Download fm transmitter for galaxy s2

Internet Download Manager. Advanced SystemCare Free. VLC Media Player. MacX YouTube Downloader. Microsoft Office YTD Video Downloader. Adobe Photoshop CC. VirtualDJ Avast Free Security. WhatsApp Messenger. Talking Tom Cat. Clash of Clans. Subway Surfers. TubeMate 3. Google Play. Biden to send military medical teams to help hospitals. GameStop PS5 in-store restock. N95, KN95, KF94 masks. Microsoft is done with Xbox One. Windows Windows. Most Popular. New Releases. This will generate an FM transmission on By default the PS changes back and forth between Pi-FmRds and a sequence number, starting at The PS changes around one time per second.

The Raspberry Pi's oscillator error may be above this figure. I suppose the receivers are more tolerant than stated in the RDS spec. One way to measure the ppm error is to play the pulses. Record the audio output from a radio with a good audio card. Say you sample at Measure 10 intervals. Using Audacity for example determine the number of samples of these 10 intervals: in the absence of clock error, it should be , samples. With my Pi, I found , samples.

For instance, this can be used to read MP3 files using Sox:. Any other line format is silently ignored. PiFmRds is an experimental program, designed only for experimentation. It is in no way intended to become a personal media center or a tool to operate a radio station , or even broadcast sound to one's own stereo system.

In most countries, transmitting radio waves without a state-issued licence specific to the transmission modalities frequency, power, bandwidth, etc.

Therefore, always connect a shielded transmission line from the RaspberryPi directly to a radio receiver, so as not to emit radio waves. Never use an antenna. Even if you are a licensed amateur radio operator, using PiFmRds to transmit radio waves on ham frequencies without any filtering between the RaspberryPi and an antenna is most probably illegal because the square-wave carrier is very rich in harmonics, so the bandwidth requirements are likely not met.

I could not be held liable for any misuse of your own Raspberry Pi. Any experiment is made under your own responsibility. Reception works perfectly with all the devices above. RDS Surveyor reports no group errors. CPU usage increases dramatically when adding audio because the program has to upsample the unspecified sample rate of the input audio file to kHz, its internal operating sample rate. Doing so, it has to apply an FIR filter, which is costly.

In addition, every minute, it inserts a 4A group for transmitting CT, clock time. Successive biphase symbols overlap: the samples are added so that the result is equivalent to applying the shaping filter a root-raised-cosine RRC filter specified in the RDS standard to a sequence of Manchester-encoded pulses. Upsampling is performed using a zero-order hold followed by an FIR low-pass filter of order The filter is a sampled sinc windowed by a Hamming window. The filter coefficients are generated at startup so that the filter cuts frequencies above the minimum of:.

The program was changed to support a sample rate of precisely kHz. Skip to content. Star 1. Branches Tags.