


APTmpX is the world’s first non-perceptual MPX/composite algorithm to save network bandwidth while maintaining high audio transparency. APTmpX offers the perfect balance between maintaining high quality and cost-effective transmission. With less than 300, 400, or 600 kbps bandwidth requirement, narrowband IP connections, and in conjunction with APT's SureStream technology, the Internet can be used with confidence. APTmpX offers full compatilbility with digital and analog MPX. With this new technology, FM broadcasters now have access to high-quality signal compression for MPX/Composite transmission. APTmpX is included as a standard format in the MPX license cost, in all MPX/composite compatible APT IP codecs, and as a software (APTmpX Software) for 3rd party software sound processors.
APTmpX:
| Models | Bandwidth requirement | RDS Transmission | Compatibility | |
|---|---|---|---|---|
APTmpX | 300, 400, 600, 900 kbps |
| All MPX/Composite APT IP codecs, Ecreso AiO Series transmitters with IP decoder feature | |
APTmpX Software | 300, 400, 600 kbps |
| 3rd party software sound processors |
The complete digital signal path from the studio to the analog RF carrier of the transmitter represents the pinnacle of quality for analog FM broadcasting. APTmpX offers an ideal solution for this transition, featuring low complexity, minimal latency, and straightforward integration to seamlessly connect your digital studio with your digital transmitter.

Hear for yourself the superior audio quality of APTmpX by comparing the different compression formats.
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