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Dolby TrueHD at a glance
Dolby TrueHD
TrueHD belongs to the Blu-ray and HD home-cinema period, when lossless multichannel branding became part of how premium disc releases differentiated themselves.
SLN at a glance
SLN
Telephony systems often value simple, predictable raw media assets over consumer-facing container polish, which is why formats like SLN remain operationally relevant long after their user-facing visibility disappears.
Format comparison
| Feature | Dolby TrueHD | SLN |
|---|---|---|
| File type | Audio | Audio |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2005 | 1999 |
| Inventor | Dolby Laboratories | Digium (Mark Spencer) |
| Status | active | active |
| Primary use cases |
|
|
| Multitrack support | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Supported | Supported |
When to use each format
When to use Dolby TrueHD
- Your source file is already in Dolby TrueHD.
- Preserve source expectations before exporting to SLN.
- Dolby TrueHD is commonly used in audio workflows.
When to use SLN
- Your target workflow expects SLN.
- Improve delivery compatibility with SLN.
- SLN is commonly used in audio workflows.
FAQs
Why convert Dolby TrueHD to SLN?
Convert to SLN when preparing prompts, voicemail assets, on-hold audio, or other sound files for Asterisk-style telephony systems that expect raw signed-linear input.
It is the right target when PBX compatibility and predictable call-audio handling matter more than metadata or ordinary media-player support.
What changes when converting Dolby TrueHD to SLN?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting Dolby TrueHD to SLN?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.