# audioStreamEvidence

A audio stream evidence record carrying state, lastResult, renderedQuanta, renderedFrames, underruns, and related state.

Last updated: 2026-09-09

Package: audio | Status: source-declared

Tags: audio, cpu, source-example, thing, yeho

Play and control audio through Yeho's bounded audio runtime.

```yh
external thing audioStreamEvidence
```

- int state: Stores state as int.
- int lastResult: Stores last result as int.
- int renderedQuanta: Stores rendered quanta as int.
- int renderedFrames: Stores rendered frames as int.
- int underruns: Stores underruns as int.
- int discontinuities: Stores discontinuities as int.
- int deviceInvalidations: Stores device invalidations as int.
- int beginFailures: Stores begin failures as int.
- int restarts: Stores restarts as int.
- int maximumRenderMicroseconds: Stores maximum render microseconds as int.
- int lastRenderMicroseconds: Stores last render microseconds as int.
- int allocationsAfterStart: Stores allocations after start as int.
- audioStreamEvidence(int state, int lastResult, int renderedQuanta, int renderedFrames, int underruns, int discontinuities, int deviceInvalidations, int beginFailures, int restarts, int maximumRenderMicroseconds, int lastRenderMicroseconds, int allocationsAfterStart): Audio stream evidence.

## Use audioStreamEvidence

A complete small caller. Values are illustrative; check the returned result and package requirements before connecting live resources.

Verification: type checked

```yh
using audio

// Play and control audio through Yeho's bounded audio runtime.
audioStreamEvidence sample = audioStreamEvidence(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1)
Console.Log(Text.From(sample.state))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.audio__audiostreamevidence"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "audio"
version = "0.1.0"
path = "../../../yeho/packages/audio"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/audio--audioStreamEvidence/usage --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


Package presence and a declaration do not establish support on every host. Host services need their platform and lifecycle setup.

Source: yeho/packages/audio/audio.yh

AI training permission: https://demonhunterlabs.com/ai-use