{"_id":"576d42354bcd290e00428955","project":"56a526d4e7a1622b0024fae4","parentDoc":null,"user":"56bc6af27c91881900089bac","__v":1,"version":{"_id":"576d42354bcd290e00428941","project":"56a526d4e7a1622b0024fae4","__v":1,"createdAt":"2016-06-24T14:22:45.076Z","releaseDate":"2016-06-24T14:22:45.076Z","categories":["576d42354bcd290e00428942","576d42354bcd290e00428943","576d42354bcd290e00428944","576d42354bcd290e00428945","576d42354bcd290e00428946","576d42354bcd290e00428947"],"is_deprecated":false,"is_hidden":false,"is_beta":false,"is_stable":true,"codename":"","version_clean":"2.0.0","version":"2"},"category":{"_id":"576d42354bcd290e00428942","version":"576d42354bcd290e00428941","project":"56a526d4e7a1622b0024fae4","__v":0,"sync":{"url":"","isSync":false},"reference":false,"createdAt":"2016-01-24T19:32:37.467Z","from_sync":false,"order":0,"slug":"documentation","title":"Our Technology"},"updates":[],"next":{"pages":[],"description":""},"createdAt":"2016-02-11T16:54:40.088Z","link_external":false,"link_url":"","githubsync":"","sync_unique":"","hidden":false,"api":{"results":{"codes":[]},"settings":"","auth":"required","params":[],"url":""},"isReference":false,"order":2,"body":"## What devices can send chirps?\n\nVirtually any device with a loudspeaker is capable of chirping. The standard Chirp protocol transmits information in the acoustic band from 1.7kHz to 10kHz, meaning that any device capable of rendering timing-accurate audio at 22kHz or above can chirp. This includes all consumer mobiles and tablets, laptops, portable electronic devices, and even many toys and games.\n\nFor a list of the software and hardware platforms that we support, see the [Chirp SDKs Overview](doc:our-sdks). If we do not offer an SDK for your platform please [get in touch](doc:contact). \n\nOnce you've generated a chirp, the audio can then be embedded in practically any other audio stream: radio, online streams, CDs, public address systems, and even vintage technology such as vinyl and cassette tape. \n\n## What devices can receive chirps?\n\nThough it is more computationally intensive than playing a chirp, most devices - even lower power products - can decode chirps. At present, we offer SDKs for iOS and Android that are capable of receiving chirps. See [Chirp SDKs Overview](doc:our-sdks) for more information.\n\n## What is the range of a chirp?\n\nThe range of transmission varies depending on several factors. These include the volume of the transmitting device the acoustic environment and sensitivity of the listening device. Typically the range extends from a few centimetres to a few metres.\n\n\n## How much data can I send with Chirp?\n\nOur standard products is able to transmit 50 bits of information. However we are able to provide custom protocols to companies and partners which enables them to send greater amounts of data over there. If you're interested in talking about custom audio protocols for your product please [get in touch](doc:contact).","excerpt":"Frequently asked questions about Chirp's audio technology","slug":"audio-transmission-faq","type":"basic","title":"Frequently Asked Questions"}

Frequently Asked Questions

Frequently asked questions about Chirp's audio technology

## What devices can send chirps? Virtually any device with a loudspeaker is capable of chirping. The standard Chirp protocol transmits information in the acoustic band from 1.7kHz to 10kHz, meaning that any device capable of rendering timing-accurate audio at 22kHz or above can chirp. This includes all consumer mobiles and tablets, laptops, portable electronic devices, and even many toys and games. For a list of the software and hardware platforms that we support, see the [Chirp SDKs Overview](doc:our-sdks). If we do not offer an SDK for your platform please [get in touch](doc:contact). Once you've generated a chirp, the audio can then be embedded in practically any other audio stream: radio, online streams, CDs, public address systems, and even vintage technology such as vinyl and cassette tape. ## What devices can receive chirps? Though it is more computationally intensive than playing a chirp, most devices - even lower power products - can decode chirps. At present, we offer SDKs for iOS and Android that are capable of receiving chirps. See [Chirp SDKs Overview](doc:our-sdks) for more information. ## What is the range of a chirp? The range of transmission varies depending on several factors. These include the volume of the transmitting device the acoustic environment and sensitivity of the listening device. Typically the range extends from a few centimetres to a few metres. ## How much data can I send with Chirp? Our standard products is able to transmit 50 bits of information. However we are able to provide custom protocols to companies and partners which enables them to send greater amounts of data over there. If you're interested in talking about custom audio protocols for your product please [get in touch](doc:contact).