2014/10/16 上午 08:17:27

android Programming Glossary: khz

http://stackoverflow.com/questions/14432521/background-music-for-call

to consider is do you really want to have music playing in the background during a call The audio is going to be 8 kHz mono or 16 kHz mono if you're in a wideband call and it's going to be AMR encoded along with the rest of the speech signal.. is do you really want to have music playing in the background during a call The audio is going to be 8 kHz mono or 16 kHz mono if you're in a wideband call and it's going to be AMR encoded along with the rest of the speech signal AMR is a low..

How to convert pcm samples in byte array as floating point numbers in the range -1.0 to 1.0 and back?

http://stackoverflow.com/questions/15087668/how-to-convert-pcm-samples-in-byte-array-as-floating-point-numbers-in-the-range

floating point signal processing share improve this question You ask two questions How to downsample from 22kHz to 8kHz How to convert from float 1 1 to 16 bit int and back Note that the question has been updated to indicate that #1.. point signal processing share improve this question You ask two questions How to downsample from 22kHz to 8kHz How to convert from float 1 1 to 16 bit int and back Note that the question has been updated to indicate that #1 is taken.. care of elsewhere but I'll leave that part of my answer in in case it helps someone else. 1. How to downsample from 22kHz to 8kHz A commenter hinted that this can be solved with the FFT. This is incorrect I mention this here http blog.bjornroche.com..

Speech to Text from own sound file

http://stackoverflow.com/questions/6989981/speech-to-text-from-own-sound-file

comments for a potential workaround. Also make sure that your file contains high quality audio at least 16 bit and 16 kHz to get a better transcription. See also Voice recognition on android with recorded sound clip share improve this answer..

How to get frequency from fft result?

http://stackoverflow.com/questions/7674877/how-to-get-frequency-from-fft-result

data and identify the frequency of the largest peak N 1024 size of FFT and sample window Fs 44100 sample rate 44.1 kHz data N input PCM data buffer fft N 2 FFT complex buffer interleaved real imag magnitude N 2 power spectrum capture audio..