The frequency range of Bluetooth audio typically falls between 20 Hz and 20,000 Hz. This range is the same as the human hearing range, meaning Bluetooth can reproduce most audible sounds.
However, the actual frequency response may vary depending on:
- Codec used: Bluetooth uses different codecs for audio transmission, each with its own frequency range. For example, the standard SBC codec has a range of 20 Hz to 20 kHz, while aptX and aptX HD can reach 40 kHz.
- Hardware limitations: The specific Bluetooth hardware used (transmitter and receiver) can impact the frequency response. Some devices may have limitations on the lower or higher end of the frequency spectrum.
- Audio source: The quality of the original audio source also plays a role. If the source material is compressed or of low quality, the Bluetooth audio output will reflect those limitations.
In practical terms, you can expect:
- Most Bluetooth audio devices to deliver good sound quality within the human hearing range.
- Higher-end devices using codecs like aptX and aptX HD to provide a wider frequency range, potentially offering a more detailed and immersive sound experience.
- Some lower-end devices to have limitations on the low-end frequencies, resulting in less impactful bass reproduction.
