# Tools you need
Mytek Stereo192-DSD DAC (firmware 1.8.1) Violectric HPA V200 Yulong DA8 Yulong A28 Cables: Atlas Equator MKIII Integra RCA cable (0.5m) Forza Claire Hybrid RCA (8 inch) (loan from @igndenny - Thanks a lot! Very nice sounding RCA cable!) Pangea Audio - USB cable - PCOCC & 4% silver - 2 Meters QED Reference Audio Evolution XLR cable (DIY 40 cm cable). WindowsでDSDを聞くために購入したが、違いがわからず通常のPCMばかり聞くようになった。 UbuntuのPCにUSB接続したところ鳴ったため、AudaciousやAudacityでミキサーを通さず出力している。. Audio Basis - articles about audio DSD editing software is intended to altering DSF and DFF audio file content: gain, cutting, merging, EQ, etc. DSD is 1-bit signal based on sigma-delta modulation and its editing is not obvious at first glance unlike PCM. There are many disputes about 'native' and 'non-native' editing, damage of original stuff. For example, if your DSD 1.7 folder is located in c: Radio dsd-1.7, you would type in command prompt “cd c: Radio dsd-1.7”. Now type into the command prompt the command “dsd -i /dev/dsp -o /dev/dsp -fd” to begin decoding. This will use the default sound device set in Windows sound recording properties. たまたま、外で今まで聞いたことのない、鳥の鳴き声が聴こえたので、ボイスメモで録音しました。 再生してみると非常に小さい音で録音されています。 この録音ファイルをPCに取り込みAudacityで音を大きく更にクリアーにする方法を紹介します。.
For audio downsampling you need these tools:
ffprobe(of the FFmpeg framework);
sox(SoX — Sound eXchange).
On a Mac install it with Homebrew:
# Probe the original audio file
To get the sampling rate of the original audio file, use the
# Determine the sampling rate your device supports
Audacity Daddy Nana Jio Song Video
First, you have to find out the maximum sampling rate your device supports. Forexample, the maximum playback sampling rate the iPod Classic (Gen. 6) supportsis 48 kHz.
The rule of thumb when downsampling is to divide the original sampling rate bya power of 2. Hence, when downsampling a 192 kHz audio, the target sampling rateshould be 96 kHz (2:1 decimation) or 48 kHz (4:1 decimation). When downsamplinga 176 kHz (176.4 kHz, actually) audio, the target sampling rate should be 88.2kHz or 44.1 kHz (2:1 and 4:1 decimation, respectively).
# Downsample with SoX
Audacity Daddy Nana Jio
sox is relatively easy, you just have to use the rateeffect. You also have to set the phase and the quality. The SoXFAQ states:
Resampling is a series of compromises so there's no one true answer for allsituations, but the following rules of thumb should cover most people's needsfor 99% of the time:
- Phase setting: if resampling to < 40k, use intermediate phase (
-I)otherwise use linear phase (
-L, or don't specify; linear phase is thedefault).
- Quality setting: if resampling (or changing speed, as it amounts to thesame thing) at/to > 16 bit depth (i. e. most commonly 24-bit), use VHQ(
-v), otherwise, use HQ (
-h, or don't specify).
- Bandwidth setting: don't change from the default setting (95%).
- If you're mastering to 16-bit, you also need to add dither (and in mostcases noise-shaping) after the rate.
If you want to downsample a Hi-Res 192 kHz audio to 48 kHz (e. g. for an iPodClassic), you should use the rate effect with linear phase (the default one)and the highest quality (VHQ). You can use the
--guard option toautomatically invoke the gain effect to guard against clipping.
If you're mastering to 16-bit depth:
# Downsample multiple files in parallel
To downsample a bunch of files in parallel you can use the GNU
parallelutility to run
sox. By default
parallel will run as many jobs aspossible bringing all the CPU cores into play.
On a Mac you can install
parallel with Homebrew:
Audacity Dsd Editor
For example, let us downsample all the Hi-Res FLAC files in the currentdirectory and its subdirectories and set the bit depth to 16 bits.
find to find all the files with names ending in
.flac and pipe theoutput to
--tmux to be able to view all the jobs in a
tmuxsession in real time. Use the option
--eta to see the progress information.
After the downsampling is finished, you can inspect the logs for errors andwarnings.
You can use