flac

How to convert wav to flac from python?

五迷三道 提交于 2019-12-03 06:48:08
I've just started using Python and am using the PyAudio and Wave modules to take sound from my microphone and convert it to a .wav file. What I'm trying to do is now convert that .wav to a .flac . I've seen a few ways to do this which all involve installing a converter and placing it in my environmental PATH and calling it via os.system . Are there any other ways to convert a .wav to a .flac via Python? The solution I'm looking for needs to work on both Windows and Linux. May be you're looking for Python Audio Tools. It seems PAT can do whatever you want. I have not tested this solution but

setPreferredHardwareSampleRate doesn't work

匿名 (未验证) 提交于 2019-12-03 03:03:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm using the code that can be found here . I've tried to change sample rate using: [[AVAudioSession sharedInstance] setPreferredHardwareSampleRate:SAMPLE_RATE error:nil]; Inside the init function on SoundRecoder.m file. (SAMPLE_RATE is 16000.0) When I'm checking the file it seems that still the metadata says the sample rate is 44100, I've tried also to use (as suggested here ): AudioSessionSetProperty ( kAudioSessionProperty_PreferredHardwareSampleRate ,sizeof(F64sampleRate) , &F64sampleRate ); When F64sampleRate is 16000 but still same

How to write FLAC files in java

匿名 (未验证) 提交于 2019-12-03 02:52:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have a requirement to write FLAC files in java. Earlier I was writing the audio input into a WAV file and then converting it to FLAC file using a external converter I was looking into JFlac to find any API through which I can write FLAC files. I found that AudioFileFormat.TYPE in java supports only the following file formats - AIFC, AIFF, SND, AU, WAVE . I would like to have a method where I can capture the audio from the microphone and, using an API such as Audiosystem.write, write it to a FLAC file instead of WAV file. Please suggest a

ffmpeg to convert from flac to wav

匿名 (未验证) 提交于 2019-12-03 01:49:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I need to convert a flac file to a wav file without changing sample rate and bit depth. As far as I know changing these properties may distort the audio, so how do i specify them not to be changed? Also, is there any way to prevent metadata to be written to the output file? 回答1: As rogerdpack commented, the command line: ffmpeg -i inputfile.flac output.wav should do exactly what you want. Addressing your concerns about keeping the resulting audio intact, FLAC is a lossless format and decoding it to raw PCM stored in a WAV file will keep

Chunked Encoding using Flac on iOS

扶醉桌前 提交于 2019-12-03 00:52:00
I found a library that helps to convert WAV file to Flac: https://github.com/jhurt/wav_to_flac Also succeed to compile Flac to the platform and it works fine. I've been using this library after capturing the audio on wav format to convert it to Flac and then send to my server. Problem is that the audio file could be long and then precious time is wasted. The thing is that I want to encode the audio as Flac format and send that to server on the same time when capturing and not after capturing stops, So, I need a help here on how to do that (encode Flac directly from the audio so I could send it

Running command line on multiple music files

99封情书 提交于 2019-12-02 08:07:45
I am using a CLI program called metaflac ( http://flac.sourceforge.net/documentation_tools_metaflac.html ) to remove padding from various FLAC music files on my computer. Using the following command in a batch file (with metaflac.exe in the same folder) successfully completes this task for an individual file: metaflac --dont-use-padding --remove --block-type=PADDING "filename.flac" I have to do this for several thousand files and don't want to do it all manually/individually. Is there an easy way for me to simply direct this command to a directory and have it act upon every file in there? This

Convert raw PCM to FLAC?

牧云@^-^@ 提交于 2019-12-01 08:12:52
EDIT: I've updated the code below to resemble the progress I have made. I'm trying to write the .wav header myself. The code does not work properly as of now, the audio is not being written to the file properly. The code does not contain any attempts to convert it to a .flac file yet. I am using a Raspberry Pi ( Debian Linux ) to record audio with the ALSA library . The recording works fine, but I need to encode the input audio into the FLAC codec. This is where I get lost. I have spent a considerable amount of time trying to figure out how to convert this raw data into FLAC , but I keep

Convert raw PCM to FLAC?

谁说胖子不能爱 提交于 2019-12-01 06:42:20
问题 EDIT: I've updated the code below to resemble the progress I have made. I'm trying to write the .wav header myself. The code does not work properly as of now, the audio is not being written to the file properly. The code does not contain any attempts to convert it to a .flac file yet. I am using a Raspberry Pi (Debian Linux) to record audio with the ALSA library. The recording works fine, but I need to encode the input audio into the FLAC codec. This is where I get lost. I have spent a

ffmpeg to convert from flac to wav

青春壹個敷衍的年華 提交于 2019-11-28 23:17:32
I need to convert a flac file to a wav file without changing sample rate and bit depth. As far as I know changing these properties may distort the audio, so how do i specify them not to be changed? Also, is there any way to prevent metadata to be written to the output file? Multimedia Mike As rogerdpack commented, the command line: ffmpeg -i inputfile.flac output.wav should do exactly what you want. Addressing your concerns about keeping the resulting audio intact, FLAC is a lossless format and decoding it to raw PCM stored in a WAV file will keep perfect fidelity. The only thing you might

ffmpeg FLAC 24 bit 96khz to 16 bit 48khz

余生长醉 提交于 2019-11-27 18:54:41
问题 Trying to figure out ffmpeg, currently working on getting 24bit/96khz FLAC files into 16bit/48khz. 回答1: ffmpeg -i input.flac -sample_fmt s16 -ar 48000 output.flac List sample formats: ffmpeg -sample_fmts List additional flac options: ffmpeg -h encoder=flac See FFmpeg Resampler Documentation for additional resampling options including available dithering methods. 回答2: As a bash script, that produces new files with -16 appended to their names; one could rename then delete the original files