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CROSS-FORMAT

Convert 3G2 to SLN

Convert 3G2 to SLN online for free with no sign up, with quality-focused workflow guidance.

3G2 at a glance

3G2

3G2 belongs to an era when mobile ecosystems were more fragmented across standards families, carriers, and handset capabilities.

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
3G2
SLN
File type

Video

Audio

Extensions
  • .3g2

  • .sln

  • .raw

MIME type
  • video/3gpp2

  • audio/x-sln

Compression / quality

depends

depends

File size characteristics

large

medium

Compatibility

moderate

broad

Editability

limited

limited

Created year

2004

1999

Inventor

3GPP2

Digium (Mark Spencer)

Status

active

active

Primary use cases
  • editing

  • mastering

  • streaming delivery

  • mp4

  • m4v

  • 3gp

  • capture ingest

  • editing and mastering

  • streaming or playback delivery

  • voc

  • au

  • wav

Common software
  • older phones

  • FFmpeg

  • migration tools

  • Asterisk

  • SoX

  • telephony prompt toolchains

Archival suitability

moderate

moderate

Metadata handling

moderate

moderate

Delivery profile

strong

strong

Workflow fit

delivery

delivery

Multitrack support

Not supported

Not supported

HDR support

Not supported

Not supported

Streaming ready

Not supported

Supported

When to use each format

When to use 3G2

  • editing
  • mastering
  • streaming delivery
  • Useful for long-tail mobile-media compatibility.

When to use SLN

  • capture ingest
  • editing and mastering
  • streaming or playback delivery
  • Simple raw representation aligned with telephony workflows.

FAQs

Why convert 3G2 to SLN?

Choose SLN as target when preparing prompts, voicemail assets, on-hold audio, or other sound files for Asterisk-style telephony systems that expect raw signed-linear input.

What changes when converting 3G2 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 should I review after converting 3G2 to SLN?

After conversion, review these destination checks: Open converted output in Asterisk and verify behavior on real samples; Compare output against the expected depends quality profile; Not a general-purpose consumer exchange format.

How can I keep quality stable in 3G2 to SLN conversion?

Run representative samples, keep settings deterministic, and monitor these risks: Requires workflow context to interpret sample-rate-specific extensions correctly; Not a general-purpose consumer exchange format; Validate destination compatibility before large-batch conversion.

Format resources

3G2SLN

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