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SAM Output

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Correct output settings is vital to good SAM performance in SAM Broadcaster and SAM Party DJ. SAM features a low-latency audio engine that can handle latencies of as low as 15ms. This however will not work without problems on slow machines or sub-standard soundcards. If you experience skips or blips in the audio, you might need to set the output to have a higher latency. Even slow computers should be able to perform well with a latency of 100ms. A setting of around 25ms is recommended for fast computers with a good soundcard.

Air Output Settings

Output Window seen in SAM Broadcaster
Output Window seen in SAM Broadcaster

This configures the main output device.

  1. Output driver: Specify which device driver to use for the audio output.
    • Silent output: This output driver requires no soundcard. Thus it is ideal for use on a machine which does not contain any soundcards, or if you never wish to listen to the audio of your station directly.
    • DirectSound output: Uses the standard DirectX drivers for audio output. This driver is compatible with most machines and performs vary well in most conditions.
    • Kernel Streaming Output: This driver is a very advanced driver that totally bypasses the Windows audio layer by talking directly with the soundcard. This results in superior audio quality (the Windows mixer is known for not mixing audio perfectly) and much lower reliable latency.
      • Note: This mode however might not work on all soundcards.
  2. Output device: If you have multiple soundcards you should see multiple devices listed. Select the physical audio device to use for the main output.

Cue Output Settings

The cue output is used to preview tracks or work on tracks on a seperate output device. This allows you to cue up music and preview music, before actually playing it over the main output device.

There are four different cue output settings:

  1. Disable cue output: No cue output mode is specified and thus there will be no cue output device or active cue channel.
  2. Right channel: The main Air output audio will be played over the left speaker, and the Cue output audio will be played over the right speaker. (Note: This means that both channels will be converted to Mono)
  3. Rear channels: The main Air output audio will be played over the front speakers, and the Cue output over the rear speakers.
    • *Note: This requires a soundcard that supports at least 5.1 output. This mode might not work with the DirectSound driver on some machines, but should work fine with the Kernel Streaming driver.
  4. Seperate sound device (Recommended): Using a second soundcard for the Cue output is the very best way to preview tracks. These days all motherboards already contain a good on-board soundcard. So if you purchase a professional soundcard for your main air output, you automatically have a soundcard to use for your cue output!
  • Cue output driver: The output device driver to use. See Air output for detailed explanation.
  • Cue device specifies: The soundcard to use for the Cue output.

Buffer Settings

  1. Packets: Is the number of audio buffers the output driver can cache to ensure uninterrupted audio.
  2. Packet time: The duration of audio data each audio packet (buffer) can hold.
  3. Maximum latency: The total latency you can expect in the audio pipeline. A low latency is desired, but setting the latency too low on some systems can result in audio problems.
  • Force mono output: When selected, all stereo output will be downmixed into mono output. This is useful for playing audio in a huge location where stereo audio would cause the audio waves to interfere with each other due to the speed the audio travels, or locations where stereo output is simply not viable.

Once you have made the desired changes, you can click on the Apply button to immediately use the new audio settings. You might hear a short skip/blip in the audio as the driver is reloaded.

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