bitrate

SoundPool: Error creating AudioTrack

房东的猫 提交于 2019-11-30 01:12:49
I am having a problem With SoundPool as it refuses to work with my .ogg files. I am getting this error: AudioFlinger could not create track, status: -12 Error creating AudioTrack I've found a thread concerning this and the (possible) answer is: Make sure you use .ogg media files with constant bitrate! Is this the case? (someone please confirm or cancel) If yes - which application to use (Audacity doesn't support .ogg custom export settings). If not - what else could be wrong? As a side note - before I used MediaPlayer but now I want to play a few sounds parallel. MAJOR EDIT: FOUND A WAY TO FIX

What is the difference between baud rate and bit rate?

自作多情 提交于 2019-11-29 22:02:38
I am really having hard time understanding the difference. Some say they are same, while others say there is a slight difference. What's the difference, exactly? I would like it if you explained with some analogy. Bits per second is straightforward. It is exactly what it sounds like. If I have 1000 bits and am sending them at 1000 bps, it will take exactly one second to transmit them. Baud is symbols per second. If these symbols — the indivisible elements of your data encoding — are not bits, the baud rate will be lower than the bit rate by the factor of bits per symbol. That is, if there are

SoundPool: Error creating AudioTrack

微笑、不失礼 提交于 2019-11-28 21:20:13
问题 I am having a problem With SoundPool as it refuses to work with my .ogg files. I am getting this error: AudioFlinger could not create track, status: -12 Error creating AudioTrack I've found a thread concerning this and the (possible) answer is: Make sure you use .ogg media files with constant bitrate! Is this the case? (someone please confirm or cancel) If yes - which application to use (Audacity doesn't support .ogg custom export settings). If not - what else could be wrong? As a side note -

What is the difference between baud rate and bit rate?

本小妞迷上赌 提交于 2019-11-28 16:57:27
问题 I am really having hard time understanding the difference. Some say they are same, while others say there is a slight difference. What's the difference, exactly? I would like it if you explained with some analogy. 回答1: Bits per second is straightforward. It is exactly what it sounds like. If I have 1000 bits and am sending them at 1000 bps, it will take exactly one second to transmit them. Baud is symbols per second. If these symbols — the indivisible elements of your data encoding — are not

Record video with MediaCodec and MediaMuxer, but the bitrate and framerate are incorrect

我怕爱的太早我们不能终老 提交于 2019-11-28 00:25:36
I wrote a demo to record a video using MediaCodec and MediaMuxer. I record a video with my demo and use ffprobe to check the video, the result is as follows: Duration: 00:00:06.86, start: 0.000000, bitrate: 723 kb/s Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 320x240, 619 kb/s, SAR 1:1 DAR 4:3, 30.02 fps, 30 tbr, 90k tbn, 180k tbc (default) Metadata: creation_time : 2015-06-05 13:19:24 handler_name : VideoHandle Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 96 kb/s (default) Metadata: creation_time : 2015-06-05 13:19:24 handler_name :

How to get Sampling rate and frequency of music file (MP3) in android?

僤鯓⒐⒋嵵緔 提交于 2019-11-27 20:45:30
I am developing audio player in android. So i want to add the details of the playing song i.e. Artist Name, Duration, Bit rate and sampling frequency. I can get Artist Name and duration of a music file by using MediaStore.Audio.Media library . But i am unable to get Bit rate and sampling frequency of the same file. So how can i get the same? As i know, it can be done by using native library. But don't know how? So anyone can help me on this? You can approximate it by dividing the file size by the length of the audio in seconds, for instance, from a random AAC encoded M4A in my library: File

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

How to get Sampling rate and frequency of music file (MP3) in android?

耗尽温柔 提交于 2019-11-26 22:58:49
问题 I am developing audio player in android. So i want to add the details of the playing song i.e. Artist Name, Duration, Bit rate and sampling frequency. I can get Artist Name and duration of a music file by using MediaStore.Audio.Media library . But i am unable to get Bit rate and sampling frequency of the same file. So how can i get the same? As i know, it can be done by using native library. But don't know how? So anyone can help me on this? 回答1: You can approximate it by dividing the file

Record video with MediaCodec and MediaMuxer, but the bitrate and framerate are incorrect

老子叫甜甜 提交于 2019-11-26 21:41:12
问题 I wrote a demo to record a video using MediaCodec and MediaMuxer. I record a video with my demo and use ffprobe to check the video, the result is as follows: Duration: 00:00:06.86, start: 0.000000, bitrate: 723 kb/s Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 320x240, 619 kb/s, SAR 1:1 DAR 4:3, 30.02 fps, 30 tbr, 90k tbn, 180k tbc (default) Metadata: creation_time : 2015-06-05 13:19:24 handler_name : VideoHandle Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D),