Musical Fidelity M1 SDAC Specifications download pdf (Page 37)

ADDITIONAL SETTINGS – WINDOWS®

Issue 4 Page 37 of 47

Software Overview for Windows

® Machines

These settings are for advanced use only. In most cases the default settings are suitable for normal playback.

The following is given for reference only. Third party software if enabled may override or be affected by changes

in these settings.

USB Audio Class Driver control panel

This shows version of the driver (and the version of the API provided by tusbaudioapi.dll)

USB Streaming mode offers the following options:

Minimum Latency

Low Latency

Standard

Relaxed

Safe

Extra Safe

This setting affects the amount of buffering that the audio driver uses between decoding samples from a file

and sending them to the USB device, when using the Kernel Streaming mode of USB driver operation; this is

used by Direct X and WASAPI.

Windows

® is not a real-time operating system and so does not make absolute guarantees of the time and

priorities given to task execution. This means that under certain circumstances, particularly on older hardware, it

is possible that the operating system fails to deliver samples to the audio device in time for it to send them out

when it needs them. If, on average, the PC is fast enough but, on occasion, it does not respond immediately to

sample requests then this problem can be mitigated by having the driver buffer samples. Having a larger buffer

makes playback more resilient to operating system delays. This buffering has a drawback: it introduces a delay

between the samples being delivered to the operating system driver and their being received by the MF USB

2.0 Audio Out hardware. This delay is small and, when one plays pre-recorded digital audio from a CD or file,

this is not a problem. There are real-time applications, for example when synchronising audio to an external

video source, where such a delay would be undesirable.

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 46 47

No comments

Musical Fidelity M1 SDAC Specifications Page 37