Streams hifi radio


Player Recommendations

If you like a rich media experience, cover art and artist & title information with your music, we recommend using the best player out there:  StreamS HiFi Radio player.  It's $4.99 in the Apple app store and provides a multitude of features, including the ability to play our xHE-AAC and surround sound streams.  There are also a variety of free players available.  See the gallery above for our top recommendations.

While we provide player buttons for desktop listeners, you can use your mobile device for listening in the car or on earphones.  The Apple iOS and Android OS have decent adaptive bit rate players that will stream KFREE directly when you tap a player icon on our home page.  Know that they are sensitive to spotty cell coverage though, and the StreamS player excels under these conditions.  You can test your device's native player by tapping the button below.

A Few Technical Words About Digital Audio

We strive to make the KFREE listening experience meet or exceed that of downloaded music in terms of quality and overall volume. While we carefully prepare and encode the programming for all our streams, streaming media players employ additional peak control when decoding low bit rate streams (generally below 128 kbps).  Some do it delicately, others aggressively.  Neither is bad, they simply have a different sonic texture.  

The StreamS HiFi Radio player is our top recommendation for listening on your Apple phone or tablet.  Our xHE-AAC 48k stream works with the player to provide the same sonic texture as terrestrial radio, but without preemphasis and watermarking distortion.  The StreamS player also handles cell service dead zones or 'nulls' very gracefully, meaning fewer interruptions in areas of spotty service.  The player's $4.99 price is an excellent value and your ears will thank you!

If you're a stream engineer, you might benefit from our observations. After careful testing, we have found the following to be generally applicable when streaming in the AAC (48Khz) format using competent technology:

PCM: 89.1% (peak oversampling =/> 4x)

Decoded Peak Reference to Clip Point

256k AAC-LC: -1dBFS

128k AAC-LC: 0dBFS (uniform spectrum)

64k HE-AAC: carrier 7Khz passband 0dBFS; SBR >+2dB

32k HE-AAC: carrier 7Khz passband 0dBFS; SBR >+3dB