586997

Lynx E22 Manual

42
Zoom out
Zoom in
Previous page
1/56
Next page
42
8.2.1.3 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 Lynx card: 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 the E22/E44. The higher the buffer size, the less work the computer has to do to stream
audio to the hardware. However, a higher buffer results in more latency. Also, the higher the
sample rate, the higher the buffer size needs to be. For instance, a buffer size of 128 samples
at a sample rate of 44.1kHz results in 2.9 milliseconds of latency. However, at 96kHz, a
buffer size of 128 = 1.33 milliseconds. Therefore the buffer size needs to be increased as the
sample rate increases to maintain the same level of performance. If the buffer size is too low,
you can experience clicks, pops or distortion in the audio. This is the result of buffer under-
runs, when the audio buffer is momentarily depleted because the computer cannot deliver
samples quickly enough to keep it filled.
Why is latency important? It isn’t in every case. Here are the main conditions where low
latency is important:
* Software input monitoring. This is where you are monitoring through your audio
software the input signals to be recorded. The software is re-directing the input signal back
out to a play device. If the buffer is too high here the performer will hear a noticeable delay
between the notes they are playing and hearing the sound back through the computer. Note
that with the E22/E44, zero latency hardware monitoring is available as an alternative to
software monitoring. See Section 7: Lynx Mixer Application Reference.
* Virtual Instruments. Generally this would involve using a software synthesizer or other
virtual sound source as an alternative to dedicated hardware like a keyboard or tone module.
Frequently one would play these instruments with some sort of MIDI controller. The delay
between a key being struck and hearing the resulting note from the virtual instrument is a
function of latency.
* Mix Automation. Virtually all DAW applications feature some sort of Mix Automation,
and most allow an external Mix surface or MIDI controller to facilitate mixing within the
software environment. Whether using onscreen faders or a MIDI surface of some sort,
latency will determine the delay between manipulating a fader or knob, and that move being
reflected in the project.
… 42 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Lynx E22 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Lynx E22 in the language / languages: English as an attachment in your email.

The manual is 2,71 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info