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Sound Keeper v1.3.3 [2023/08/19] — VEG.BY

Sound Keeper v1.3.3 [2023/08/19] — VEG.BY

2023-11-26 03:19:28

Prevents SPDIF/HDMI digital audio playback gadgets from sleeping. Makes use of WASAPI, requires Home windows 7+.

To allow autorun, copy soundkeeper.exe into the startup listing (to open it, press Win+R, enter shell:startup, press Enter). To shut this system, simply mute the Sound Keeper within the Quantity Mixer or kill the soundkeeper.exe course of.

Obtain: soundkeeper.7z (23KB). Source code →


  • Sound Keeper is totally computerized and does not require any person interplay.
  • Sound Keeper can preserve sound on many sound outputs concurrently (e.g. SPDIF and HDMI).
  • Sound Keeper detects new sound outputs on the fly (e.g. once you linked a TV by way of HDMI).


  • Default habits will be modified by altering file title of the Sound Keeper executable.
  • Major audio output is utilized by default. Add All to executable file title to allow Sound Keeper on all outputs.
  • Inaudible stream is utilized by default. Add Zero to executable file title to make use of stream of digital zeroes (prefer it was in v1.0.0).

If the default inaudible stream does not assist, attempt the brand new Sine stream kind. It generates a sine wave, and will be personalized. There are two parameters: F (frequency) and A (amplitude). The worth goes proper after the parameter character. For instance, add SineF10A5 to executable file title to generate 10Hz sine wave with 5% amplitude. Low frequencies (beneath 20Hz) and excessive frequencies (above 20000Hz) with low amplitude (as much as 10%) are inaudible.

What’s new in v1.3.3

  • Fastened arguments parsing bug: All or Analog after specifying stream kind led to amplitude set to 0.

What’s new in v1.3.2

  • Fluctuate treats 32-bit PCM output format as 24-bit since WASAPI reviews 24-bit as 32-bit for some cause.
  • Fluctuate generates 50 fluctuations per second by default. It helps in lots of extra circumstances.
  • Sound Keeper does not exit when it’s muted.

What’s new in v1.3.1

  • A possible impasse when audio gadgets are being added or eliminated has been fastened.
  • Fluctuate treats non-PCM output codecs (like Dolby Atmos) as 24-bit as a substitute of 16-bit.
  • Frequency parameter F is proscribed by half of present pattern price to keep away from technology of surprising noise.
  • Extra detailed logs in debug build. Debug output is flushed instantly, so it may be redirected to a file.

What’s new in v1.3.0

  • Fluctuate is 1 fluctuation per second by default. Frequency will be modified utilizing the F parameter.
  • Periodic enjoying of a sound (parameters L and W) with optionally available fading (parameter T).
  • New White, Brown, and Pink noise sign sorts.
  • Self kill command is added. Run soundkeeper kill to cease working Sound Keeper occasion.
  • Analog swap was added. It really works as the other of Digital.
  • Ignores distant desktop audio machine (this function will be disabled utilizing the Distant swap).
  • New OpenOnly mode that simply opens audio output, however does not stream something.
  • New NoSleep swap which disables PC sleep detection (Home windows 7-10).
  • Work as a dummy when no appropriate gadgets discovered.
  • Sound Keeper should not forestall PC from computerized going into sleep mode on Home windows 10.
  • This system just isn’t confused anymore when PC auto sleep is disabled on Home windows 10.
  • The workaround that allowed PC to auto sleep needed to be disabled on Home windows 11.

Sound Keeper vs. SPDIF Hold Alive vs. SPDIF-KA

Sound Keeper v1.0 SPDIF Hold Alive v1.2 SPDIF-KA v1.4
Absolutely computerized: Sure No No
A number of outputs: Sure No No
GUI: No Sure Sure
Requires .NET: No Sure Sure
Executable measurement: 17KB 668KB 163KB
CPU utilization (on Intel Core i5 4460): 0.004% 0.06% 0.06%
RAM utilization (Personal Working Set): 1636KB 13704KB 10600KB

Identified problem: streaming audio prevents computerized sleep mode

When a program streams any audio (even silence), the system do not go into sleep mode mechanically. Sound Keeper makes use of the NtPowerInformation(SystemPowerInformation, ...) operate to retrieve time when system goes to sleep, and disables itself proper earlier than this time. On Home windows 7, it really works completely. Home windows 10 waits for two minutes extra after any sound was streamed, so the PC goes into sleep mode after 2 minutes when Sound Keeper disabled itself. For some cause, Home windows 11 at all times reviews that the system goes to sleep in 0 seconds. So, the workaround needed to be disabled on this OS till a greater answer is discovered. You may attempt to use the powercfg to workaround this problem on the system stage. Details →

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