routing Page, as describe in section 3.4.2 Output Mix Routing Page.
3.2.1.2 Controlling Latency by Changing the Buffer Size
Latency in an audio interface can be defined as the time required to process a sample from an application to the
interface’s audio output. A number of factors determine the achievable latency performance of a Hilo/LT-USB system:
Processor speed; Operating system; Sample rate; Number of utilized record or play channels; System efficiency; etc.
Latency can be manipulated by changing the size of the buffers used to transfer data to and from Hilo. Core Audio
buffer size controls are offered within most pro audio recording applications. With Hilo, buffer sizes typically range
between 32 and 2048 samples.
Smaller buffer sizes will give you lower latency. However, if a buffer size is too small for the system or context, audio
anomalies such as clicks and pops may occur. It is recommended to become familiar with altering the Hilo buffer size
to best suit the context of use.
Once you determine the lowest achievable buffer size, you will typically have to double the size each time you double
the sample rate, but the effective latency will remain constant. For example, if a system is capable of operating at a
buffer size of 128 samples at 48 kHz, then for a 96 kHz project, the buffer size will likely need to be increased to 256
samples.
3.3 Firmware Updates
Hilo contains firmware that is field-programmable via the Thunderbolt connection. These updates improve
performance and enhance functionality of Hilo. In some cases, the touch screen functions and appearance may change
dramatically from firmware updates.
Additionally, the LT-TB card installed into Hilo has its own firmware. There are also updates for this card available
that, similarly, can improve functionality and expand the feature set. Updaters for both the Hilo and the LT-TB running