I have tried to send 12-bit audio to be listened to in real time through the HC05 SPP bluetooth module hooked up to an arduino and DAC over serial with a python RFCOMM socket. I have since learned that Serial Port Protocol is not very great at all for this purpose due to its low bandwidth. I figured I could definitely send the data and then play it out through a DAC, but I doubt an arduino would hold an array the size of a WAV file and maybe not even an mp3 file, but that would defeat the purpose of controlling the audio (play,pause,rewind,etc) from my computer. Would it be more realistic and worthwhile to use an A2DP enabled bluetooth module? Or is it still possible to listen to acceptable quality 12-16 bit audio in real time with SPP? I have tried to use lower bit songs, adjusted baud rates for the arduino and HC-05 serial ports, and tried to adjust the magnitude of the values outputted by the DAC to the audio port and I still seem to get crackly audio. It seems the problem comes down to the low bitrate transfer speed of SPP, or am I wrong?
Is it realistic to stream 12-16 bit audio through SPP bluetooth in realtime?
372 Views Asked by user P520 At
1
There are 1 best solutions below
Related Questions in AUDIO
- php Variable name must change in for loop
- register_shutdown_function is not getting called
- Query returning zero rows despite entries existing
- Retrieving *number* pages by page id
- Automatically closing tags in form input?
- How to resize images with PHP PARSE SDK
- how to send email from localhost using codeigniter?
- Mariadb max Error while sending QUERY packet PID
- Multiusers login redirect different page in php
- Imaginary folder when I use "DirectoryIterator" in PHP?
Related Questions in BLUETOOTH
- php Variable name must change in for loop
- register_shutdown_function is not getting called
- Query returning zero rows despite entries existing
- Retrieving *number* pages by page id
- Automatically closing tags in form input?
- How to resize images with PHP PARSE SDK
- how to send email from localhost using codeigniter?
- Mariadb max Error while sending QUERY packet PID
- Multiusers login redirect different page in php
- Imaginary folder when I use "DirectoryIterator" in PHP?
Related Questions in BITRATE
- php Variable name must change in for loop
- register_shutdown_function is not getting called
- Query returning zero rows despite entries existing
- Retrieving *number* pages by page id
- Automatically closing tags in form input?
- How to resize images with PHP PARSE SDK
- how to send email from localhost using codeigniter?
- Mariadb max Error while sending QUERY packet PID
- Multiusers login redirect different page in php
- Imaginary folder when I use "DirectoryIterator" in PHP?
Related Questions in SPP
- php Variable name must change in for loop
- register_shutdown_function is not getting called
- Query returning zero rows despite entries existing
- Retrieving *number* pages by page id
- Automatically closing tags in form input?
- How to resize images with PHP PARSE SDK
- how to send email from localhost using codeigniter?
- Mariadb max Error while sending QUERY packet PID
- Multiusers login redirect different page in php
- Imaginary folder when I use "DirectoryIterator" in PHP?
Related Questions in A2DP
- php Variable name must change in for loop
- register_shutdown_function is not getting called
- Query returning zero rows despite entries existing
- Retrieving *number* pages by page id
- Automatically closing tags in form input?
- How to resize images with PHP PARSE SDK
- how to send email from localhost using codeigniter?
- Mariadb max Error while sending QUERY packet PID
- Multiusers login redirect different page in php
- Imaginary folder when I use "DirectoryIterator" in PHP?
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Sure, at some awfully slow sample rate <= 8 kHz. You'd be better off sending 8-bit audio at a higher sample rate.
Yes, absolutely, without question. That's what it's designed for, as I mentioned in your other question.
Acceptable is subjective. If it's just voice, you can get away with it. If you want reasonable audio quality for music, almost universally, no, it's not acceptable.
Without any code to inspect and debug, it's impossible to say what the specific problem is that you're referring to. Undoubtedly, the low bandwidth will not enable good quality audio anyway.
If you must continue to use SPP and simple codecs like PCM, at least use differential PCM to save a bit more bandwidth.