SuperCollider has documentation in the HTML format available in the supercollider-doc package. The code appears to be loading CoreAudio anyway and performing the same kinds of queries in a more robust way than regex matching strings. When the server is compiled to use JACK as the audio backend, the ServerOption's device can be used in two ways: A nil device is equivalent to Server.default.options.device = "default:SuperCollider"; The JACK connections can be configured via the environment variables SC_JACK_DEFAULT_INPUTS and SC_JACK_DEFAULT_OUTPUTS. We aren't capturing the output of the scsynth boot command, presumably because we'd like it to be non-blocking and running in the background whilst we boot the other concerns. Re: Maximum Digital Sample Rate possible (3 digital inputs)? In the code above I've added a couple of defensive programming things to make sure the command will fail gracefully by returning 0 if the information isn't available. If you count the unary and binary operators, there are over 300. The most recommended APIs are listed first. The . By clicking “Sign up for GitHub”, you agree to our terms of service and o.inDevice_("Windows WASAPI : Microphone"); By default the server will boot to your system's default audio devices. 1．録音データによる音声認識 さてさて、音声認識の第二弾です。 60爺、前回は、マイクからの音声入力を行って、Juliusを動かしましたが、今度は、録音したファイルを入力にして、音声認識を行ってみます。 (1) 前準備 ファイルの入力を行う privacy statement. The output file's sample rate is specified by sample-rate. Millions of developers and companies build, ship, and maintain their software on GitHub — the largest and most advanced development platform in the world. There are pros and cons to each approach so I'm going to detail what I've found to help @samaaron and everyone else to make an informed decision. To create one, you have to open the Audio MIDI Setup application (in /Applications/Utilities). Sound Synthesis 1: Additive, Subtractive, Modulation 3. ServerOptions.inDevices; // input devices This manual page documents briefly the scsynth command, the audio server of SuperCollider. Link to the line in the SuperCollider source where the input != output warning is raised: https://github.com/supercollider/supercollider/blob/master/server/scsynth/SC_CoreAudio.cpp#L816. to your account. Output will be written to output-filename. The definition of hi-res audio states that any music file recorded with a sample rate and bit depth higher than 44.1kHz/16-bit is considered high definition (HD) audio. You can always update your selection by clicking Cookie Preferences at the bottom of the page. The people who wrote SuperCollider are much cleverer than me so I'm assuming there's a good reason as to why this remains unfixed. Note that the sampling rate of the output file will be the same as that of the server app. // connect all output channels with system SuperCollider is a real time audio synthesis programming language. We’ll occasionally send you account related emails. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. 1. Dialog parameters — Enter information about the filter, such as structure and coefficients, in … Fully adjustable sample rate (192k+) and block size 32-bit float signal chain Sampling buffers use 64-bit float Fast and fluid control rate modulation 250 Unit generators in SuperCollider Hundreds more community contributed UGens "Built-in Output" Output Device Streams: 1 0 channels 2 SC_AudioDriver: sample rate = 44100.000000, driver's block size = 512 SuperCollider 3 server ready. For functions that vary with time, let s(t) be a continuous function (or "signal") to be sampled, and let sampling be performed by measuring the value of the continuous function every T seconds, which is called the sampling interval or the sampling period. that can be used to communicate with audio devices. Learn more. Supercollider Instruments can take their inputs from real-time MIDI controllers and can process audio files and live sound input. input and output branches) generally do not limit the sample rate, but to achieve this limit additional delay elements may have to be introduced into the nonrecursive branches. Image from Sony In this article, we will cover the fundamentals of sample rate and bit depth along with their impact on … If ASIO driver is available, it is probably the best choice to ensure low input/output latency. Sign in The default is 1024. On Windows there are multiple audio driver APIs (e.g. Booting with: In: ASIO : ASIO4ALL v2 Out: ASIO : ASIO4ALL v2 Sample rate: 44100.000 Latency (in/out): 0.016 / 0.000 sec At this point you will see the ASIO4ALL options appear in your system, it is a green square with a Timestamped messages will maintain consistent latency over long sessions, but may not be perfectly sample-accurate. Its default value is 64 though it can be set to any value between 4 and 256. In Supercollider, data is played as it is generated. It is a virtual ASIO driver, communicating with the soundcard using Windows' native APIs. MP3 sample rate does not affect file size much (or at all if you use Constant Bit Rate) so I suggest you just choose 24000 Hz. SuperCollider is a real time audio synthesis programming language. An illustration of granular synthesis, using SuperCollider’s TGrains unit-generator. If you are using an internal soundcard or a device which does not come with an ASIO driver, an alternative is to use ASIO4ALL. The Initial conditions value can be an M i -by- N matrix containing one value for each channel or a scalar to be repeated across all elements of the M i -by- … ServerOptions.outDevices; // output devices. You should set both input and output devices' sample rate to the same value. Input sample D+1 (row D+1 of the input matrix) appears in the output as sample M i +1, followed by input sample D+1+K, input sample D+1+2K, and so on. ASIO drivers usually provide both inputs and outputs through a single device. Sequencing By default the server will boot to your system's default audio devices. Extracting the sample rates is easy enough with a bit of regex fu: The downside here is that this extra level of detail is not available on OSX 10.6 as it doesn't print the "Devices:" information which is a shame. SC's syntax is an OO programming language, with a syntax mixture of C++ and Smalltalk. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. PlayBuf.ar(numChannels,bufnum,rate,trigger,startPos,loop) numChannels - number of channels that the buffer will be. Two things I noticed whilst looking at the boot_server_osx method. I think finally we can put this issue to bed. Have a question about this project? SuperCollider has documentation in the HTML format available in the supercollider-doc package. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. To access ServerOptions instance of the default server, you can use Server.default.options. After installing ASIO4ALL, it can be selected as follows (confirm in the post window when the server boots):Server.default.options.device = "ASIO : ASIO4ALL v2"; A reference for making audio device selection, /usr/local/share/SuperCollider/HelpSource/Reference/AudioDeviceSelection.schelp. The easiest way I've found to detect sample rates automatically on OSX is to use the built in system_profiler command. If input-filename is the underscore character _, then no input file will be read. I’ve got output device sample rate and bit depth set to 24-bit, 48000Hz in Windows control panel. なんか output の sample rate がどうの言ってます。 解決方法 1. iMacのAudio MIDI設定を開く 2. ここで出力を選択し、フォーマットを選択 3. 入力と同じフォーマット(今回は44.1kHz)を選択 以 … Note - no rate control: SynthDef("myDef",{ arg out=0, buf; ) Sample Rate Converter ändern die Samplefrequenz diskreter Zeitreihen. For more information, see our Privacy Statement. Some of the bit rate and sample rate preferred are given below: For MP3format the Mp3 streaming bit rates and sample rate for stereo may range from 96–320 kbps/44.1–48KHz, the … Audio is unaffected in other applications prior to opening SuperCollider (e.g., Audacity, Spotify, Facebook, YouTube). If input-filename is the underscore character _, then no input file will be read. If you want to explicitly tell the server to use the internal soundcard, you need to specify both input and output device. Already on GitHub? We have now: Successfully merging a pull request may close this issue. Introduction and Overview 2. Server.default.options.outDevice_("Built-in Output"); In case of a dedicated audio interface, you might need to specify a single device, e.g.Server.default.options.device_("MOTU 828"); On Windows and macOS you can programmatically obtain a list of available audio devices without booting the server:ServerOptions.devices; // all devices // Boot the server s.boot; // … ServerOptions.outDevices; // output devices. Windows is changing it to 48k for some reason... so I have to set Windows sampling rate to 44.1k to match my external audio usb interface (scarlett 18i20). Output will be written to output-filename. (Soon a live input will take the I've not been able to confirm it but I think this should work on 10.7 and 10.9. You can also choose Enable or Disable from the menu, to keep the hardware sample rate … An integer representing the nominal sample rate of the server; in other words, the sample rate that was requested of the server when it was booted. Umwandeln können Sie Sampleraten ganz leicht: Wir zeigen Ihnen, … (The example is based on code in the TGrains helpfile.) You can limit the report to audio information only by running system_profiler SPAudioDataType which outputs the following on my machine (OSX 10.8.5), (You can get PList xml output by passing the -xml flag to system_profiler but it doesn't appear to be as detailed and is much more difficult to parse). The output file header-format should be one of: AIFF, WAVE, NeXT. The check for sample rates only works on OSX 10.7 and later as You can change its name to something specific if desired, for example "InternalAndMOTU". The FIR Decimation block resamples the discrete-time input at a rate K times slower than the input sample rate, where K is the integer value you specify for the Decimation factor parameter. This helps to support sample-accurate scheduling; however, messaging latency from the SuperCollider language will drift over long periods of time. If anyone knows more about this portion of the code and the reasons why the sample rates have to match I welcome enlightenment. The output file's sample rate is specified by sample-rate. The Upsample block resamples each channel of the Mi-by-N input at a rate L times higher than the input sample rate by inserting L-1 zeros between consecutive samples. Specific devices can be selected through an instance of ServerOptions. The following example comes from a MacBook Pro:Server.default.options.inDevice_("Built-in Microph");Server.default.options.outDevice_("Built-in Output"); In case of a dedicated audio interface, you might need to specify a single device, e.g.Server.default.options.device_("MOTU 828"); On macOS you c… The hardware sample rate converter is turned off if the input stream is encoded. ServerOptions cannot override JACK's selection of audio hardware. At this point you will see the ASIO4ALL options appear in your system, it is a green square with a white triangle. Partial device name matching is supported in Windows (though not in macOS). There aren't any built in command line tools that I've found that will allow this. (BufRateScale scales the speed, in case the wavefile has a different sample rate to the server) Play a file straight off the disk Load it outside the synth so it can be reused. One possible reason why a server may fail to boot is a mismatch between input and output devices' sample rates, which may occur when using a different device for input and output (which is the case when using a Mac's internal soundcard). The following list provides basic reference for different APIs. 6: Private 1 7: Private 2 etc. This can be set in Windows's Audio Control Panel. I have over a thousand audio files and I want to check if their sample rate is 16kHz. Here is a list of valid sample rate/bit rate combinations for MP3. If the server fails to boot due to sample rate mismatch, an error will be posted accordingly. We use optional third-party analytics cookies to understand how you use GitHub.com so we can build better products. It might provide better performance with built-in soundcards and it should allow for multichannel operation with such devices (if supported by the hardware). The other thing I noticed is that SuperCollider seems to "fix" the sample rate somehow after failing once, so that booting the server again immediately afterwards the input sample rate is then set to the value of the output sample rate. This can be fixed by opening Audio MIDI Setup in /Applications/Utilities and setting the sample rates to the same value for the input and output devices and then restarting SonicPi. "open -a 'Audio MIDI Setup'".unixCmd; // execute this to launch it, Now you need to tell SuperCollider to use your new aggregate device.Server.default.options.device = "Aggregate Device"; //or the name you have specified in the previous step. Booting with: In: ASIO : ASIO4ALL v2 Out: ASIO : ASIO4ALL v2 Sample rate: 44100.000 Latency (in/out): 0.016 / 0.016 sec SC_AudioDriver: sample rate = 44100.000000, driver's block size = 64 SuperCollider 3 server ready This tour covers many, but not all of them. ServerOptions also allows you to specify other important parameters of the device - the sample rate and hardware buffer size. I've not really done any CoreAudio programming so I'm unsure of the specific command but there are a couple of projects that appear to do similar things: Another option would be to use the coreaudio gem from https://github.com/nagachika/ruby-coreaudio but this would be adding another dependency which is not ideal just before a release. Oder Sie möchten Audiodateien mit einer Hard- oder Software verwenden, die diese Samplerate nicht unterstützt. A Tour of available Unit Generators. Purpose and Motivation On Windows, scsynth was not able to select separate input and output devices (it accepted only single device name and tried to use it as both input … Receiving notification messages from server localhost Shared memory server interface initialized Use a web search engine to find a download link. The number of audio rate busses, which includes input and output busses. The hardware has to support the sample rate that you choose.. verbosity ... -- Use the sample clock. Here is a list of valid sample rate/bit rate … The output file sample-format should be … To do it manually, it would take me forever. macOS provides a way to combine multiple physical devices into a virtual Aggregate Device. PlayBuf sample playback oscillator Plays back a sample resident in memory. However, once Code: Select all. Both input and output device should use the same sample rate (although some APIs might provide resampling). SuperCollider Workshop in Mexico City | Algorithmic and Stochastic Music The 2013 International SuperCollider Symposium, May 20-24, 2013 in Boulder, Colorado … "SC_JACK_DEFAULT_OUTPUTS".setenv("system"); By default the server will boot to your system's default audio devices using MME driver (which usually means higher latency). o.outDevice_("Windows WASAPI : Speakers"); Learn more, Fix boot on OSX where input sample rate != output sample rate. By default, SuperCollider on Linux uses JACK, and the audio device selection is managed by the JACK server. You can see the fields for Default Input Device and Default Output Device above. I think if we grepped for the waning above, then added a retry method to the boot_server_osx it might work transparently, at the cost of a longer boot time across OSX installs. The following example comes from a MacBook Pro:Server.default.options.inDevice_("Built-in Microph"); Sample-Based Processing When you set the Input processing parameter to Elements as channels (sample based), the block treats an M-by-N matrix input as M*N independent channels, and upsamples each channel over time. Booting with: In: ASIO : ASIO4ALL v2 Out: ASIO : ASIO4ALL v2 Sample rate: 44100.000 Latency (in/out): 0.016 / 0.000 sec. 0: Output 1 0: Output 1 1: Output 2 1: Output 2 2: Input 1 2: Output 3 3: Input 2 3: Output 4 4: Private 1 4: Input 1 5: Private 2 5: Input 2 etc. true -- Use the system clock. It was surprisingly difficult to get good info on this. categories of unit generators: sources SuperCollider has over 250 unit generators. It can however boot at the second time of asking if a sample rate is specified. Fixes issue sonic-pi-net#87 SuperCollider can't boot if the sample rates do not match. Windows 10 also provides us the audio recording software, the Voice Recorder, which you can use to record audios and music in Windows 10 without any fee. they're used to gather information about the pages you visit and how many clicks you need to accomplish a task. The API (listed before the device name) needs to match between the input and the output, for example:o = Server.default.options; The maximum sample rate of an algorithm is determined only by its recursive parts according to Theorem 6.2 [9, 23, 24].Nonrecursive parts of the signal-flow graph (e.g. If you want to explicitly tell the server to use the internal soundcard, you need to specify both input and output device. An integer representing the nominal sample rate of the server; in other words, the sample rate that was requested of the server when it was booted. The format is either a string that specifies another jack client or a comma-separated list of jack ports.// connect first to input channels with system You can do this in Audio MIDI Setup:"open -a 'Audio MIDI Setup'".unixCmd; // execute this to launch it, Sometimes you might want to use multiple devices for input or output. This will allow you edit your settings for … (See ServerOptions for information on how to set the number of input and output channels, and busses) Read and write to bus indices The output file's sample rate is specified by sample-rate. You should do this from an user account with administrator privileges. to set the client name to register with JACK: to use a specific JACK server, as well as set the client name: If you need to specify the device, you will need to do so for both input and output (setting both, Both input and output device needs to use the same API (listed before the name, for example. This manual page documents briefly the scsynth command, the audio server of SuperCollider. 在Gnuradio中，我们可以看到很多模块中都有Sample rate 这个概念然后看到一个说明 Any processing block's 'Sample Rate' parameter is used for DSP calculation, not for controlling the rate at which samples are ServerOptions.inDevices; // input devices That said, the C++ code involved can be found fairly easily by grepping the SuperCollider Source Code for the string "input and output sample rates do not match". Die Samplerate müssen Sie immer dann konvertieren, wenn Sie Audiomaterial mit unterschiedlicher Abtastfrequenz zusammenführen möchten. Sampling can be done for functions varying in space, time, or any other dimension, and similar results are obtained in two or more dimensions. Given the above values it should be trivial to run if output_sample_rate != input_sample_rate as part of the boot_server_osx method and either raise an error or issue a warning. they're used to log you in. Motivations for the design of Supercollider were the ability to realize sound processes that were different every time they played, write pieces describing ranges of possibilities rather than fixed entities and to facilitate live improvisation by a composer/performer. For more detail on this subject see Order of execution, Default Group, and Node Messaging.. See SoundFile for information on the various sample and header formats. Supercollider computes control functions and other values at a lower rate than the sampling rate called the ``sub-frame'' size. ... Fails on invalid input or if the server is running. Nick Collins' Website SuperCollider tutorial Also available as a downloadable zip of RTF, HTML and text files: sctutorial.zip Shortcuts: 1. I want the sample's amplitude and duration to be matched by the amplitude and release of the Env of a separate oscillator. Valid inputs are in the range [0..(this.maxNumClients-1)]. this must be a fixed integer. 2010-06-05 fix Latch first sample output bug: if trigger > 0 initially, latch should not output 0 - jh 2010-08-10 refactored delay ugens, added audio-rate delay time input - tb 2010-09-04 fix firstArg behavior in BinaryOpUGen by a list Learn more, We use analytics cookies to understand how you use our websites so we can make them better, e.g. I've been asked to investigate this issue and I'm documenting my findings here in case anyone runs into the issue. But I cannot access any p #2 Apr 12, 2014, 08:28 pm Last Edit : Apr 12, 2014, 08:43 pm by Norrlandssiesta Reason : 1 概要SuperColliderだと標準のオーディオ・インターフェースならばs.bootするだけで良いのだが、その他のオーディオ・インターフェースの選択の方法がわからなかったので、調べてみた。 Komplete Audio 6から出力す After rebooting the server (Server.default.reboot) you should see in the post window that it now uses the Aggregate Device instead of system defaults: Note that when you specify a sound device through SuperCollider's ServerOptions, there is no need to use the aggregate device as the system's default device. The code to write these files is open and available in the SuperCollider language app. 2: Input 1 2: Output 3 3: Input 2 3: Output 4 4: Private 1 4: Input 1 5: Private 2 5: Input 2 etc. actualSampleRate A floating-point number representing the current hardware sample rate, which may drift. Not all sample and header formats are compatible. "SC_JACK_DEFAULT_INPUTS".setenv("system:capture_1,system:capture_2"); This reference provides information on audio device selection, including platform-specific details. You signed in with another tab or window. Is there a way to check the sample rate using python. We use essential cookies to perform essential website functions, e.g. http://whoshacks.blogspot.co.uk/2009/01/change-audio-devices-via-shell-script.html, https://developer.apple.com/library/mac/samplecode/HALExamples/Listings/ReadMe_txt.html, https://github.com/nagachika/ruby-coreaudio, https://github.com/supercollider/supercollider/blob/master/server/scsynth/SC_CoreAudio.cpp#L816, Fix mismatched input/output sample rates on OSX, Fatal Error During SuperCollider Server Boot, Detect non-matching rates and raise a clear error for the user, Change the sample rates to a matching value as part of the boot process, See if we can fix the issue in SuperCollider itself, taught Sonic Pi to attempt to auto-fix the sample rates by changing the system defaults, figured out a way of disabling scsynth's input and rate checker when we can't fix the rate mismatch. Any solution would mean using CoreAudio which is Apple's ObjectiveC library. I hope this helps to get the issue resolved, and it will also apply to similar issues regarding boot for Overtone. I work with audio using an external audio usb interface running at 44.1k. If this wasn't a requirement, we could run the command synchronously and capture the output, grepping for the warning: That would be enough to raise a sensible error and pass it onto the user. The aim is to get this fixed for the v2.0 release. Bug fix: remove hardcoded default sample rate 44100 on scsynth with PortAudio on Windows (it will boot to hardware's sample rate by default) this resolves booting when the API doesn't allow changing SR and SR was not specified I have a very short sample file, which plays via a Synth in the following loop. On a Mac, SuperCollider will refuse to boot if there's a mismatch between the sample rate for the input device (usually the built in microphone) and the sample rate for the output device (usually the built in speakers). MME, WASAPI, ASIO etc.) Server.default.reboot; You can programmatically obtain a list of available audio devices without booting the server:ServerOptions.devices; // all devices The output file header-format should be one of: AIFF Once the sample rate for both speaker (output device) and microphone (input device) have been changed to the same value, go back to Audition, you should be able to start recording sound now.