opus

问题 I am working on a webRTC web application which works wonderfully so far. What I have not figured out yet is how to tell the Opus codec to (force) use "full band", for example. Setting the codec up for 510 kHz bit rate is easy: desc.sdp=desc.sdp.replace(/a=mid:audio\r\n/g,'a=mid:audio\r\nb=AS:510\r\n'); But is there a way to tell Opus which band to use? 回答1: Specifying the band is not that bad. With opus, you just specify the MAX rate capabilities and let it run from there. By default OPUS

问题 I would like to see if it's possible to have direct access to Opus using getUserMedia or anything similar from the latest browsers. I've been researching on it a lot but with no Good results. I'm aware that either Opus or Speex are actually used in webkitSpeechRecognition API. I would like to do speech recognition but using my own server rather than Google's. 回答1: So there are a lot of suggestions about Emscripten but nobody did, so I ported the encoder opus-tools to JavaScript using

问题 I would like to see if it's possible to have direct access to Opus using getUserMedia or anything similar from the latest browsers. I've been researching on it a lot but with no Good results. I'm aware that either Opus or Speex are actually used in webkitSpeechRecognition API. I would like to do speech recognition but using my own server rather than Google's. 回答1: So there are a lot of suggestions about Emscripten but nobody did, so I ported the encoder opus-tools to JavaScript using

问题 I would like to see if it's possible to have direct access to Opus using getUserMedia or anything similar from the latest browsers. I've been researching on it a lot but with no Good results. I'm aware that either Opus or Speex are actually used in webkitSpeechRecognition API. I would like to do speech recognition but using my own server rather than Google's. 回答1: So there are a lot of suggestions about Emscripten but nobody did, so I ported the encoder opus-tools to JavaScript using

问题 I am creating a voip app for iOS in objective-c. Currently i am trying to create the audio part: recording the audio data from microphone, encoding with Opus, decoding, and then playing. For the recording and playing i use AudioUnit. Also i made a buffer implementation which allocates places of memory each with initially set size. There are three main methods: - setBufferSize - for setting buffer's sub allocated spaces. - writeDataToBuffer - for creating new space(if needed), and filling data

问题 I am currently using libopus in order to encode some audio that I have. When consulting the documentation for how to use the encoder, one of the arguments the encode function takes in is max_data_bytes , a opus_int32 that has the following documentation: Size of the allocated memory for the output payload. May be used to impose an upper limit on the instant bitrate, but should not be used as the only bitrate control Unfortunately, I wasn't able to get much out of this definition as to how to

问题 I am currently using libopus in order to encode some audio that I have. When consulting the documentation for how to use the encoder, one of the arguments the encode function takes in is max_data_bytes , a opus_int32 that has the following documentation: Size of the allocated memory for the output payload. May be used to impose an upper limit on the instant bitrate, but should not be used as the only bitrate control Unfortunately, I wasn't able to get much out of this definition as to how to

问题 I am currently using libopus in order to encode some audio that I have. When consulting the documentation for how to use the encoder, one of the arguments the encode function takes in is max_data_bytes , a opus_int32 that has the following documentation: Size of the allocated memory for the output payload. May be used to impose an upper limit on the instant bitrate, but should not be used as the only bitrate control Unfortunately, I wasn't able to get much out of this definition as to how to

问题 I am currently using libopus in order to encode some audio that I have. When consulting the documentation for how to use the encoder, one of the arguments the encode function takes in is max_data_bytes , a opus_int32 that has the following documentation: Size of the allocated memory for the output payload. May be used to impose an upper limit on the instant bitrate, but should not be used as the only bitrate control Unfortunately, I wasn't able to get much out of this definition as to how to

问题 I am currently using libopus in order to encode some audio that I have. When consulting the documentation for how to use the encoder, one of the arguments the encode function takes in is max_data_bytes , a opus_int32 that has the following documentation: Size of the allocated memory for the output payload. May be used to impose an upper limit on the instant bitrate, but should not be used as the only bitrate control Unfortunately, I wasn't able to get much out of this definition as to how to